2024-03-28T10:01:55Zhttp://oai-repositori.upf.edu/oai/requestoai:repositori.upf.edu:10230/161072020-04-21T08:19:25Zcom_10230_4984com_10230_5922com_10230_5542col_10230_4986col_10230_16116
Repositori digital de la UPF
author
Hernández Leo, Davinia
author
Moreno, Verónica
2012-01-17T16:41:24Z
2012-01-17T16:41:24Z
2010-07-22
Hernández-Leo D, Moreno V. The role of the Teaching Quality and Innovation Support Unit in the ICT Engineering Studies at Universitat Pompeu Fabra. Paper presented at: ICED 2010, Mejorar las Estrategias para el Aprendizaje Global de Calidad en Educación Superior. 2010 Jun 28-30; Barcelona, Spain.
http://hdl.handle.net/10230/16107
One of the strategies of Universitat Pompeu Fabra to support Quality Learning has been the creation of Units for the Support of Teaching Quality and Innovation within each faculty. In the seminar we will present the role and activities of the Polytechnic School Unit in charge or coordinating the efforts towards quality learning in the Information and Communication Technologies (ICT) Engineering Studies. We will also discuss how these activities are informed to relevant academic stakeholders.
eng
The role of the Teaching Quality and Innovation Support Unit in the ICT Engineering Studies at Universitat Pompeu Fabra
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/16107/1/aportacion_ICED.pdf
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oai:repositori.upf.edu:10230/161062023-03-28T14:19:53Zcom_10230_4984com_10230_5922com_10230_5542col_10230_4986col_10230_16116col_10230_23310
Repositori digital de la UPF
author
Hernández Leo, Davinia
author
Moreno, Verónica
2012-01-17T16:39:56Z
2012-01-17T16:39:56Z
2010
Hernández-Leo D, Moreno V. Introduction to University and the ICT Sector. En: III Workshop on Methods and Cases in Computing Education (MCCE 2010); 2010 Jun 27; Cádiz, España. [Cádiz]:[Universidad de Cádiz]; 2010. [7 p.].
http://hdl.handle.net/10230/16106
The innovative subject “Introduction to ICT” combines a general Introductory Course to the University with elements around the Information and Communication Technologies sector (including the ICT engineer competence profile, market aspects, etc.)This new course has been developed and implemented in three degree programmes offered by the Polytechnic School at Universitat Pompeu Fabra, Barcelona. The course team consists of thirteen teachers,/nincluding business professionals, librarians, computer technicians, institutional representatives as well as an educationalist responsible for advising on methodology and study techniques. The subject was designed for a high number of students (260). At the end of the course, we collected quantitative and qualitative/ninformation about the students’ satisfaction. The findings show the positive vision that they had about the topics worked during the subject. This paper describes the course, its implementation and evaluation and, of course, the details of the findings that we collected about students' satisfaction.
La innovadora assignatura "Introducció a les TIC" combina un curs d'Introducció General a la Universitat amb elements relacionats amb les Tecnologies de la Informació i la Comunicació (incloent el perfil enginyer TIC, aspectes de mercat, etc.)./nAquest nou curs s'ha desenvolupat i implementat en tres programes oferts per l'Escola Superior Politècnica de la Universitat Pompeu Fabra, Barcelona. L'equip d'aquest curs està format per 13 professors, incloent professionals de l'empresa, bibliotecaris, tècnics informàtics, representants institucionals, així com un responsable educatiu de l'assessorament de les tècniques de metodologia i estudi. L'assignatura ha estat dissenyada per a un gran nombre d'estudiants (260). Al final del curs, vam recollir informació quantitativa i qualitativa sobre la satisfacció estudiantil. Els resultats van mostrar la visió positiva que tenien sobre els temes que van treballar durant l'assignatura./nAquest article descriu el curs, la seva implementació i avaluació així com els detalls dels resultats recollits a partir de les opinions dels estudiants.
eng
Aquest document està subjecte a una llicència Creative Commons.
Introduction to University and the ICT Sector
info:eu-repo/semantics/article
URL
http://repositori.upf.edu/bitstream/10230/16106/1/itic%40mcce-2010-submitted.pdf
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oai:repositori.upf.edu:10230/161022021-11-23T13:19:27Zcom_10230_4984com_10230_5922com_10230_5542col_10230_4986col_10230_16116
Repositori digital de la UPF
author
Hernández Leo, Davinia
author
Moreno, Verónica
2012-01-16T14:45:05Z
2012-01-16T14:45:05Z
2009-12-16
Moreno V, Hernández-Leo D. Creación de materiales con soporte Web para la mejora de la función docente en la Escuela Superior Politécnica. En: Congreso Internacional sobre uso y buenas prácticas con TIC: la web 2.0. Universidad de Málaga; 2009.
http://hdl.handle.net/10230/16102
La Unidad de Apoyo a la Calidad y la Innovación Docente de la Escuela Superior Politécnica (Universidad Pompeu Fabra) se plantea la necesidad de potenciar experiencias innovadoras que respondan a las necesidades y demandas del profesorado de la Escuela así como a las directrices enmarcadas en el EEES. Es por esto que apostamos por la creación de un espacio Web sobre la USQUID que se fundamente en la idea de favorecer el contacto entre esta Unidad y el personal a quien ofrece sus servicios –fundamentalmente, profesorado de la ESUP-. En esta Web se facilitan recursos e informaciones varias como publicaciones, anuncios de congresos, recursos relacionados con metodologías docentes experimentadas en Ingenierías, etc./nen los dos idiomas oficiales de Cataluña y en inglés para responder también al multilinguismo por el que apuesta nuestra universidad así como para potenciar el desarrollo de actividades multilingües en el aula.
spa
Aquest document està subjecte a una llicència Creative Commons.
Creación de materiales con soporte web para la mejora de la función docente de la Escuela Superior Politécnica
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/16102/1/CongInterUsoWeb2.0Malaga.pdf
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oai:repositori.upf.edu:10230/161082021-11-23T13:23:18Zcom_10230_4984com_10230_5922com_10230_5542col_10230_4986col_10230_16116
Repositori digital de la UPF
author
Moreno, Verónica
2012-01-17T16:41:28Z
2012-01-17T16:41:28Z
2009-09-21
Moreno V. Marco metodológico para la definición de un perfil profesional en educación superior. En: V Congreso Internacional de Formación para el Trabajo: Estrategias de innovación en la formación para el trabajo. Universidad de Granada. Granada; 2009.
http://hdl.handle.net/10230/16108
En el marco del Espacio Europeo de Educación Superior 1 se inscriben innumerables acciones que están desarrollando todas las universidades europeas con la intención de llegar al 2010 con un bagaje lo suficientemente importante como para afrontar este cambio con entereza y sobretodo conservando (o incrementando) la calidad de los procesos de enseñanza- aprendizaje que hasta el momento han predominado. Dentro de este amplio proceso de transformación se encuentra el diseño de los nuevos Grados que brinda la oportunidad de replantear los planes de estudios, por tanto, la organización de las asignaturas, estructura de los contenidos, metodologías y sistemas de evaluación. Toda esta reflexión debe girar, a nuestro entender, alrededor de tres núcleos que se encuentran en estado de/ninterdependencia: los escenarios profesionales, los perfiles profesionales y las competencias que en ellos se inscriben./nPara poder plantear los nuevos Grados en coherencia con la era del EEES debe hacerse un análisis minucioso de los perfil profesionales demandados por el mercado de trabajo que, al fin y al cabo será el destino de los profesionales que se forman en nuestras universidades, es por ello, que la tarea de definir el perfil profesional a priori del diseño de los nuevos Grados resulta una máxima para garantizar la calidad de estos. En este trabajo se presenta un ejemplo de metodología a seguir para la definición de un perfil profesional en Educación Superior, concretamente, el del Ingeniero TIC mediante el Análisis Funcional.
spa
Aquest document està subjecte a una llicència Creative Commons.
Marco metodológico para la definición de un perfil profesional en educación superior = Methodological framework for the definition of a professional profile in higher education
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/16108/1/COM-%20V.%20CIFO.pdf
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COM- V. CIFO.pdf
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http://repositori.upf.edu/bitstream/10230/16108/5/COM-%20V.%20CIFO.pdf.txt
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oai:repositori.upf.edu:10230/161092021-11-23T13:20:43Zcom_10230_4984com_10230_5922com_10230_5542col_10230_4986col_10230_16116
Repositori digital de la UPF
author
Moreno, Verónica
author
Hernández Leo, Davinia
2012-01-17T16:41:31Z
2012-01-17T16:41:31Z
2009-07-03
Moreno V, Hernández-Leo D. Evaluación de la Estructura Modular en la Escuela Superior Politécnica.Primera Aproximación. En: II Jornadas de Id-TIC 2009. Universidad de Alcalá de Henares. Madrid; 2009.
http://hdl.handle.net/10230/16109
En esta comunicación se plasman los resultados obtenidos de la evaluación llevada a cabo respecto la iniciativa tomada por parte del profesorado de la Escuela Superior Politécnica de la Universidad Pompeu Fabra en cuanto a la construcción de una estructura modular sólida y eficaz para la coordinación y gestión de las asignaturas del actual y futuro plan de estudios. Esta nueva estructura de módulos resulta una iniciativa innovadora que, a su vez, potencia y enfatiza la calidad de los estudios. En concreto la comunicación presenta los resultados de la evaluación piloto de uno de los módulos. Estos resultados nos ofrecen información sobre el punto en el que estamos actualmente así como nos orientan hacia nuevas/nacciones a desarrollar para optimizar la estructura modular/nsobre la que se basan los nuevos Grados mejorando los procesos/nque de ella se desprenden.
spa
Aquest document està subjecte a una llicència Creative Commons.
Evaluación de la Estructura Modular en la Escuela Superior Universitaria Politécnica. Primera aproximación
info:eu-repo/semantics/article
URL
http://repositori.upf.edu/bitstream/10230/16109/1/id-TIC_2009.pdf
File
MD5
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id-TIC_2009.pdf
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http://repositori.upf.edu/bitstream/10230/16109/6/id-TIC_2009.pdf.txt
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oai:repositori.upf.edu:10230/161112021-11-23T13:19:47Zcom_10230_4984com_10230_5922com_10230_5542col_10230_4986col_10230_16116col_10230_23310
Repositori digital de la UPF
author
Moreno, Verónica
author
Dempere-Marco, Laura
author
Garcia Garcia, Núria, 1958-
author
Hernández Leo, Davinia
2012-01-18T15:46:42Z
2012-01-18T15:46:42Z
2010-07-22
Moreno V, Dempere-Marco L, García N, Hernández-Leo D. Desenvolupament en Moodle d'Eines d'Autoaprenentatge i Avaluació continua en les àrees de Física i Matemàtiques. En: VI Congreso Internacional en Docencia Universitaria e Innovación. Barcelona: Universidad de Barcelona; 2010.
http://hdl.handle.net/10230/16111
Aquesta comunicació presenta el projecte Aula de Tests desenvolupat com a suport en el desplegament de les assignatures de física i matemàtiques de primer curs dels estudis d'enginyeria de l’Escola Superior Politècnica de la Universitat Pompeu Fabra. El projecte té com a objectiu dissenyar eines d'auto aprenentatge i d'avaluació contínua accessible on-line a través de l'entorn Moodle per a afavorir el procés d'aprenentatge de l’estudiant. El context d’aquesta experiència es caracteritza/nper la inherent dificultat dels estudis d’enginyeria, pel fet que molts estudiants entren a la universitat amb mancances substancials de coneixements en aquestes àrees així com la heterogeneïtat en quant a la formació pre-universitària. S’hi descriuen les/ncaracterístiques de les activitats programades i el context on s’han aplicat i es presenten els resultats de satisfacció, participació i notes que aporten informació útil al professorat per a adequar la planificació i les activitats els cursos següents.
This communication presents the Tests Virtual Classroom project which has been developed to provide support to the implementation of the mathematics and /nphysics courses within the engineering studies at the Polytechnic School from Pompeu /nFabra University. The goal of this project is to design both self-learning and formative /nassessment tools that are available online through the Moodle platform in order to support the students' learning process. The context of this experience is characterised /nby an inherent difficulty associated with engineering courses, since many students enter /nhigher education with a substancial lack of technical knowledge, but also by the heterogeneity /nderived from the diversity of their previous education at secondary school level. The main features of the programmed activities and the context of their application are herein discussed. Finally, the communication presents results regarding satisfaction, participation and academic performance as measured by grades which provide useful information to the teaching team in order to refine both the planning and the proposed activities in subsequent years.
cat
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Desenvolupament en Moodle d’eines d’autoaprenentatge i avaluació continua en les àrees de Física i Matemàtiques
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/16111/1/Comunicaci%c3%b3_CIDUI.pdf
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http://repositori.upf.edu/bitstream/10230/16111/5/Comunicaci%c3%b3_CIDUI.pdf.txt
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oai:repositori.upf.edu:10230/161122021-11-23T13:22:36Zcom_10230_4984com_10230_5922com_10230_5542col_10230_4986col_10230_16116col_10230_23310
Repositori digital de la UPF
author
Moreno, Verónica
author
Infante, Jorge
author
Hernández Leo, Davinia
2012-01-18T15:57:17Z
2012-01-18T15:57:17Z
2009-10-04
Moreno V, Infante J, Hernández-Leo D. Implantación del plan de refuerzo del inglés en la Escuela de Ingeniería de Telecomunicación. Universitat Pompeu Fabra. Comunicació presentada a: I Congreso de Docencia Universitaria. Universidad de Vigo; 2009.
http://hdl.handle.net/10230/16112
Teniendo en cuenta la importancia del uso del inglés en la cotidianeidad del desempeño profesional del Ingeniero en Telecomunicaciones se ha diseñado un proyecto de innovación docente fundamentado en la inmersión de los estudiantes en esta lengua.
spa
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Implantación del plan de refuerzo del inglés en la Escuela de/nIngeniería de Telecomunicación. Universidad Pompeu Fabra
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/16112/1/Cong.%20Doc.%20Univ.%20Completo.pdf
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Cong. Doc. Univ. Completo.pdf
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http://repositori.upf.edu/bitstream/10230/16112/5/Cong.%20Doc.%20Univ.%20Completo.pdf.txt
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oai:repositori.upf.edu:10230/161132021-11-23T13:20:13Zcom_10230_4984com_10230_5922com_10230_5542col_10230_4986col_10230_16116
Repositori digital de la UPF
author
Moreno, Verónica
author
Frangi Caregnato, Alejandro
author
Piella Fenoy, Gemma
author
Infante, Jorge
author
Bellalta, Boris
2012-01-18T16:19:47Z
2012-01-18T16:19:47Z
2009-07-03
Moreno V, Frangi Caregnato A, Bellalta B, Piella Fenoy G, Infante J. El Curso de Introducción a la Universidad como Estrategia Organizativa para acercar al estudiantado de nueva incorporación a la Escuela Superior Politécnica. En: X Congreso Interuniversitario de Organización de las Instituciones Educativas. Universidad Autónoma de Barcelona y Universidad de Barcelona. Barcelona; 2008.
http://hdl.handle.net/10230/16113
En esta comunicación se presenta el proceso completo de diseño del Curso de Introducción a la Universidad (CIU) que se imparte en la Escuela Superior Politécnica de la Universidad Pompeu Fabra para los estudios de Ingeniería de Telecomunicación e Informática./nSe muestran también los resultados obtenidos por parte del colectivo discente así como las propuestas de mejora recibidas por el profesorado una vez finalizado el CIU 08-09
spa
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El curso de introducción a la universidad como estrategia organizativa para acercar al estudiantado de nueva incorporación a la Escuela Superior Politécnica.
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/16113/1/Com.CIU-CIOIE_08-09.pdf
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Com.CIU-CIOIE_08-09.pdf
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http://repositori.upf.edu/bitstream/10230/16113/5/Com.CIU-CIOIE_08-09.pdf.txt
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oai:repositori.upf.edu:10230/161142021-11-23T13:23:39Zcom_10230_4984com_10230_5922com_10230_5542col_10230_4986col_10230_16116
Repositori digital de la UPF
author
Moreno, Verónica
author
Bellalta, Boris
author
Infante, Jorge
author
Piella Fenoy, Gemma
author
Frangi Caregnato, Alejandro
2012-01-18T16:35:15Z
2012-01-18T16:35:15Z
2009-07-03
Moreno V, Bellalta B, Infante J, Piella Fenoy G, Frangi Caregnato A. El perfil del estudiantado recién llegado a la Ingeniería en Telecomunicación e Informática. En: II Jornadas Internacionales UPM sobre Innovació Educativa y Convergencia Europea 2008. Universidad Politécnica de Madrid. Madrid; 2008.
http://hdl.handle.net/10230/16114
L’Escola Superior Politècnica (ESUP) de la Universitat Pompeu Fabra (UPF) ha realitzat una anàlisi per conèixer el perfil dels estudiants que s’incorporen a les Enginyeries de Telecomunicacions i Informàtica contemplant conjunts de variables referents a diversos camps tant de l'àmbit personal com acadèmic.
spa
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El perfil del estudiantado recién llegado a la ingeniería en telecomunicación e informática. (INECE'08)
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/16114/1/Poster.pdf
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oai:repositori.upf.edu:10230/161152021-11-23T13:21:03Zcom_10230_4984com_10230_5922com_10230_5542col_10230_4986col_10230_16116col_10230_23310
Repositori digital de la UPF
author
Moreno, Verónica
author
Frangi Caregnato, Alejandro
author
Bellalta, Boris
author
Piella Fenoy, Gemma
author
Infante, Jorge
2012-01-18T16:54:20Z
2012-01-18T16:54:20Z
2009-07-03
Moreno V, Frangi Caregnato A, Bellalta B, Piella Fenoy G, Infante J. Evaluación del Curso de Introducción a la Universidad. Comunicació presentada a: II Jornadas Internacionales UPM sobre Innovació Educativa y Convergencia Europea 2008. Universidad Politécnica de Madrid. Madrid; 2008.
http://hdl.handle.net/10230/16115
El Curso de Introducción a la Universidad (CIU) se desarrolla en/nla Escuela Superior Politécnica de la Universidad Pompeu Fabra con la intención de alcanzar dos objetivos: (I) ofrecer a los nuevos información sobre las características organizativas y académicas de los estudios que ofrece la Escuela e (II) introducirlos a la metodología implantada mediante el Espacio Europeo de Educación Superior (EEES) de forma participativa y activa. Para la consecución de los objetivos se plantean actividades, clases y/nseminarios en base a tres grandes bloques temáticos: aspectos/ninstitucionales, metodológicos y recursos disponibles./nSe administran dos instrumentos que permiten realizar la evaluación de la organización y desarrollo de las actividades realizadas en particular, así como del curso en general. Estos resultados son analizados individual y globalmente y posteriormente se comparan con los obtenidos en el CIU 07-08./nDe toda esta información se extraen conclusiones del CIU a dos niveles en cuanto a la organización del mismo: por un lado se verifica la incorporación de mejoras respecto el CIU del curso pasado y, por el otro, se extraen nuevas propuestas de mejora para implementar de cara al próximo curso.
spa
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Evaluación del curso de introducción a la universidad (INECE’08)
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/16115/1/Com.EVAL_CIU-INECE_08-09.pdf
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oai:repositori.upf.edu:10230/162032020-09-02T07:41:17Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Meinhardt Llopis, Enric
other
Universitat Pompeu Fabra
2012-02-09T09:47:03Z
2012-02-09T09:47:03Z
2008
Meinhardt-Llopis E. Edge detection by selection of pieces of level lines. In: 15th IEEE International Conference on Image Processing. ICIP 2008; 2008 Oct 12-15; San Diego, USA. [New York]: IEEE; c2008. p. 613-616
http://hdl.handle.net/10230/16203
http://dx.doi.org/10.1109/ICIP.2008.4711829
We propose an edge detector based on the selection of well/ncontrasted pieces of level lines, following the proposal of/nDesolneux-Moisan-Morel (DMM) [1]. The DMM edge detector/nhas the problem of over-representation, that is, every/nedge is detected several times in slightly different positions./nIn this paper we propose two modifications of the original/nDMM edge detector in order to solve this problem. The first/nmodification is a post-processing of the output using a general/nmethod to select the best representative of a bundle of curves./nThe second modification is the use of Canny’s edge detector/ninstead of the norm of the gradient to build the statistics. The/ntwo modifications are independent and can be applied separately./nElementary reasoning and some experiments show/nthat the best results are obtained when both modifications are/napplied together.
eng
© 2008 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4711829
Edge detection by selection of pieces of level lines
info:eu-repo/semantics/conferenceObject
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http://repositori.upf.edu/bitstream/10230/16203/1/Meinhardt_icip08.pdf
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oai:repositori.upf.edu:10230/163082020-04-17T09:27:07Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Facciolo Furlan, Gabriele
author
Arias Martínez, Pablo
author
Caselles, Vicente
author
Sapiro, Guillermo
2012-03-14T17:35:21Z
2012-03-14T17:35:21Z
2009
Facciolo G, Arias P, Caselles V, Sapiro G. Exemplar-based interpolation of sparsely sampled images. In: EMMCVPR 2009. Proceedings of the 7th International Conference on Energy Minimization Methods in Computer Vision and Pattern Recognition; 2009 Aug 24-27; Bonn, Germany. Berlin: Springer; 2009. p. 331-344. DOI 10.1007/978-3-642-03641-5_25
http://hdl.handle.net/10230/16308
http://dx.doi.org/10.1007/978-3-642-03641-5_25
A nonlocal variational formulation for interpolating a sparsel sampled image is introduced in this paper. The proposed variational formulation, originally motivated by image inpainting problems, encourages/nthe transfer of information between similar image patches, following the paradigm of exemplar-based methods. Contrary to the classical inpainting/nproblem, no complete patches are available from the sparse image/nsamples, and the patch similarity criterion has to be redefined as here proposed. Initial experimental results with the proposed framework, at very low sampling densities, are very encouraging. We also explore some/ndepartures from the variational setting, showing a remarkable ability to recover textures at low sampling densities.
eng
© Springer-Verlag Berlin Heidelberg 2009. The original publication is available at http://www.springerlink.com/content/730r552hx818382m/
Exemplar-based interpolation of sparsely sampled images
info:eu-repo/semantics/conferenceObject
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oai:repositori.upf.edu:10230/163822023-03-28T14:14:32Zcom_10230_4984com_10230_5922com_10230_5542col_10230_4986col_10230_16116col_10230_23310
Repositori digital de la UPF
author
Hernández Leo, Davinia
author
Moreno, Verónica
author
Dimitriadis, Yannis
author
Asensio-Pérez, Juan I.
2012-04-26T13:53:51Z
2012-04-26T13:53:51Z
2010
Hernández-Leo D, Moreno V, Dimitriadis Y, Asensio-Pérez JI. Aplicación de recomendaciones en pro de la alineación entre Competencias-Metodología- Evaluación en asignaturas de Ingeniería Telemática. En: IX Jornadas de Ingeniería Telemática (JITEL 2010); 2010 Sep 29-Oct 1; Valladolid, España. [Valladolid]: [Universidad de Valladolid]; 2010. [7 p.].
http://hdl.handle.net/10230/16382
Este trabajo recoge la experiencia llevada a cabo en tres asignaturas en cuanto a la aplicación de recomendaciones (acciones) dirigidas a la mejora de la alineación entre las competencias planteadas en los respectivos planes docentes, la metodología para trabajarlas y evaluación de las mismas. Concretamente las asignaturas que han puesto en marcha estas recomendaciones pertenecen a la Universidad Pompeu Fabra (una asignatura) y a la Universidad de Valladolid (las otras dos) todas pertenecientes al área de Ingeniería Telemática. Además de incluir una breve descripción de las recomendaciones aplicadas se presenta el contexto de cada caso (características básicas de las asignaturas), el proceso seguido durante su aplicación así como la evaluación llevada a cabo (tanto durante el proceso de aplicación/ncomo al finalizar) para conocer el nivel de satisfacción tanto del colectivo discente como del docente. Finalmente se incluyen las reflexiones realizadas en forma de conclusiones que giran entorno a dos ejes: el primero de ellos es el impacto de la aplicación de las recomendaciones en la calidad de la función docente y el segundo hace referencia al aumento de la visibilidad de esta relación desde la perspectiva discente y las repercusiones en su proceso de aprendizaje.
Aquest treball recull l'experiència duta a terme en tres assignatures quant a l'aplicació de recomanacions per a la millora de l'alineació entre les competències plantejades en els respectius plans docents, la metodologia per treballar-les i la seva avaluació. Les assignatures són de l'àrea d'Enginyeria Telemàtica i pertanyen a la Universitat Pompeu Fabra (una assignatura) i a la Universitat de Valladolid (les altres dues). A més d'incloure una breu descripció de les recomanacions aplicades es presenta el context de cada assignatura, el procés seguit en la implementació de les recomanacions i la seva avaluació. Les conclusions obtingudes giren entorn de dos eixos principals: l'impacte de l'aplicació de les recomanacions en la qualitat de la funció docent, i l'augment de la visibilitat d'aquesta relació des de la perspectiva discent i les repercussions en el seu procés d'aprenentatge.
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Aplicación de recomendaciones en pro de la alineación entre competencias-metodología-evaluación en asignaturas de ingeniería telemática
info:eu-repo/semantics/article
URL
http://repositori.upf.edu/bitstream/10230/16382/1/alineame-2010-jie.pdf
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oai:repositori.upf.edu:10230/163832023-03-28T14:37:46Zcom_10230_4984com_10230_5922com_10230_5542col_10230_4986col_10230_16116col_10230_23310
Repositori digital de la UPF
author
Moreno, Verónica
author
Hernández Leo, Davinia
author
Díaz Vicario, Anna
author
Asensio-Pérez, Juan I.
author
Romero Ternero, Maria del Carmen
2012-04-30T13:45:13Z
2012-04-30T13:45:13Z
2011
Moreno Oliver V, Hernández-Leo D, Díaz Vicario A, Asensio Pérez JI, Romero Ternero, MC. La evaluación como elemento clave de la formación basada en competencias: tres casos en el ámbito de las ingenierías. En: EVALfor, editor. Experiencias innovadoras en el aprendizaje a través de la evaluación: EVALtrends 2011 - Evaluar para aprender en la Universidad; 2011 Mar 9-11; Cádiz, España. Madrid: Bubok Publishing; 2011. p. 146-58.
http://hdl.handle.net/10230/16383
El Espacio Europeo de Educación Superior implica cambios organizativos y académicos referentes a la formación basada en competencias. El proyecto AlineaME, coordinado por la Unidad de Soporte a la Calidad y la Innovación Docente de la Escuela Superior Politécnica - Universidad Pompeu Fabra, propuso a docentes del área TIC y a pedagogos la reflexión conjunta en aras a diseñar recomendaciones centradas en la alineación entre los tres elementos clave del proyecto: competencias, metodología y evaluación (C*M*E). Este trabajo recoge tres casos de aplicación de recomendaciones, concretamente de Ingeniería Telemática (dos casos - Universidad de Valladolid y Pompeu Fabra) y de Ingeniería Técnica en Informática de Gestión (un caso - Universidad de Sevilla)./nLas recomendaciones aplicadas hacen referencia a la necesidad de explicitar la alineación C*M*E en los Planes Docentes de Asignaturas y de presentar esta alineación al estudiantado. También a la integración de la evaluación de la asignatura como tarea-proceso de aprendizaje. La metodología seguida para la/naplicación de ambas es (salvo pequeñas diferencias) parecida en los tres casos. La primera recomendación consistió en recoger en el Plan Docente la Alineación y en verbalizar dicha alineación en la sesión de presentación de la asignatura. La segunda se incorporó incluyendo actividades formativas en las que se favorecía la evaluación entre iguales. Para evaluar la aplicación de recomendaciones se recogieron evidencias en clave de satisfacción por parte del estudiantado así como valoraciones de los propios docentes. Para ello se diseñaron instrumentos específicos./nEn cuanto a la presentación de la alineación C*M*E en los Planes Docentes de asignaturas, los resultados indican que los alumnos son más conscientes de qué, cómo y por qué van a trabajar y ser evaluados. Globalmente valoran positivamente su utilidad para la autorregulación. Asimismo, plantear la evaluación como tarea de/naprendizaje resultó ser para los estudiantes un interesante elemento de reflexión.
The European Higher Education Area involves academic and organizational changes related to the competence-based learning. The AlineaME project, coordinated by the Unit for the Support of Teaching Quality and Innovation of the Polytechnic School at Universitat Pompeu Fabra, proposed ICT area teachers and pedagogues a joint reflection towards the development of recommendations focused on the alignment between the three key elements addressed in the project: competences, methodology and assessment (C*M*A). This paper presents three/ncases in which the recommendations have been implemented, specifically/nTelematics Engineering (two cases, University of Valladolid and Pompeu Fabra University) and Computer Science Engineering (one case, University of Seville)./nThe implemented recommendations refer to the need for the explicit alignment between C*M*A in the Teaching Plans, presenting this alignment to students, as well as the integration of the subject assessment as a learning process. The methodology for the implementation of both recommendations was (with minor/ndifferences) similar in all three cases. For the first one, the teachers explained the alignment between C*M*E in the Subject Teaching Plans (or Syllabus) and/nverbalized this alignment in the introductory session of the subjects. For the second one, teachers designed formative activities which contained and facilitate the peer assessment. Specific instruments were designed to assess the implementation of/nthese recommendations, specifically to collect data and qualitative evaluations about students’ satisfaction and teacher's observations./nThe results regarding the presentation of the alignment C*M*E in the Teaching Plans indicate that students are more aware of what, how and why they will work and be evaluated. Also, they valued it as useful for their self-regulation. Moreover, considering the assessment as part of the learning process showed to be an interesting element of reflection for the students.
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La evaluación como elemento clave de la formación basada en competencias: tres casos en el ámbito de la ingenierías
info:eu-repo/semantics/article
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http://repositori.upf.edu/bitstream/10230/16383/1/EVALtrends_2011_.pdf
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oai:repositori.upf.edu:10230/170452021-11-23T13:17:28Zcom_10230_4984com_10230_5922com_10230_5542col_10230_4986col_10230_16116col_10230_23310
Repositori digital de la UPF
author
Moreno, Verónica
author
Hernández Leo, Davinia
author
Daza, Vanesa
2012-08-01T09:19:05Z
2012-08-01T09:19:05Z
2012-07
Moreno V, Hernández-Leo D, Daza, V. El Programa EnginyCat a l'Escola Superior Politècnica: mentoría, suport acadèmic i adaptació al nou context formatiu. Comunicació presentada a: Congrès Internacional de Docència Universitària i Innovació. Universitat Pompeu Fabra, 2012
http://hdl.handle.net/10230/17045
L’Escola Superior Politècnica (ESUP) de la Universitat Pompeu Fabra, amb el suport del Consell Social va iniciar el curs 2009-2010 un Pla de Mentors (EnginyCat) adreçat als estudiants de primer curs dels Graus TIC. Aquesta és una iniciativa del Departament d’Innovació, Universitats i Empreses de la Generalitat de Catalunya i la seva missió és aproximar l’Enginyeria -el coneixement científic i tecnològic- als joves catalans. Els objectius de l’ESUP amb aquest programa són: donar suport motivacional als nouvinguts, orientar-los durant el desenvolupament de tasques acadèmic-formatives i/natendre qüestions més quotidianes. Les avaluacions realitzades fins al moment reflecteixen un notable grau de satisfacció dels estudiants.
cat
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El Programa EnginyCat a l’Escola Superior Politècnica: mentoría, suport acadèmic i adaptació al nou context formatiu
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/17045/1/CIDUI_2012.pdf
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oai:repositori.upf.edu:10230/170472021-11-23T13:17:06Zcom_10230_4984com_10230_5922com_10230_5542col_10230_4986col_10230_16116col_10230_23310
Repositori digital de la UPF
author
Escudero Mancebo, David
author
Hernández Leo, Davinia
2012-09-04T08:58:58Z
2012-09-04T08:58:58Z
2012-04
Escudero D, Hernández-Leo D. Aplicación de buenas prácticas para la mejora de la calidad de los trabajos de fin de grado en Ingeniería en Diseño Industrial. Comunicación presentada a: Simposio Internacional sobre Innovación y Calidad en la Formación de Ingenieros; 2012 abril 26-28; Valladolid.
http://hdl.handle.net/10230/17047
El trabajo presentado en esta comunicación se enmarca en un proyecto financiado por la Secretaría de Estado de Universidades, Ministerio de Educación Cultura y Deporte en su Programa de Estudios y Análisis, mejora de la calidad de la enseñanza superior y de la actividad del profesorado universitario en el Eje de Nuevos avances y determinación del impacto de las misiones universitarias, Modalidad de Trabajos de análisis, liderado/npor la Universitat Pompeu Fabra y en el que participan docentes de las universidades de Valladolid, Cádiz, Las Palmas de Gran Canaria, Sevilla, Autónoma de Barcelona, Carlos III de Madrid y Universidat Oberta de Catalunya./nEn el proyecto se ha realizado un trabajo de análisis de las prácticas programadas en las distintas universidades para velar por la calidad de los trabajos fin de grado, actualmente proyectos fin carrera. Se han recopilado diferentes procedimientos de evaluación llevados a cabo en diferentes Universidades que van desde plantillas de verificación para los tribunales de los proyectos a guías de procedimiento completas que verifican el/nestablecimiento y cumplimiento de hitos intermedios./nEn esta comunicación se muestra la aplicación de algunas de las prácticas propuestas en el caso real de proyectos fin de carrera en la titulación de Ingeniería Técnica en Diseño Industrial de la Escuela de Ingenierías Industriales. Se pone de manifiesto la utilidad del uso de dichas prácticas frente a enfoques más clásicos o simplistas.
spa
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Aplicación de buenas prácticas para la mejora de la calidad de los trabajos fin de grado en Ing. en Diseño Industrial
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/17047/1/SimposioInnovationQuality_2012.pdf
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oai:repositori.upf.edu:10230/198012021-11-23T13:24:00Zcom_10230_5922com_10230_5542com_10230_4984col_10230_16116col_10230_4986col_10230_23310
Repositori digital de la UPF
author
Moreno, Verónica
author
Hernández Leo, Davinia
author
Camps i Pujolar, Irene
author
Melero Gallardo, Javier
2012-11-07T09:20:13Z
2012-11-07T09:20:13Z
2012-10
Moreno V, Hernández-Leo D, Camps I, Melero J. Uso de rúbricas para el seguimiento y evaluación de los trabajos de fin de grado. Comunicación presentada a: II Congreso Internacional sobre evaluación por competencias mediante eRúbricas; 2012 Octubre 24-26; Málaga.
http://hdl.handle.net/10230/19801
En este trabajo se presenta una muestra de la experiencia llevada a cabo en la Escuela Superior Politécnica de la Universitat Pompeu Fabra en cuanto al uso de rúbricas para el seguimiento y evaluación de los, hasta el momento, Proyectos Fin de Carrera. Los primeros resultados, basados en informaciones provenientes tanto de directores, miembros de tribunal como de los propios/nestudiantes, muestran que, de manera global, el uso de rúbricas permite/nsistematizar tanto el seguimiento como la evaluación de los trabajos realizados, a la vez que facilita la homogenización de criterios (en clave de rigurosidad y transparencia). Por otro lado, esta experiencia nos ha permitido constatar algunos elementos de mejora de las rúbricas de cara a su implantación durante el curso académico 2012-2013 cuando comiencen en nuestra escuela los denominados Trabajos de Fin de Grado.
spa
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Uso de rúbricas para el seguimiento y evaluación de los trabajos fin de grado
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oai:repositori.upf.edu:10230/199422021-04-09T10:03:13Zcom_10230_5542com_10230_5922col_10230_8581col_10230_16116
Repositori digital de la UPF
author
Bonet, Blai
author
Geffner, Héctor
2012-12-10T11:52:45Z
2012-12-10T11:52:45Z
2011
Bonet B, Geffner H. Planning under partial observability by classical replanning: theory and experiments. In: Proceedings of the Twenty-Second International Joint Conference on Artificial Intelligence; july 16-22, 2011; Barcelona. Menlo Park, California: AAAI Press ; 2011. p. 1936-1941.
http://hdl.handle.net/10230/19942
http://dx.doi.org/10.5591/978-1-57735-516-8/IJCAI11-324
Planning with partial observability can be formulated as a non-deterministic search problem in belief space. The problem is harder than classical planning as keeping track of beliefs is harder than keeping track of states, and searching for action policies is harder than searching for action sequences. In this work, we develop a framework for partial observability that avoids these limitations and leads to a planner that scales up to larger problems. For this, the class of problems is restricted to those in which 1) the non-unary clauses representing the uncertainty about the initial situation are nvariant, and 2) variables that are hidden in the initial situation do not appear in the body of conditional effects, which are all assumed to be deterministic. We show that such problems can be translated in linear time into equivalent fully observable non-deterministic planning problems, and that an slight extension of this translation renders the problem solvable by means of classical planners. The whole approach is sound and complete provided that in addition, the state-space is connected. Experiments are also reported.
eng
© [2011], Association for the Advancement of Artificial Intelligence (www.aaai.org)
Planning under partial observability by classical replanning: theory and experiments
info:eu-repo/semantics/conferenceObject
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http://repositori.upf.edu/bitstream/10230/19942/1/geffner_planning.pdf
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oai:repositori.upf.edu:10230/199432020-04-16T09:55:03Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Ramírez Jávega, Miquel
author
Geffner, Héctor
2012-12-10T11:52:47Z
2012-12-10T11:52:47Z
2011
Ramírez M, Geffner H. Goal recognition over POMDPs: inferring the intention of a POMDP agent. In: Proceedings of the Twenty-Second International Joint Conference on Artificial Intelligence; july 16-22, 2011; Barcelona. Menlo Park, California: AAAI Press ; 2011. p. 2009-2014.
http://hdl.handle.net/10230/19943
http://dx.doi.org/10.5591/978-1-57735-516-8/IJCAI11-335
Plan recognition is the problem of inferring the goals and plans of an agent from partial observations of her behavior. Recently, it has been shown that the problem can be formulated and solved using/nplanners, reducing plan recognition to plan generation./nIn this work, we extend this model-based/napproach to plan recognition to the POMDP setting, where actions are stochastic and states are partially observable. The task is to infer a probability distribution over the possible goals of an agent whose behavior results from a POMDP model. The POMDP model is shared between agent and observer except for the true goal of the agent that is hidden to the observer. The observations are action sequences O that may contain gaps as some or even most of the actions done by the agent may not be observed. We show that the posterior goal distribution P(GjO) can be computed from the value function VG(b) over beliefs b generated by the POMDP/nplanner for each possible goal G. Some extensions/nof the basic framework are discussed, and a number/nof experiments are reported.
eng
© [2011], Association for the Advancement of Artificial Intelligence (www.aaai.org)
Goal recognition over POMDPs: inferring the intention of a POMDP agent
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/19943/1/geffner_goal.pdf
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oai:repositori.upf.edu:10230/199442021-11-23T13:15:26Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Patrizini, Fabio
author
Lipovetzky, Nir
author
Giacomo, Giuseppe de
author
Geffner, Héctor
2012-12-10T11:52:49Z
2012-12-10T11:52:49Z
2011
Patrizi F, Lipovetzky N, Giacomo G, Geffner H. Computing infinite plans for LTL goals using a classical planner. In: Proceedings of the Twenty-Second International Joint Conference on Artificial Intelligence; july 16-22, 2011; Barcelona. Menlo Park, California: AAAI Press ; 2011. p. 2003-2008.
http://hdl.handle.net/10230/19944
http://dx.doi.org/10.5591/978-1-57735-516-8/IJCAI11-334
Classical planning has been notably successful in synthesizing finite plans to achieve states where propositional goals hold. In the last few years, classical planning has also been extended to incorporate temporally extended goals, expressed in temporal logics such as LTL, to impose restrictions on the state sequences generated by finite plans. In this work, we take the next step and consider the computation of infinite plans for achieving arbitrary LTL goals. We show that infinite plans can also be obtained efficiently by calling a classical planner once over a classical planning encoding that represents and extends the composition of the planning/ndomain and the B¨uchi automaton representing/nthe goal. This compilation scheme has been implemented and a number of experiments are reported.
eng
© 2011 Association for the Advancement of Artificial Intelligence (www.aaai.org)
Computing infinite plans for LTL goals using a classical planner
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/19944/1/geffner_computing.pdf
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oai:repositori.upf.edu:10230/203632018-01-24T08:29:25Zcom_10230_4984com_10230_5922com_10230_5542col_10230_4986col_10230_16116
Repositori digital de la UPF
author
Hernández Leo, Davinia
author
Peig Olivé, Enric
author
Moreno, Verónica
2013-02-12T09:31:04Z
2013-02-12T09:31:04Z
2013-01
Hernández-Leo D, Peig i Olive E, Moreno V. Marco de evaluación por competencias para asignaturas de grado. En: Jornadas RED-U. Escuela Universitaria de Informática (EUI) UPM; 2013
http://hdl.handle.net/10230/20363
En aquest treball es presenta la síntesi del procés seguit per adaptar les assignatures de l'ESUP al nou marc d'avaluació de la UPF que té com a objectiu principal millorar la relació entre avaluació i adquisició de competències, completant l'adaptació a l'Espai Europeu d'Educació superior amb un marc adequat a l'avaluació continua que permeti la convivència de diversos sistemes d'avaluació en les diferents disciplines acadèmiques.
spa
Aquest document està subjecte a una llicència Creative Commons
Marco de evaluación por competencias para asignaturas de grado
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20363/1/RED-U-2013.pdf
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oai:repositori.upf.edu:10230/203642020-04-21T10:33:31Zcom_10230_4984com_10230_5922com_10230_5542col_10230_4986col_10230_16116col_10230_23310
Repositori digital de la UPF
author
Hernández Leo, Davinia
author
Moreno, Verónica
author
Peig Olivé, Enric
2013-02-12T10:18:52Z
2013-02-12T10:18:52Z
2013-01
Hernández-Leo D, Moreno V, Peig i Olive E. Learning design twofold strategies for teacher-led inquiry and student active learning. Paper presented at: Teacher-led Inquiry and Learning Design: The Virtuous Circle Workshop; 2013 Jan 28-30; Villard‐de‐Lans, Vercors
http://hdl.handle.net/10230/20364
This workshop paper states that fostering active student participation both in face-to-face lectures / seminars and outside the classroom (personal and group study at home, the library, etc.) requires a certain level of teacher-led inquiry. The paper presents a set of strategies drawn from real practice in higher education with teacher-led inquiry ingredients that promote active learning. These/npractices highlight the role of the syllabus, the importance of iterative learning designs, explicit teacher-led inquiry, and the implications of the context, sustainability and practitioners’ creativity. The strategies discussed in this paper can serve as input to the workshop as real cases that need to be represented in design and supported in enactment (with and without technologies).
eng
Aquest document està subjecte a una llicència Creative Commons
Learning design twofold strategies for teacher-led inquiry and/nstudent active learning
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20364/1/Learning_Design_Workshop.pdf
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oai:repositori.upf.edu:10230/203662018-01-24T08:22:56Zcom_10230_5542com_10230_5922col_10230_8581col_10230_16116
Repositori digital de la UPF
author
Bellur, Ashwin
author
Ishwar, Vignesh
author
Murthy, Hema A.
2013-02-13T10:45:16Z
2013-02-13T10:45:16Z
2012
Ishwar V, Bellur A, Murthy H. Motivic analysis and its relevance to Raga identification in carnatic music. In: Serra X, Rao P, Murthy H, Bozkurt B, editors. Proceedings of the 2nd CompMusic Workshop; 2012 Jul 12-13; Istanbul, Turkey. Barcelona: Universitat Pompeu Fabra; 2012. p. 153-157
http://hdl.handle.net/10230/20366
A raga is a collective melodic expression consisting of motifs. A raga can be identified using motifs which are/nunique to it. Motifs can be thought of as signature prosodic phrases. Different ragas may be composed of the same set/nof notes, or even phrases, but the prosody may be completely different. In this paper, an attempt is made to determine/nthe characteristic motifs that enable identification of a raga and distinguish between them. To determine this, motifs are first manually marked for a set of five popular raga by a professional musician. The motifs are then normalised/nwith respect to the tonic. HMMs are trained for each motif using 80% of the data and about 20% are used for testing. The results do indicate that about 80% of the motifs are identified as belonging to a specific raga accurately.
eng
© 2012 Vignesh Ishwar et al. This is an open-access article distributed/nunder the terms of the Creative Commons Attribution 3.0 Unported License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Motivic analysis and its relevance to raga identification in carnatic music
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20366/1/ishwar_compmusic_2012.pdf
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oai:repositori.upf.edu:10230/203672018-01-24T08:29:50Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Vidwans, Amruta
author
Ganguli, Kaustuv Kanti
author
Rao, Preeti
2013-02-13T10:45:19Z
2013-02-13T10:45:19Z
2012
Vidwans A, Ganguli KK, Rao P. Classification of indian classical vocal styles from melodic contours. In: Serra X, Rao P, Murthy H, Bozkurt B, editors. Proceedings of the 2nd CompMusic Workshop; 2012 Jul 12-13; Istanbul, Turkey. Barcelona: Universitat Pompeu Fabra; 2012. p. 139-146
http://hdl.handle.net/10230/20367
A prominent categorization of Indian classical music is the Hindustani and Carnatic traditions, the two styles/nhaving evolved under distinctly different historical and/ncultural influences. Both styles are grounded in the melodic/nand rhythmic framework of raga and tala. The styles differ along dimensions such as instrumentation,/naesthetics and voice production. In particular, Carnatic music is perceived as being more ornamented. The hypothesis/nthat style distinctions are embedded in the melodic contour is validated via subjective classification tests. Melodic features representing the distinctive characteristics/nare extracted from the audio. Previous work based on the extent of stable pitch regions is supported by measurements of musicians’ annotations of stable notes. Further, a new feature is introduced that captures the/npresence of specific pitch modulations characteristic of/nornamentation in Indian classical music. The combined features show high classification accuracy on a database of vocal music of prominent artistes. The misclassifications are seen to match actual listener confusions.
eng
© 2012 Amruta Vidwans et al. This is an open-access article/ndistributed under the terms of the Creative Commons Attribution License/n3.0 Unported, which permits unrestricted use, distribution, and reproduction/nin any medium, provided the original author and source are credited.
Classification of indian classical vocal styles from melodic contours
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20367/1/vidwans_compmusic_2012.pdf
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oai:repositori.upf.edu:10230/203682018-01-24T08:29:57Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Ross, Joe Cheri
author
Rao, Preeti
2013-02-13T10:45:21Z
2013-02-13T10:45:21Z
2012
Ross JC, Rao P. Detection of Raga-characteristic phrases from Hindustani Classical Music Audio. In: Serra X, Rao P, Murthy H, Bozkurt B, editors. Proceedings of the 2nd CompMusic Workshop; 2012 Jul 12-13; Istanbul, Turkey. Barcelona: Universitat Pompeu Fabra; 2012. p. 133-138
http://hdl.handle.net/10230/20368
Melodic motifs form essential building blocks in Indian Classical music. The motifs, or key phrases, provide/nstrong cues to the identity of the underlying raga in both Hindustani and Carnatic styles of Indian music. Automatic identification and clustering of similar motifs is relevant in this context. The inherent variations in various instances of a characteristic phrase in a bandish (composition)/nperformance make it challenging to identify similar phrases in a performance. A nyas svara (long note)/nmarks the ending of these phrases. The proposed method does segmentation of phrases through identification of/nnyas and computes similarity with the reference characteristic phrase.
eng
© 2012 Joe Cheri Ross et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Detection of Raga-characteristic phrases from Hindustani Classical Music Audio
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20368/1/ross_compmusic_2012.pdf
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oai:repositori.upf.edu:10230/203692018-01-24T08:30:06Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Koduri, Gopala Krishna
author
Serrà Julià, Joan
author
Serra, Xavier
other
Universitat Pompeu Fabra
2013-02-13T10:45:23Z
2013-02-13T10:45:23Z
2012
Koduri GK, Serrà J, Serra X. Characterization of intonation in Karṇāṭaka music by parametrizing context-based Svara Distributions. In: Serra X, Rao P, Murthy H, Bozkurt B, editors. Proceedings of the 2nd CompMusic Workshop; 2012 Jul 12-13; Istanbul, Turkey. Barcelona: Universitat Pompeu Fabra; 2012. p. 128-132
http://hdl.handle.net/10230/20369
Intonation is a fundamental music concept that has a special relevance in Indian art music. It is characteristic of the rāga and intrinsic to the musical expression of the performer. Describing intonation is of importance to several information retrieval tasks like the development of rāga and artist similarity measures. In our previous work, we proposed a compact representation of intonation based on the parametrization of the pitch histogram of a performance and demonstrated the usefulness of this representation through an explorative rāga recognition task in which we classified 42 vocal performances belonging to 3 rāgas using parameters of a single svara. In this paper, we extend this representation to employ context-based svara distributions, which are obtained with a different approach to find the pitches belonging to each svara. We quantitatively compare this method to our previous one, discuss the advantages, and the necessary melodic analysis to be carried out in future.
eng
© 2012 Gopala Krishna Koduri et al. This is an open-access article distributed under the terms of the Creative Commons Attribution 3.0 Unported License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Characterization of intonation in Karṇāṭaka music by parametrizing context-based Svara Distributions
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20369/1/koduri_Compmusic_2012.pdf
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oai:repositori.upf.edu:10230/203702018-01-24T08:30:08Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Gulati, Sankalp
author
Salamon, Justin
author
Serra, Xavier
other
Universitat Pompeu Fabra
2013-02-13T10:45:26Z
2013-02-13T10:45:26Z
2012
Gulati S, Salamon J, Serra X. A two-stage approach for tonic identification in indian art music. In: Serra X, Rao P, Murthy H, Bozkurt B, editors. Proceedings of the 2nd CompMusic Workshop; 2012 Jul 12-13; Istanbul, Turkey. Barcelona: Universitat Pompeu Fabra; 2012. p. 119-127
http://hdl.handle.net/10230/20370
In this paper we propose a new approach for tonic identification in Indian art music and present a proposal for a/ncomplete iterative system for the same. Our method splits the task of tonic pitch identification into two stages. In the first stage, which is applicable to both vocal and instrumental music, we perform a multi-pitch analysis of the audio signal to identify the tonic pitch-class. Multi-pitch analysis/nallows us to take advantage of the drone sound, which constantly/nreinforces the tonic. In the second stage we estimate the octave in which the tonic of the singer lies and is thus/nneeded only for the vocal performances. We analyse the predominant melody sung by the lead performer in order to establish the tonic octave. Both stages are individually evaluated on a sizable music collection and are shown to/nobtain a good accuracy. We also discuss the types of errors made by the method./nFurther, we present a proposal for a system that aims to incrementally utilize all the available data, both audio and metadata in order to identify the tonic pitch. It produces a tonic estimate and a confidence value, and is iterative in nature. At each iteration, more data is fed into the system/nuntil the confidence value for the identified tonic is above a defined threshold. Rather than obtain high overall accuracy for our complete database, ultimately our goal is to develop a system which obtains very high accuracy on a subset of the database with maximum confidence.
eng
© 2012 Sankalp Gulati et al. This is an open-access article distributed/nunder the terms of the Creative Commons Attribution 3.0 Unported License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
A two-stage approach for tonic identification in indian art music
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20370/1/Gulati_Compmusic_2012.pdf
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oai:repositori.upf.edu:10230/204232018-01-24T08:29:25Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Bellur, Ashwin
author
Ishwar, Vignesh
author
Serra, Xavier
author
Murthy, Hema A.
other
Universitat Pompeu Fabra
2013-02-26T12:51:18Z
2013-02-26T12:51:18Z
2012
Bellur A, Ishwar V, Serra X, Murthy H. A Knowledge based signal processing approach to tonic identification in indian classical music. In: Serra X, Rao P, Murthy H, Bozkurt B, editors. Proceedings of the 2nd CompMusic Workshop; 2012 Jul 12-13; Istanbul, Turkey. Barcelona: Universitat Pompeu Fabra; 2012. p. 113-118
http://hdl.handle.net/10230/20423
In this paper, we describe several techniques for detecting tonic pitch value in Indian classical music. In Indian music, the raga is the basic melodic framework and it is built on the tonic. Tonic detection is therefore fundamental for any melodic analysis in Indian classical music. This work/nexplores detection of tonic by processing the pitch histograms of Indian classic music. Processing of pitch histograms using group delay functions and its ability to amplify certain traits of Indian music in the pitch histogram, is discussed. Three different strategies to detect tonic, namely, the concert method, the template matching and segmented histogram method are proposed. The concert method exploits the fact that the tonic is constant over a piece/concert./ntemplatematchingmethod and segmented histogrammethods/nuse the properties: (i) the tonic is always present in the background, (ii) some notes are less inflected and dominant, to detect the tonic of individual pieces. All the three methods yield good results for Carnatic music (90−100% accuracy), while for Hindustanimusic, the templatemethod works best, provided the v¯adi samv¯adi notes for a given piece are known (85%).
eng
© 2012 Ashwin Bellur et al. This is an open-access article distributed/nunder the terms of the Creative Commons Attribution 3.0 Unported License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
A knowledge based signal processing approach to tonic identification in indian classical music
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20423/1/bellur_Compmusic_2012.pdf
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oai:repositori.upf.edu:10230/204242018-01-24T08:29:49Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Sentürk, Sertan
author
Holzapfel, Andre
author
Serra, Xavier
other
Universitat Pompeu Fabra
2013-02-26T12:51:20Z
2013-02-26T12:51:20Z
2012
Şentürk S, Holzapfel A, Serra X. An Approach for linking score and audio recordings in Makam music of Turkey. In: Serra X, Rao P, Murthy H, Bozkurt B, editors. Proceedings of the 2nd CompMusic Workshop; 2012 Jul 12-13; Istanbul, Turkey. Barcelona: Universitat Pompeu Fabra; 2012. p. 95-106.
http://hdl.handle.net/10230/20424
The main information sources to study a particular piece of music are symbolic scores and audio recordings. These are complementary representations of the piece and it is/nvery useful to have a proper linking between the two of the musically meaningful events. For the case of makam music of Turkey, linking the available scores with the corresponding/naudio recordings requires taking the specificities of this music into account, such as the particular tunings, the extensive usage of non-notated expressive elements, and the way in which the performer repeats fragments/nof the score. Moreover, for most of the pieces of the classical repertoire, there is no score written by the original composer. In this paper, we propose a methodology to pair sections of a score to the corresponding fragments of audio recording performances. The pitch information obtained from both sources is used as the common representation/nto be paired. From an audio recording, fundamental frequency estimation and tuning analysis is done to compute a pitch contour. From the corresponding score, symbolic note names and durations are converted to a synthetic/npitch contour. Then, a linking operation is performed between these pitch contours in order to find the best correspondences./nThe method is tested on a dataset of 11 compositions spanning 44 audio recordings, which are mostly monophonic. An F3-score of 82% and 89% are obtained with automatic and semi-automatic karar detection respectively,/nshowing that the methodology may give us a needed tool for further computational tasks such as form analysis, audio-score alignment and makam recognition.
eng
© 2012 Sertan Sentürk et al. This is an open-access article distributed/nunder the terms of the Creative Commons Attribution 3.0 Unported License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
An approach for linking score and audio recordings in Makam music of Turkey
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20424/3/senturk_CompMusic_2012.pdf
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oai:repositori.upf.edu:10230/204252018-02-06T11:03:23Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Özaslan, Tan Hakan
author
Serra, Xavier
author
Arcos, Josep Lluís
2013-02-26T12:51:22Z
2013-02-26T12:51:22Z
2012
Özaslan T, Serra X, Arcos JL. Signal analysis of Ney performances. In: Serra X, Rao P, Murthy H, Bozkurt B, editors. Proceedings of the 2nd CompMusic Workshop; 2012 Jul 12-13; Istanbul, Turkey. Barcelona: Universitat Pompeu Fabra; 2012. p. 93-94
http://hdl.handle.net/10230/20425
Ney is an end-blown flute which is mainly used for Makam music. Although from the beginning of 20th century a score representation based on extending the Western music/nis used, because of its rich articulation repertoire, actual/nNey music can not be totally represented by written score./nNey is still taught and transmitted orally in Turkey. Because/nof that the performance has a distinct and important/nrole in Ney music. Therefore signal analysis of ney performances/nis crucial for understanding the actual music./nAnother important aspect which is also a part of the performance/nis the articulations that performers apply. In Makam music in Turkey none of the articulations are taught even/nnamed by teachers. Articulations in Ney are valuable for understanding the real performance. Since articulations are not taught and their places are not marked in the score, the choice and character of the articulation is unique for each/nperformer which also makes each performance unique./nOur method analyzes audio files of well known Turkish Ney players. In order to obtain our analysis data, we analyzed audio files of 8 different performers vary from 1920/nto 2000.
eng
© 2012 Tan H. Özaslan et al. This is an open-access article distributed/nunder the terms of the Creative Commons Attribution 3.0 Unported License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Signal analysis of Ney performances
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20425/3/Ozaslan_CompMusic_2012.pdf
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oai:repositori.upf.edu:10230/204262018-01-24T08:30:07Zcom_10230_5542com_10230_5922col_10230_8581col_10230_16116
Repositori digital de la UPF
author
Holzapfel, Andre
author
Bozkurt, Baris
2013-02-26T12:51:24Z
2013-02-26T12:51:24Z
2012
Holzapfel A, Bozkurt B. Metrical strength and contradiction in turkish Makam music. In: Serra X, Rao P, Murthy H, Bozkurt B, editors. Proceedings of the 2nd CompMusic Workshop; 2012 Jul 12-13; Istanbul, Turkey. Barcelona: Universitat Pompeu Fabra; 2012. p. 79-84
http://hdl.handle.net/10230/20426
In this paper we investigate how note onsets in Turkish Makam music compositions are distributed, and in how far this distribution supports or contradicts the metrical structure of the pieces, the usul. We use MIDI data to derive the distributions in the form of onset histograms, and compare/nthem with metrical weights that are applied to describe the usul in theory. We compute correlation and syncopation values to estimate the degrees of support and contradiction, respectively. While the concept of syncopation is rarely/nmentioned in the context of this music, we can gain interesting insight into the structure of a piece using such a measure./nWe show that metrical contradiction is systematically applied in some metrical structures. We will compare the/ndifferences between Western music and Turkish Makam music regarding metrical support and contradiction. Such a study can help avoiding pitfalls in later attempts to perform audio processing tasks such as beat tracking or rhythmic similarity measurements.
eng
© 2012 Andre Holzapfel et al. This is an open-access article distributed/nunder the terms of the Creative Commons Attribution 3.0 Unported License, which/npermits unrestricted use, distribution, and reproduction in any medium, provided/nthe original author and source are credited.
Metrical strength and contradiction in turkish Makam music
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20426/3/Holzapfel_CompMusic_2012.pdf
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oai:repositori.upf.edu:10230/204272018-01-24T08:23:28Zcom_10230_5542com_10230_5922col_10230_8581col_10230_16116
Repositori digital de la UPF
author
Bozkurt, Baris
2013-02-26T12:51:26Z
2013-02-26T12:51:26Z
2012
Bozkurt B. Features for analysis of Makam music. In: Serra X, Rao P, Murthy H, Bozkurt B, editors. Proceedings of the 2nd CompMusic Workshop; 2012 Jul 12-13; Istanbul, Turkey. Barcelona: Universitat Pompeu Fabra; 2012. p. 61-65
http://hdl.handle.net/10230/20427
For computational studies of makam music, it is essential to gather a list of characteristics that constitute a makam and explore corresponding quantitative features for automatic/nanalysis. This study is such an attempt where we address the characteristics for makams as defined in theory books and deduce a list of quantitative features. The target here is to evoke discussions on some measurable features other than providing complete analysis on the/ndiscriminative potentials of each proposed feature which could be the subject of a few larger studies.
eng
© 2012 Baris Bozkurt. This is an open-access article distributed/nunder the terms of the Creative Commons Attribution License/n3.0 Unported, which permits unrestricted use, distribution, and reproduction/nin any medium, provided the original author and source are/ncredited.
Features for analysis of Makam music
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20427/3/Bozkurt_CompMusic_2012.pdf
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MD5
79825a2732686ce0518eb2a2c67f4b88
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URL
http://repositori.upf.edu/bitstream/10230/20427/4/Bozkurt_CompMusic_2012.pdf.txt
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oai:repositori.upf.edu:10230/204742018-01-24T08:20:33Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Lozano Solsona, Angel
2013-03-11T10:58:58Z
2013-03-11T10:58:58Z
2008
Lozano A. Spectral efficiency in reference-signal-assisted low-power wireless communication. In: 2008 IEEE International Conference on Communications (ICC '08); 2008 May 19-23; Beijing, China. [S.l.]: IEEE; c2008. p.1277-1281. DOI 10.1109/ICC.2008.248
978-1-4244-2075-9
http://hdl.handle.net/10230/20474
http://dx.doi.org/10.1109/ICC.2008.248
Expressions relating spectral efficiency, power and Doppler spectrum are derived for low-power Rayleighfaded wireless channels with proper complex signaling. No/nside information on the state of the channel is assumed at the receiver. Rather, periodic reference signals are postulated in/naccordance with the functioning of most wireless systems. In contrast with most previous studies, which relied on block-fading channel models, a continuous-fading model is adopted. This embeds the Doppler spectrum directly in the/nderived expressions thereby imbuing them with practical significance.
eng
© 2008 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4533284
Spectral efficiency in reference-signal-assisted low-power wireless communication
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20474/1/Lozano_iinterconfcom_1.pdf
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MD5
866ec894fc28956105b851d64666f0d9
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Lozano_iinterconfcom_1.pdf
URL
http://repositori.upf.edu/bitstream/10230/20474/2/Lozano_iinterconfcom_1.pdf.txt
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oai:repositori.upf.edu:10230/204752018-01-24T08:33:02Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Sridharan, Sriram
author
Lozano Solsona, Angel
author
Viswanathan, Harish
author
Vishwanath, Sriram
2013-03-11T10:59:00Z
2013-03-11T10:59:00Z
2008
Sridharan S, Lozano A, Viswanathan H, Vishwanath S. Capacity to within one bit of a class of Gaussian multicast channels with interference. In: 2008 IEEE Information Theory Workshop (ITW '08); 2008 May 5-9; Porto, Portugal. [S.l.]: IEEE; c2008. p.16-20. DOI 10.1109/ITW.2008.4578613
978-1-4244-2271-5
http://hdl.handle.net/10230/20475
http://dx.doi.org/10.1109/ITW.2008.4578613
This paper studies the fundamental operational limits of a class of Gaussian multicast channels with an interference setting. In particular, the paper considers two base stations multicasting separate messages to distinct sets of users. In the presence of channel state information at the transmitters and at the respective receivers, the capacity region of the Gaussian multicast channel with interference is characterized to within one bit. At the crux of this result is an extension to the multicast channel with interference of the Han-Kobayashi or the Chong-Motani-Garg achievable region for the interference channel.
eng
© 2008 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4578613
Capacity to within one bit of a class of Gaussian multicast channels with interference
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20475/1/Sridharan_iinfotheowork_1.pdf
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http://repositori.upf.edu/bitstream/10230/20475/2/Sridharan_iinfotheowork_1.pdf.txt
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oai:repositori.upf.edu:10230/204762018-01-24T08:01:26Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Angelosante, Daniele
author
Biglieri, Ezio
author
Lops, Marco
other
Universitat Pompeu Fabra
2013-03-11T10:59:03Z
2013-03-11T10:59:03Z
2008
Angelosante D, Biglieri E, Lops M. Some applications of FISST to wireless communications. In: Proceedings of the 11th International Conference on Information Fusion; 2008 Jun 30-Jul 03; Cologne, Germany. [S.l.]: IEEE; c2008. 5 fulls.
978-3-00-024883-2
http://hdl.handle.net/10230/20476
This paper aims at illustrating some applications of Finite Random Set (FRS) theory to the design and analysis of wireless communication receivers, and at pointing out similarities and differences between this scenario and that pertaining to multi-target tracking, where the use of FRS has been traditionally advocated. Two case studies are considered, l.e., multiuser detection in a dynamic environment, and multicarrier (OFDM) transmission on a frequency-selective channel. Detector design/nand performance evaluation are discussed, along with the advantages of importing FRS-based estimation techniques to the context of wireless communications.
eng
© 2008 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4632442&tag=1
Some applications of FISST to wireless communications
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20476/1/Angelosante_iconfinfofus_1.pdf
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http://repositori.upf.edu/bitstream/10230/20476/2/Angelosante_iconfinfofus_1.pdf.txt
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oai:repositori.upf.edu:10230/204772020-04-16T09:51:01Zcom_10230_5542com_10230_5922col_10230_8581col_10230_16116
Repositori digital de la UPF
author
Angelosante, Daniele
author
Biglieri, Ezio
author
Lops, Marco
2013-03-11T10:59:05Z
2013-03-11T10:59:05Z
2008
Angelosante D, Biglieri E, Lops M. Sequential estimation of time-varying multipath channel for MIMO-OFDM systems. In: Proceedings of the 2008 IEEE International Symposium on Information Theory (ISIT '08); 2008 Jul 6-11; Toronto, Ontario, Canada. [New York]: IEEE; c2008. p.589-593. DOI 10.1109/ISIT.2008.4595054
0271-4655
http://hdl.handle.net/10230/20477
http://dx.doi.org/10.1109/ISIT.2008.4595054
In this paper, we introduce a pilot-aided multipath channel estimator for Multiple-Input Multiple-Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) systems. Typical estimation algorithms assume the number of multipath components and delays to be known and constant, while their/namplitudes may vary in time. In this work, we focus on the more realistic assumption that also the number of channel taps is unknown and time-varying. The estimation problem arising from this assumption is solved using Random Set Theory (RST), which is a probability theory of finite sets. Due to the lack of a closed form of the optimal filter, a Rao-Blackwellized Particle Filter (RBPF) implementation of the channel estimator is derived. Simulation results demonstrate the estimator effectiveness.
eng
© 2008 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4595054
Sequential estimation of time-varying multipath channel for MIMO-OFDM systems
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20477/1/Angelosante_isit08_1.pdf
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oai:repositori.upf.edu:10230/204782023-07-03T10:19:16Zcom_10230_5542com_10230_5922col_10230_8581col_10230_16116
Repositori digital de la UPF
author
Biglieri, Ezio
author
Grossi, Emanuele
author
Lops, Marco
author
Tauste Campo, Adrià, 1982-
2013-03-11T10:59:07Z
2013-03-11T10:59:07Z
2008
Biglieri E, Grossi E, Lops M, Tauste-Campo A. Large-system analysis of a CDMA dynamic channel under a Markovian input process. In: Proceedings of the 2008 IEEE International Symposium on Information Theory (ISIT '08); 2008 Jul 6-11; Toronto, Ontario, Canada. [New York]: IEEE; c2008. p.1793-1797. DOI 10.1109/ISIT.2008.4595297
0271-4655
http://hdl.handle.net/10230/20478
http://dx.doi.org/10.1109/ISIT.2008.4595297
We study the minimum mean square error (MMSE) and the multiuser efficiency η of large dynamic multiple access communication systems in which optimal multiuser detection is performed at the receiver as the number and the identities of active users is allowed to change at each transmission time. The system dynamics are ruled by a Markov model describing the evolution of the channel occupancy and a large-system analysis is performed when the number of observations grow large. Starting on the equivalent scalar channel and the fixed-point equation tying multiuser efficiency and MMSE, we extend it to the case of a dynamic channel, and derive lower and upper bounds for the MMSE (and, thus, for η as well) holding true in the limit of large signal–to–noise ratios and increasingly large observation time T.
eng
© 2008 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4595297
Large-system analysis of a CDMA dynamic channel under a Markovian input process
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20478/1/Biglieri_isit08_2.pdf
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oai:repositori.upf.edu:10230/204892018-01-24T08:21:40Zcom_10230_5542com_10230_5922col_10230_8581col_10230_16116
Repositori digital de la UPF
author
Sarala, Padi
author
Ishwar, Vignesh
author
Bellur, Ashwin
author
Murthy, Hema A.
other
Universitat Pompeu Fabra
2013-03-13T09:37:50Z
2013-03-13T09:37:50Z
2012
Sarala P, Ishwar V, Bellur A, Murthy H. Applause identification and its relevance to archival of Carnatic music. In: Serra X, Rao P, Murthy H, Bozkurt B, editors. Proceedings of the 2nd CompMusic Workshop; 2012 Jul 12-13; Istanbul, Turkey. Barcelona: Universitat Pompeu Fabra; 2012. p. 66-71.
http://hdl.handle.net/10230/20489
A Carnatic music concert is made up of a sequence of pieces, where each piece corresponds to a particular genre and ra¯aga (melody). Unlike a western music concert, the artist may be applauded intra-performance /ninter-performance. Most Carnatic music that is archived today correspond to a single audio recordings of entire concerts./nThe purpose of this paper is to segment single audio recordings into a sequence of pieces using the/ncharacteristic features of applause and music. Spectral flux, spectral entropy change quite significantly from music to applause and vice-versa. The characteristics of these features for a subset of concerts was studied. A threshold based approach was used to segment the pieces into music fragments and applauses. Preliminary results/non recordings 19 concerts from matched microphones show that the EER is about 17% for a resolution of 0.25 seconds. Further, a parameter called CUSUM is estimated/nfor the applause regions. The CUSUM values determine the strength of the applause. The CUSUM is used to characterise the highlights of a concert.
eng
© 2012 Padi Sarala and Vignesh Ishwar et al. This/nis an open-access article distributed under the terms of the/nCreative Commons Attribution 3.0 Unported License, which permits unrestricted/nuse, distribution, and reproduction in any medium, provided the original author/nand source are credited.
Applause identification and its relevance to archival of Carnatic music
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20489/1/sarala_Compmusic_2012.pdf
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oai:repositori.upf.edu:10230/204902018-01-24T08:22:30Zcom_10230_5542com_10230_5922col_10230_8581col_10230_16116
Repositori digital de la UPF
author
Sordo, Mohamed
author
Serrà Julià, Joan
author
Koduri, Gopala Krishna
author
Serra, Xavier
other
Universitat Pompeu Fabra
2013-03-13T09:37:52Z
2013-03-13T09:37:52Z
2012
Sordo M, Serrà J, Koduri GK, Serra X. A method for extracting semantic information from on-line art music discussion forums. In: Serra X, Rao P, Murthy H, Bozkurt B, editors. Proceedings of the 2nd CompMusic Workshop; 2012 Jul 12-13; Istanbul, Turkey. Barcelona: Universitat Pompeu Fabra; 2012. p. 55-60.
http://hdl.handle.net/10230/20490
In this paper a method for extracting semantic information/nfrom online music discussion forums is proposed. The semantic relations are inferred from the co-occurrence of musical concepts in forum posts, using network analysis. The method starts by defining a dictionary of common music terms in an art music tradition. Then, it creates a complex network representation of the online forum by matching/nsuch dictionary against the forum posts. Once the complex network is built we can study different network measures, including node relevance, node co-occurrence and/nterm relations via semantically connecting words. Moreover, we can detect communities of concepts inside the forum posts. The rationale is that some music terms are more related to each other than to other terms. All in all, this methodology allows us to obtain meaningful and relevant/ninformation from forum discussions.
eng
© 2012 Mohamed Sordo et al. This is an open-access article distributed/nunder the terms of the Creative Commons Attribution 3.0 Unported License/n, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
A method for extracting semantic information from on-line art music discussion forums
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20490/1/Sordo_CompMusic_2012.pdf
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oai:repositori.upf.edu:10230/204912021-11-23T13:25:54Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Font Corbera, Frederic
author
Serra, Xavier
2013-03-13T09:37:54Z
2013-03-13T09:37:54Z
2012
Font F, Serra X. Analysis of the folksonomy of freesound. In: Serra X, Rao P, Murthy H, Bozkurt B, editors. Proceedings of the 2nd CompMusic Workshop; 2012 Jul 12-13; Istanbul, Turkey. Barcelona: Universitat Pompeu Fabra; 2012. p. 48-54.
http://hdl.handle.net/10230/20491
User generated content shared in online communities is often described using collaborative tagging systems where users assign labels to content resources. As a result, a folksonomy emerges that relates a number of tags with the resources they label and the users that have used them. In this paper we analyze the folksonomy of Freesound, an online audio clip sharing site which contains more than two million users and 150,000 user-contributed sound samples/ncovering a wide variety of sounds. By following methodologies taken from similar studies, we compute some metrics that characterize the folksonomy both at the global/nlevel and at the tag level. In this manner, we are able to better/nunderstand the behavior of the folksonomy as a whole, and also obtain some indicators that can be used as metadata for describing tags themselves. We expect that such a methodology for characterizing folksonomies can be useful to support processes such as tag recommendation or automatic annotation of online resources.
eng
© 2012 Frederic Font et al. This is an open-access article distributed/nunder the terms of the Creative Commons Attribution 3.0 Unported License/n, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Analysis of the folksonomy of freesound
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20491/1/Font-CompMusic-2012.pdf
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oai:repositori.upf.edu:10230/204922018-01-24T08:23:06Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Ünal, Erdem
author
Bozkurt, Baris
author
Karaosmanoğlu, M. Kemal
2013-03-13T09:37:57Z
2013-03-13T09:37:57Z
2012
Ünal E, Bozkurt B, Karaosmanoğlu MK. Incorporating features of distribution and progression for automatic Makam classification. In: Serra X, Rao P, Murthy H, Bozkurt B, editors. Proceedings of the 2nd CompMusic Workshop; 2012 Jul 12-13; Istanbul, Turkey. Barcelona: Universitat Pompeu Fabra; 2012. p. 43-47.
http://hdl.handle.net/10230/20492
Automatic classification of makams from symbolic data is a rarely studied topic. In this paper, first a review of an n-gram based approach is presented using various representations of the symbolic data. While a high degree of precision can be obtained, confusion happens mainly for makams using (almost) the same scale and pitch hierarchy but differ in overall melodic progression, seyir. To further improve the system, first n-gram based classification is tested for various sections of the piece to take into account a feature of the seyir that melodic progression starts in a certain region of the scale. In a second test, a hierarchical classification structure is designed which uses n-grams and seyir features in different levels to further improve the system.
eng
© 2012 E. Unal et al. This is an open-access article distributed/nunder the terms of the Creative Commons Attribution License/n3.0 Unported, which permits unrestricted use, distribution, and reproduction/nin any medium, provided the original author and source are/ncredited.
Incorporating features of distribution and progression for automatic Makam classification
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20492/1/Unal_CompMusic_2012.pdf
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oai:repositori.upf.edu:10230/204932018-01-24T08:23:33Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Sordo, Mohamed
author
Koduri, Gopala Krishna
author
Sentürk, Sertan
author
Gulati, Sankalp
author
Serra, Xavier
other
Universitat Pompeu Fabra
2013-03-13T09:37:59Z
2013-03-13T09:37:59Z
2012
Sordo M, Koduri GK, Şentürk S, Gulati S, Serra X. A Musically aware system for browsing and interacting with audio music collections. In: Serra X, Rao P, Murthy H, Bozkurt B, editors. Proceedings of the 2nd CompMusic Workshop; 2012 Jul 12-13; Istanbul, Turkey. Barcelona: Universitat Pompeu Fabra; 2012. p. 20-24.
http://hdl.handle.net/10230/20493
In the context of the CompMusic project we are developing methods to automatically describe/annotate audio music recordings pertaining to various music cultures. As a/nway to demonstrate the usefulness of the methods we are also developing a system to browse and interact with specific audio collections. The system is an online web application that interfaces with all the data gathered (audio, scores plus contextual information) and all the descriptions that are automatically generated with the developed methods. In this paper we present the basic architecture of the proposed system, the types of data sources that it includes,/nand we mention some of the culture specific issues that we are working on for its development. The system is in a preliminary stage but it shows the potential that MIR technologies can have in browsing and interacting with music/ncollections of various cultures.
eng
© 2012 Mohamed Sordo, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution 3.0 Unported License/n, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
A Musically aware system for browsing and interacting with audio music collections
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20493/1/Sordo_CompMusic_2012_2.pdf
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oai:repositori.upf.edu:10230/204942018-01-24T08:23:59Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Krishna, T. M.
author
Ishwar, Vignesh
2013-03-13T09:38:01Z
2013-03-13T09:38:01Z
2012
Krishna TM, IshwarV. Carnatic music: Svara, Gamaka, Motif and Raga identity. In: Serra X, Rao P, Murthy H, Bozkurt B, editors. Proceedings of the 2nd CompMusic Workshop; 2012 Jul 12-13; Istanbul, Turkey. Barcelona: Universitat Pompeu Fabra; 2012. p. 12-18.
http://hdl.handle.net/10230/20494
Over the last century in Karnatik music, the method of/nunderstanding raga has been to break it down into its various/ncomponents, svara, scale, gamaka, and phrases. In this paper, an attempt is made to define the abstract concept of raga in its entirety within the aesthetics of Karnatik music considering the various components and their symbiotic relationship. This paper also attempts to prove that the/nidentity of a raga exists as a whole. Section 2 explains the/nconcept of a fundamental musical note or svara. Section 3 illustrates the concept of gamaka or inflections. Section 4 delves into the concept of raga in detail and then flows into Section 5 which enunciates the identity of a raga in terms of svara, gamaka, and phraseology. The paper concludes in Section 6, and Section 7 gives the references.
eng
© 2012 T. M. Krishna et al. This is an open-access article distributed/nunder the terms of the Creative Commons Attribution 3.0 Unported License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Carnatic music: Svara, Gamaka, Motif and Raga identity
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20494/1/Krishna_CompMusic_2012.pdf
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oai:repositori.upf.edu:10230/204952018-01-24T08:24:02Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Serra, Xavier
other
Universitat Pompeu Fabra
2013-03-13T09:38:04Z
2013-03-13T09:38:04Z
2012
Serra X. Opportunities for a cultural specific approach in the computational description of music. In: Serra X, Rao P, Murthy H, Bozkurt B, editors. Proceedings of the 2nd CompMusic Workshop; 2012 Jul 12-13; Istanbul, Turkey. Barcelona: Universitat Pompeu Fabra; 2012. p. 1-4.
http://hdl.handle.net/10230/20495
The current research in Music Information Retrieval (MIR) is showing the potential that the Information Technologies can have in music related applications. A/nmajor research challenge in that direction is how to automatically/ndescribe/annotate audio recordings and how to use the resulting descriptions to discover and appreciate music in new ways. But music is a complex phenomenon/nand the description of an audio recording has to deal with this complexity. For example, each music/nculture has specificities and emphasizes different musical/nand communication aspects, thus the musical recordings of each culture should be described differently. At the same time these cultural specificities give us the opportunity to pay attention to musical concepts and/nfacets that, despite being present in most world musics, are not easily noticed by listeners. In this paper we present some of the work done in the CompMusic project, including ideas and specific examples on how to take advantage of the cultural specificities of different/nmusical repertoires. We will use examples from the art music traditions of India, Turkey and China.
eng
© 2012 Xavier Serra. This is an open access article distributed under the terms of the Creative Commons Attribution License 3.0/nUnported, which permits unrestricted use, distribution, and reproduction/nin any medium, provided the original author and source are credited.
Opportunities for a cultural specific approach in the computational description of music
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20495/1/Serra_CompMusic_2012.pdf
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oai:repositori.upf.edu:10230/204962023-07-06T07:10:46Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Boutros, Joseph Jean
author
Zémor, Gilles
author
Guillén i Fábregas, A. (Albert)
author
Biglieri, Ezio
other
Universitat Pompeu Fabra
2013-03-14T11:45:23Z
2013-03-14T11:45:23Z
2008
Boutros JJ, Zémor G, Guillén-Fàbregas A, Biglieri E. Generalized low-density codes with BCH constituents for full-diversity near-outage performance. In: Proceedings of the 2008 IEEE International Symposium on Information Theory (ISIT '08); 2008 Jul 6-11; Toronto, Ontario, Canada. [New York]: IEEE; c2008. p.787-791. DOI 10.1109/ISIT.2008.4595094
0271-4655
http://hdl.handle.net/10230/20496
http://dx.doi.org/10.1109/ISIT.2008.4595094
A new graph-based construction of generalized low density codes (GLD-Tanner) with binary BCH constituents is described. The proposed family of GLD codes is optimal on block erasure channels and quasi-optimal on block fading channels. Optimality is considered in the outage probability sense. A/nclassical GLD code for ergodic channels (e.g., the AWGN channel,/nthe i.i.d. Rayleigh fading channel, and the i.i.d. binary erasure channel) is built by connecting bitnodes and subcode nodes via a unique random edge permutation. In the proposed construction of full-diversity GLD codes (referred to as root GLD), bitnodes are divided into 4 classes, subcodes are divided into 2 classes, and finally both sides of the Tanner graph are linked via 4 random edge permutations. The study focuses on non-ergodic channels with two states and can be easily extended to channels with 3 states or more.
eng
© 2008 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4595094&tag=1
Generalized low-density codes with BCH constituents for full-diversity near-outage performance
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20496/1/Boutros_isit08_3.pdf
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oai:repositori.upf.edu:10230/204972023-07-06T07:10:32Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Boutros, Joseph Jean
author
Zémor, Gilles
author
Guillén i Fábregas, A. (Albert)
author
Biglieri, Ezio
other
Universitat Pompeu Fabra
2013-03-14T11:45:26Z
2013-03-14T11:45:26Z
2008
Boutros JJ, Zémor G, Guillén-Fàbregas A, Biglieri E. Full diversity product codes for block erasure and block fading channels. In: 2008 IEEE Information Theory Workshop (ITW '08); 2008 May 5-9; Porto, Portugal. [S.l.]: IEEE; c2008. p.313-317. DOI 10.1109/ITW.2008.4578676
978-1-4244-2271-5
http://hdl.handle.net/10230/20497
http://dx.doi.org/10.1109/ITW.2008.4578676
We show how to build full-diversity product codes under both iterative encoding and decoding over non-ergodic channels, in presence of block erasure and block fading. The concept of a rootcheck or a root subcode is introduced by generalizing the same principle recently invented for low-density parity-check codes. We also describe some channel related graphical properties of the new family of product codes, a family/nreferred to as root product codes.
eng
© 2008 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4578676
Full diversity product codes for block erasure and block fading channels
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20497/1/Boutros_itw08_1.pdf
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oai:repositori.upf.edu:10230/204982018-01-24T08:24:55Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Sezginer, Serdar
author
Sari, Hikmet
author
Biglieri, Ezio
other
Universitat Pompeu Fabra
2013-03-14T11:45:28Z
2013-03-14T11:45:28Z
2008
Sezginer S, Sari H, Biglieri E. A comparison of full-rate full-diversity 2x2 space-time codes for WiMAX systems. In: 2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications (ISSSTA '08); 2008 Aug 25-28; Bologna, Italy. [S.l.]: IEEE; c2008. p. 97-102. DOI 10.1109/ISSSTA.2008.24
978-1-4244-2203-6
http://hdl.handle.net/10230/20498
http://dx.doi.org/10.1109/ISSSTA.2008.24
Multiple-input multiple-output (MIMO) techniques have become an essential part of broadband wireless communications systems. For example, the recently developed IEEE 802.16e specifications for broadband wireless access include three MIMO/nprofiles employing 2×2 space-time codes (STCs), and two of these MIMO schemes are mandatory on the downlink of Mobile WiMAX systems. One of these has full rate, and the other has full diversity, but neither of them has both of the desired features. The third profile, namely, Matrix C, which is not mandatory, is both a full rate and a full diversity code, but it has a high decoder complexity. Recently, the attention was turned to the decoder/ncomplexity issue and including this in the design criteria, several full-rate STCs were proposed as alternatives to Matrix C. In this paper, we review these different alternatives and compare them to Matrix C in terms of performances and the corresponding/nreceiver complexities.
eng
© 2008 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4621383
A comparison of full-rate full-diversity 2x2 space-time codes for WiMAX systems
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20498/1/Sezginer_isssta08_1.pdf
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http://repositori.upf.edu/bitstream/10230/20498/2/Sezginer_isssta08_1.pdf.txt
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oai:repositori.upf.edu:10230/204992018-01-24T08:25:32Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Jindal, Nihar
author
Lozano Solsona, Angel
author
Marzetta, Thomas L.
2013-03-14T11:45:31Z
2013-03-14T11:45:31Z
2009
Jindal N, Lozano A, Marzetta TL. What is the value of joint processing of pilots and data in block-fading channels?. In: 2009 IEEE International Symposium on Information Theory (ISIT '09); 2009 Jun 28-Jul 3; Seoul, Korea. [S.l.]: IEEE; c2009. p. 2189-2193. DOI 10.1109/ISIT.2009.5205818
0271-4655
http://hdl.handle.net/10230/20499
http://dx.doi.org/10.1109/ISIT.2009.5205818
The spectral efficiency achievable with joint processing of pilot and data symbol observations is compared with that achievable through the conventional (separate) approach of first estimating the channel on the basis of the pilot symbols alone, and subsequently detecting the data/nsymbols. Studied on the basis of a mutual information lower bound, joint processing is found to provide a non-negligible advantage relative to separate processing, particularly for fast fading. It is shown that, regardless of the fading rate, only a very small number of pilot symbols (at most one per transmit antenna and per channel coherence interval) should/nbe transmitted if joint processing is allowed.
eng
© 2009 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5205818
What is the value of joint processing of pilots and data in block-fading channels?
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20499/1/Jindal_isit09_1.pdf
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oai:repositori.upf.edu:10230/205002020-04-17T07:09:32Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
García Armada, Ana
author
Hong, Li
author
Lozano Solsona, Angel
2013-03-14T11:45:33Z
2013-03-14T11:45:33Z
2009
García-Armada A, Hong L, Lozano A. Bit loading for MIMO with statistical channel information at the transmitter and ZF receivers. In: 2009 IEEE International Conference on Communications (ICC '09); 2009 Jun 14-18; Dresden, Germany. New York: IEEE; c2009. 5 fulls. DOI 10.1109/ICC.2009.5198786
1938-1883
http://hdl.handle.net/10230/20500
http://dx.doi.org/10.1109/ICC.2009.5198786
For single-user MIMO communication with uncoded and coded QAM signals, we propose bit and power loading schemes that rely only on channel distribution information at the transmitter. To that end, we develop the relationship between the average bit error probability at the output of a ZF linear receiver and the bit rates and powers allocated at the transmitter. This relationship, and the fact that a ZF receiver decouples the MIMO parallel channels, allow leveraging bit loading algorithms already existing in the literature. We solve dual bit rate maximization and power minimization problems and present performance results/nthat illustrate the gains of the proposed scheme with respect to/na non-optimized transmission.
eng
© 2009 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5198786
Bit loading for MIMO with statistical channel information at the transmitter and ZF receivers
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20500/1/GarciaArmada_icc09_1.pdf
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oai:repositori.upf.edu:10230/205012018-01-24T08:26:00Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Giustiniano, Domenico
author
Gomà Llairo, Eduard
author
Morillo Pozo, Julián
author
López Toledo, Alberto
author
Rodríguez, Pablo
2013-03-14T11:45:35Z
2013-03-14T11:45:35Z
2009
Giustiniano D, Gomà-Llairo E, Morillo-Pozo J, López-Toledo A, Rodríguez P. ClubADSL: When your neighbors are your friends. In: 2009 IEEE Symposium on Computers and Communications (ISCC '09); 2009 Jul 5-8; Sousse, Tunisia. [S.l.]: IEEE; c2009. p. 25-29. DOI 10.1109/ISCC.2009.5202389
1530-1346
http://hdl.handle.net/10230/20501
http://dx.doi.org/10.1109/ISCC.2009.5202389
ADSL is becoming the standard form of residential and small-business broadband Internet access due to, primarily, its low deployment cost. These ADSL residential lines are often deployed with 802.11 Access Points (AP) that provide/nwireless connectivity. Given the density of ADSL deployment, it is often possible for a residential wireless client to be in range of several other APs, belonging to neighbors, with ADSL connectivity. While the ADSL technology has showed evident limits in terms of capacity (with speeds ranging 1-10 Mbps), the short-range wireless communication can guarantee a much/nhigher capacity (up to 20 Mbps). Furthermore, the ADSL links in the neighborhood are generally under-utilized, since ADSL subscribers do not connect 100% of the time. Therefore, it is possible for a wireless client to simultaneously connect to several APs in range and effectively aggregate their available ADSL bandwidth./nIn this paper, we introduce ClubADSL, a wireless client that can simultaneously connect to several APs in range on different frequencies and aggregate both their downlink and uplink capacity. ClubADSL is a software that runs locally on the client-side, and it requires neither modification to the existing Internet infrastructure, nor any hardware/protocol upgrades/nto the 802.11 local area network. We show the feasibility of ClubADSL in seamlessly transmitting TCP traffic, and validate its implementation both in controlled scenarios and with current applications over real ADSL lines. In particular we show that a ClubADSL client can greatly benefit from the aggregated download bandwidth in the case of server-client applications such as video streaming, but can also take advantage of the increased upload bandwidth greatly reducing download times with incentive-based P2P applications such as BitTorrent.
eng
© 2009 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5202389
ClubADSL: When your neighbors are your friends
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20501/1/Giustiniano_iscc09_1.pdf
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oai:repositori.upf.edu:10230/205022018-01-24T08:26:29Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Jindal, Nihar
author
Lozano Solsona, Angel
2013-03-14T11:45:38Z
2013-03-14T11:45:38Z
2009
Jindal N, Lozano A. De-hyping transmit diversity in modern MIMO cellular systems. In: 2009 IEEE Global Telecommunications Conference (GLOBECOM '09); 2009 Nov 30 - Dec 4; Honolulu, Hawaii, USA. [S.l.]: IEEE; c2009. 6 fulls. DOI 10.1109/GLOCOM.2009.5426082
1930-529X
http://hdl.handle.net/10230/20502
http://dx.doi.org/10.1109/GLOCOM.2009.5426082
A contemporary perspective on the tradeoff between transmit antenna diversity and spatial multi-plexing is provided. It is argued that, in the context of modern cellular systems and for the operating points of interest, transmission techniques that utilize all available spatial degrees of freedom for multiplexing/noutperform techniques that explicitly sacrifice spatial/nmultiplexing for diversity. Reaching this conclusion, however, requires that the channel and some key system features be adequately modeled; failure to do so may bring about starkly different conclusions. As a specific example, this contrast is illustrated using the 3GPP Long-Term Evolution system design.
eng
© 2009 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5426082
De-hyping transmit diversity in modern MIMO cellular systems
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20502/1/Jindal_globecom09_1.pdf
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oai:repositori.upf.edu:10230/205032018-01-24T08:26:33Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Wang, Ni-Chun
author
Biglieri, Ezio
author
Yao, Kung
other
Universitat Pompeu Fabra
2013-03-14T11:45:40Z
2013-03-14T11:45:40Z
2009
Wang N-C, Biglieri E, Yao K. A systolic array for linear MIMO detection based on an all-swap lattice reduction algorithm. In: 34th IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP '09); 2009 Apr 19-24; Taipei, Taiwan. [S.l.]: IEEE; c2009. p. 2461-2464. DOI 10.1109/ICASSP.2009.4960120
1520-6149
http://hdl.handle.net/10230/20503
http://dx.doi.org/10.1109/ICASSP.2009.4960120
A systolic array to implement lattice-reduction-aided linear/ndetection is proposed for a MIMO receiver. The lattice reduction/nalgorithm and the ensuing linear detections are operated in the same array, which can be hardware-efficient. All-swap lattice reduction algorithm (ASLR) is considered for the systolic design./nASLR is a variant of the LLL algorithm, which processes all lattice basis vectors within one iteration. Lattice-reduction-aided linear detection based on ASLR and LLL algorithms have very similar/nbit-error-rate performance, while ASLR is more time efficient in/nthe systolic array, especially for systems with a large number of/nantennas.
eng
© 2009 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4960120
A systolic array for linear MIMO detection based on an all-swap lattice reduction algorithm
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20503/1/Wang_icassp09_1.pdf
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oai:repositori.upf.edu:10230/205042018-01-24T08:33:59Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Andriyanova, Iryna
author
Biglieri, Ezio
author
Boutros, Joseph Jean
other
Universitat Pompeu Fabra
2013-03-14T11:45:42Z
2013-03-14T11:45:42Z
2010
Andriyanova I, Boutros JJ, Biglieri E. Outage thresholds of LDPC codes over nonergodic block-fading channels. In: 16th European Wireless Conference 2010 (EW '10); 2010 Apr 12-15; Lucca, Italy. [S.l.]: IEEE; c2010. p. 1011-1014. DOI 10.1109/EW.2010.5483531
978-1-4244-5999-5
http://hdl.handle.net/10230/20504
http://dx.doi.org/10.1109/EW.2010.5483531
This paper derives approximations allowing the estimation of outage probability for standard irregular LDPC codes and full-diversity Root-LDPC codes used over nonergodic block-fading channels. Two separate approaches are discussed: a numerical approximation, obtained by curve fitting, for both code ensembles, and an analytical approximation for Root-LDPC codes, obtained under the assumption that the slope of the iterative threshold curve of a given code ensemble matches the slope of the outage capacity curve in the high-SNR regime.
eng
© 2010 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5483531
Outage thresholds of LDPC codes over nonergodic block-fading channels
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20504/1/Andriyanova_ew10_1.pdf
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oai:repositori.upf.edu:10230/205052018-01-24T08:27:14Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Lozano Solsona, Angel
author
Jindal, Nihar
2013-03-14T11:45:44Z
2013-03-14T11:45:44Z
2010
Lozano A, Jindal N. Optimum pilot overhead in wireless communication: a unified treatment of continuous and block-fading channels. In: 16th European Wireless Conference 2010 (EW '10); 2010 Apr 12-15; Lucca, Italy. [S.l.]: IEEE; c2010. p. 725-732. DOI 10.1109/EW.2010.5483526
978-1-4244-5999-5
http://hdl.handle.net/10230/20505
http://dx.doi.org/10.1109/EW.2010.5483526
The optimization of the pilot overhead in wireless fading channels is investigated, and the dependence of this overhead on various system parameters of interest (e.g., fading rate, signal-to-noise ratio) is quantified. The achievable pilot-based spectral efficiency is expanded with respect to the fading rate about the no-fading point, which leads to an accurate order expansion for the pilot overhead. This expansion identifies that the pilot overhead, as well as the spectral efficiency penalty with respect to a reference system with genie-aided CSI (channel state information) at the receiver, depend on the square root of the normalized Doppler frequency. It is also shown that the widely-used/nblock fading model is a special case of more accurate continuous fading models in terms of the achievable pilot-based spectral efficiency. Furthermore, it is established that the overhead optimization for multiantenna systems is effectively the same as for single-antenna systems with the/nnormalized Doppler frequency multiplied by the number of transmit antennas.
eng
© 2010 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5483526
Optimum pilot overhead in wireless communication: a unified treatment of continuous and block-fading channels
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20505/1/Lozano_ew10_2.pdf
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oai:repositori.upf.edu:10230/205062020-04-17T07:45:20Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Andriyanova, Iryna
author
Biglieri, Ezio
author
Boutros, Joseph Jean
2013-03-14T11:45:46Z
2013-03-14T11:45:46Z
2010
Andriyanova I, Biglieri E, Boutros JJ. On iterative performance of LDPC and Root-LDPC codes over block-fading channels. In: 2010 48th Annual Allerton Conference on Communications, Control and Computing; 2010 Sep 29-Oct 1; Monticello, Illinois, USA. [S.l.]: IEEE; c2010. p. 167-171. DOI 10.1109/ALLERTON.2010.5706903
978-1-4244-8215-3
http://hdl.handle.net/10230/20506
http://dx.doi.org/10.1109/ALLERTON.2010.5706903
This paper presents our investigation on iterative/ndecoding performances of some sparse-graph codes on block-fading Rayleigh channels. The considered code ensembles are standard LDPC codes and Root-LDPC codes, first proposed in and shown to be able to attain the full transmission diversity. We study the iterative threshold performance of those codes as a function of fading gains of the transmission channel and propose a numerical approximation of the iterative threshold versus fading gains, both both LDPC and Root-LDPC codes./nAlso, we show analytically that, in the case of 2 fading blocks,/nthe iterative threshold root of Root-LDPC codes is proportional to (α1 α2)1, where α1 and α2 are corresponding fading gains./nFrom this result, the full diversity property of Root-LDPC codes immediately follows.
eng
© 2010 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5706903
On iterative performance of LDPC and Root-LDPC codes over block-fading channels
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20506/1/Andriyanova_allerton10_1.pdf
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oai:repositori.upf.edu:10230/205072018-01-24T08:27:33Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Jindal, Nihar
author
Lozano Solsona, Angel
2013-03-14T11:45:48Z
2013-03-14T11:45:48Z
2010
Jindal N, Lozano A. Fading models and metrics for contemporary wireless systems. In: Matthews MB, editor. Conference record of the 44th Asilomar Conference on Signals, Systems and Computers; 2010 Nov 7-10; Pacific Grove, California, USA. [S.l.]: IEEE, c2010. p. 625-629. DOI 10.1109/ACSSC.2010.5757637
1058-6393
http://hdl.handle.net/10230/20507
http://dx.doi.org/10.1109/ACSSC.2010.5757637
The purpose of this paper is to examine (1) some of the models commonly used to represent fading,/nand (2) the information-theoretic metrics most commonly used to evaluate performance over those models. We raise the question of whether these models and metrics remain adequate in light of the advances that wireless systems have/nundergone over the last two decades. Weaknesses are pointed/nout, and ideas on possible fixes are put forth.
eng
© 2010 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5757637
Fading models and metrics for contemporary wireless systems
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20507/1/Jindal_asilomar10_1.pdf
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oai:repositori.upf.edu:10230/205082018-01-24T08:27:48Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Biglieri, Ezio
author
Hong, Yi
author
Viterbo, Emanuele
other
Universitat Pompeu Fabra
2013-03-14T11:45:50Z
2013-03-14T11:45:50Z
2008
Biglieri E, Hong Y, Viterbo E. Silver space-time trellis-coded modulation. In: 16th European Signal Processing Conference (EUSIPCO 2008); 2008 Aug 25-29; Lausanne, Switzerland. [S.l.]: EURASIP, c2008. 5 fulls.
2219-5491
http://hdl.handle.net/10230/20508
Silver Code (SilC) was originally discovered in [1–4] for 2×2 multiple-input multiple-output (MIMO) transmission. It has non-vanishing minimum determinant 1/7, slightly lower than Golden code, but is fast-decodable, i.e., it allows reduced-complexity maximum likelihood decoding [5–7]. In this paper, we present a multidimensional trellis-coded modulation scheme for MIMO systems [11] based on set partitioning of the Silver Code, named Silver Space-Time Trellis Coded Modulation (SST-TCM). This lattice set partitioning is designed specifically to increase the minimum determinant. The branches of the outer trellis code are labeled with these partitions. Viterbi algorithm is applied for trellis decoding, while the branch metrics are computed by using a sphere-decoding algorithm. It is shown that the proposed SST-TCM performs very closely to the Golden Space-Time Trellis Coded Modulation (GST-TCM) scheme, yet/nwith a much reduced decoding complexity thanks to its fast-decoding property.
eng
© EURASIP. The paper is provided after EURASIP's permission.
Silver space-time trellis-coded modulation
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20508/1/Biglieri_eusipco_1.pdf
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oai:repositori.upf.edu:10230/205092018-01-24T08:34:10Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Angelosante, Daniele
author
Biglieri, Ezio
author
Lops, Marco
other
Universitat Pompeu Fabra
2013-03-14T11:45:52Z
2013-03-14T11:45:52Z
2008
Angelosante D, Biglieri E, Lops M. Multiuser detection with an unknown number of active users: receiver design. In: 16th European Signal Processing Conference (EUSIPCO 2008); 2008 Aug 25-29; Lausanne, Switzerland. [S.l.]: EURASIP, c2008. 5 fulls.
2219-5491
http://hdl.handle.net/10230/20509
In multiuser detection, the set of users active at any time may be unknown to the receiver. In these conditions, optimum reception consists of detecting simultaneously the set of active/nusers and their data, problem that can be solved exactly by applying random-set theory (RST) and Bayesian recursions (BR). However, implementation of optimum receivers may be limited by their complexity, which grows exponentially with the number of potential users. In this paper we examine three strategies leading to reduced-complexity receivers./nIn particular, we show how a simple approximation of BRs enables the use of Sphere Detection (SD) algorithm, which/nexhibits satisfactory performance with limited complexity.
eng
© EURASIP. The paper is provided after EURASIP's permission.
Multiuser detection with an unknown number of active users: receiver design
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20509/1/Angelosante_eusipco_2.pdf
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oai:repositori.upf.edu:10230/205102018-01-24T08:28:11Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Angelosante, Daniele
author
Biglieri, Ezio
author
Lops, Marco
other
Universitat Pompeu Fabra
2013-03-14T11:45:54Z
2013-03-14T11:45:54Z
2008
Angelosante D, Biglieri E, Lops M. Multiple target tracking using random sets. In: 16th European Signal Processing Conference (EUSIPCO 2008); 2008 Aug 25-29; Lausanne, Switzerland. [S.l.]: EURASIP, c2008. 5 fulls.
2219-5491
http://hdl.handle.net/10230/20510
This paper presents several algorithms for joint estimation of the target number and state in a time-varying scenario. Building on the results presented in [1], which considers estimation of the target number only, we assume that not only the target number, but also their state evolution must be estimated. In this context, we extend to this new scenario the Rao-Blackwellization procedure of [1] to compute Bayes recursions, thus defining reduced-complexity solutions for the multi-target set estimator. A performance assessment/nis finally given both in terms of Circular Position Error Probability - aimed at evaluating the accuracy of the estimated track - and in terms of Cardinality Error Probability, aimed at evaluating the reliability of the target number estimates.
eng
© EURASIP. The paper is provided after EURASIP's permission.
Multiple target tracking using random sets
info:eu-repo/semantics/conferenceObject
URL
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oai:repositori.upf.edu:10230/205552023-07-03T10:16:21Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Tauste Campo, Adrià, 1982-
author
Biglieri, Ezio
2013-04-15T10:16:44Z
2013-04-15T10:16:44Z
2008
Tauste-Campo A, Biglieri E. Asymptotic capacity of static multiuser channels with an unknown number of users. In: The 11th International Symposium on Wireless Personal Multimedia Communications (WPMC '08); 2008 Sep 8-11; Lapland, Finland. [Tokyo]: NICT, c2008.
http://hdl.handle.net/10230/20555
We examine a multiple-access communication system in which multiuser detection is performed without knowledge of the number of active interferers. Using a statistical-physics approach, we compute the single-user channel capacity and spectral efficiency in the large-system limit.
eng
© 2008 NICT
Asymptotic capacity of static multiuser channels with an unknown number of users
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20555/1/Tauste_wpmc08.pdf
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oai:repositori.upf.edu:10230/205782023-03-13T14:26:46Zcom_10230_5542com_10230_5922col_10230_8581col_10230_16116
Repositori digital de la UPF
author
Geffner, Héctor
author
Lipovetzky, Nir
2013-05-08T14:49:03Z
2013-05-08T14:49:03Z
2012
Lipovetzky, Nir, Geffner, Hector. Width and serialization of classical planning problems. Frontiers in artificial intelligence and applications. ECAI 2012; 242: 540-545. DOI 10.3233/978-1-61499-098-7-540
0922-6389
http://hdl.handle.net/10230/20578
http://dx.doi.org/10.3233/978-1-61499-098-7-540
We introduce a width parameter that bounds the complexity of classical planning problems and domains, along with a simple but effective blind-search procedure that runs in time that is exponential in the problem width. We show that many benchmark domains have a bounded and small width provided thatgoals are restricted to single atoms, and hence that such problems are provably solvable in low polynomial time. We then focus on the practical value of these ideas over the existing benchmarks which feature conjunctive goals. We show that the blind-search procedure can be used for both serializing the goal into subgoals and for solving the resulting problems, resulting in a ‘blind’ planner that competes well with a best-first search planner guided by state-of-the-art heuristics. In addition, ideas like helpful actions and landmarks can be integrated as well, producing a planner with state-of-the-art performance.
eng
© 2012 The Author(s). This article is published online with Open Access by IOS Press and distributed under the terms of the Creative Commons Attribution Non-Commercial License.
Width and serialization of classical planning problems
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/20578/1/FAIA242-0540.pdf
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oai:repositori.upf.edu:10230/217602018-01-24T08:34:25Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Maestre Gómez, Esteban
author
Pérez Carrillo, Alfonso Antonio, 1977-
author
Ramírez, Rafael,1966-
other
Universitat Pompeu Fabra
2014-01-15T18:21:26Z
2014-01-15T18:21:26Z
2010
Maestre E, Perez A, Ramirez R. Gesture sampling for instrumental sound synthesis: violin bowing as a case study. In: Proceedings of the International Computer Music Conference; 2010; New York. p. 64-66.
2223-3881
http://hdl.handle.net/10230/21760
This paper presents a framework in which samples of bowing gesture parameters are retrieved and concatenated from a database of violin performances by attending to an annotated input score. Resulting bowing parameter signals are then used to synthesize sound by means of both a digital waveguide violin physical model, and an spectral-domain/nadditive synthesizer.
eng
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License
Gesture sampling for instrumental sound synthesis: violin bowing as a case study
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/21760/1/maestre_icmc2010.pdf
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oai:repositori.upf.edu:10230/218212019-06-28T12:25:55Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Font Corbera, Frederic
author
Roma Trepat, Gerard
author
Herrera Boyer, Perfecto, 1964-
author
Serra, Xavier
other
Universitat Pompeu Fabra
2014-01-27T09:29:38Z
2014-01-27T09:29:38Z
2012
Font F, Roma G, Herrera P, Serra X. Characterization of the freesound online community In: 2012 3rd International Workshop on Cognitive Information Processing (CIP); 2012 May 28-30; Baiona, Spain. [S.l.]: IEEE; c2012. 6 p. DOI 10.1109/CIP.2012.6232938
9781467318785
http://hdl.handle.net/10230/21821
There are many online communities with membergenerated and openly available multimedia content. Their success/ndepends on having active contributing users and on producing useful content. With this criterion, the community of sound practitioners that has emerged in Freesound is a successful case of interest to be studied. But to understand it and support it further we need an appropriate analysis methodology. In this paper we propose some qualitative and quantitative approaches for its characterization, focusing on the analysis of organizational structure, shared goals, user interactions and vocabulary sharing. We think that the proposed approach can be applied to other/nonline communities with similar characteristics.
eng
© 2012 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6232938
Characterization of the freesound online community
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/21821/1/Font-et-al-CIP-2012.pdf
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oai:repositori.upf.edu:10230/218222020-04-17T09:33:08Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Maestre Gómez, Esteban
other
Universitat Pompeu Fabra
2014-01-27T09:29:41Z
2014-01-27T09:29:41Z
2009
Maestre E. Data-Driven Stastical modeling of violin bowing gesture parameter contours. In: Proceedings of the International Computer Music Conference; 2009; Montreal. p. 243-250.
http://hdl.handle.net/10230/21822
We present a framework for modeling right-hand gestures in bowed-string instrument playing, applied to violin. Nearly non-intrusive sensing techniques allow for accurate acquisition of relevant timbre-related bowing gesture parameter cues. We model the temporal contour of bow transversal velocity, bow pressing force, and bow-bridge distance as sequences of short segments, in particular B´ezier cubic curve segments. Considering different articulations, dynamics, and/ncontexts, a number of note classes is defined. Gesture parameter contours of a performance database are analyzed at note-level by following a predefined grammar that dictates/ncharacteristics of curve segment sequences for each of the classes into consideration. Based on dynamic programming, gesture parameter contour analysis provides an optimal curve parameter vector for each note. The information/npresent in such parameter vector is enough for reconstructing original gesture parameter contours with significant fidelity. From the resulting representation vectors, we/nconstruct a statistical model based on Gaussian mixtures, suitable for both analysis and synthesis of bowing gesture parameter contours. We show the potential of the model/nby synthesizing bowing gesture parameter contours from an annotated input score. Finally, we point out promising applications/nand developments.
eng
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License
Statistical modeling of violin bowing parameter contours
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/21822/1/maestre_icmc2009.pdf
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oai:repositori.upf.edu:10230/226442020-04-15T09:11:24Zcom_10230_5922com_10230_5542com_10230_4984col_10230_16116col_10230_4986col_10230_23310
Repositori digital de la UPF
author
Moreno, Verónica
author
Hernández Leo, Davinia
other
Universitat Pompeu Fabra. Unitat de Suport a la Qualitat i Innovació Docent. Escola Superior Politècnica
2014-07-28T09:25:15Z
2014-07-28T09:25:15Z
2014-07
Moreno V, Hernández-Leo D. El uso de vídeos académicos: ¿cómo los percibe el estudiantado? : La experiencia en la asignatura de “Introducción a las TIC”. Comunicación presentada a: CIDUI 2014; 2014 jul 2-4; Tarragona.
http://hdl.handle.net/10230/22644
A raíz de un proyecto de innovación educativa PlaQUID de la Universitat Pompeu Fabra, la asignatura “Introducción a las TIC” (común y obligatoria en los grados TIC de la Escuela Superior Politécnica) elabora vídeos multilingües que presentan aspectos clave de la asignatura. Al finalizar se evalúa la percepción del estudiantado, se analizan los resultados y se observa una triple perspectiva en cómo entienden los estudiantes este recurso: como un repaso, como una herramienta o como ampliación.
Following an educational innovation project PlaQUID at Universitat Pompeu Fabra, the subject called "Introduction to ICT" (common and compulsory on the Polytechnic School degrees) elaborated multilingual videos showing key aspects of that subject. After using the videos in the course, we evaluated the students’ perception about its usefulness, relevance, etc. The results were analyzed and three different perspectives on how students perceived this resource were observed: as a content review, as a tool or as a content extension.
spa
Aquest document està subjecte a una llicència Creative Commons.
El uso de vídeos académicos: ¿cómo los percibe el estudiantado? : La experiencia en la asignatura de “Introducción a las TIC”
info:eu-repo/semantics/conferenceObject
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http://repositori.upf.edu/bitstream/10230/22644/1/Final_CIDUI_VIDEOS_enviat.pdf
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oai:repositori.upf.edu:10230/226562020-04-15T09:34:49Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Mayor, Oscar
author
Llimona Torras, Quim
author
Marchini, Marco, 1984-
author
Papiotis, Panagiotis, 1985-
author
Maestre Gómez, Esteban
2014-09-03T09:20:39Z
2014-09-03T09:20:39Z
2013
Mayor O, Llimona Q, Marchini M, Papiotis P, Maestre E. RepoVizz: a framework for remote storage, browsing, annotation, and exchange of multi-modal data. In: Proceedings of the 21st ACM International Conference on Multimedia; 2013 Oct 21-25; Barcelona, Spain. New York: ACM, 2013. p. 415–6. DOI 10.1145/2502081.2502247
http://hdl.handle.net/10230/22656
http://dx.doi.org/10.1145/2502081.2502247
In this technical demo we present repoVizz (http://repovizz.upf.edu), an integrated online system capable of structural formatting and remote storage, browsing, exchange, annotation, and visualization of synchronous multi-modal, time-aligned data. Motivated by a growing need for data-driven collaborative research, repoVizz aims to resolve commonly encountered difficulties in sharing or browsing large collections of multi-modal data. At its current state, repoVizz is designed to hold time-aligned streams of heterogeneous data: audio, video, motion capture, physiological signals, extracted descriptors, annotations, et cetera. Most popular formats for audio and video are supported, while Broadcast WAVE or CSV formats are adopted for streams other than audio or video (e.g., motion capture or physiological signals). The data itself is structured via customized XML files, allowing the user to (re-) organize multi-modal data in any hierarchical manner, as the XML structure only holds metadata and pointers to data files. Datasets are stored in an online database, allowing the user to interact with the data remotely through a powerful HTML5 visual interface accessible from any standard web browser; this feature can be considered a key aspect of repoVizz since data can be explored, annotated, or visualized from any location or device. Data exchange and upload/download is made easy and secure via a number of data conversion tools and a user/permission management system.
eng
© ACM, 2013. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in Proceedings of the 21st ACM International Conference on Multimedia, (2013). http://doi.acm.org/10.1145/2502081.2502247
repoVizz: a framework for remote storage, browsing, annotation, and exchange of multi-modal data
info:eu-repo/semantics/conferenceObject
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http://repositori.upf.edu/bitstream/10230/22656/1/mayor_acmm13_repovizz.pdf
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oai:repositori.upf.edu:10230/227232020-04-15T09:01:18Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Serra, Xavier
2014-10-15T07:10:59Z
2014-10-15T07:10:59Z
2011
Serra X. A Multicultural approach in music information research In: Klapuri A, Leider C, editors. ISMIR 2011: Proceedings of the 12th International Society for Music Information Retrieval Conference; 2011 October 24 - 28; Miami, Florida (USA). Miami: University of Miami; 2011. p.151-156.
http://hdl.handle.net/10230/22723
Our information technologies do not respond to the world's/nmulticultural reality; in fact, we are imposing the paradigms/nof our market-driven western culture also on IT, thus facilitating/nthe access of a small part of the world’s information/nto a small part of the world's population. The current IT research/nefforts may even make it worse, and future IT will/naccentuate this information bias. Most IT research is being/ncarried out with a western centered approach and as a result,/nmost of our data models, cognition models, user models,/ninteraction models, ontologies, etc., are culturally biased./nThis fact is quite evident in music information research,/nsince, despite the world's richness in terms of musical/nculture, most research is centered on CDs and metadata/nof western commercial music. This is the motivation behind/na large and ambitious project funded by the European Research/nCouncil entitled "CompMusic: Computational Models/nfor the discovery of the world's music." In this paper we/npresent the ideas supporting this project, the challenges that/nwe want to work on, and the proposed approaches to tackle/nthese challenges.
eng
© ISMIR
A Multicultural approach in music information research
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/22723/1/Serra_ISMIR_2011.pdf
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oai:repositori.upf.edu:10230/227242021-03-25T10:52:45Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Serrà Julià, Joan
author
Koduri, Gopala Krishna
author
Miron, Marius
author
Serra, Xavier
2014-10-15T07:11:03Z
2014-10-15T07:11:03Z
2011
Serrà J, Koduri GK, Miron M, Serra X. Assessing the tuning of sung indian classical music. In: Klapuri A, Leider C, editors. ISMIR 2011: Proceedings of the 12th International Society for Music Information Retrieval Conference; 2011 October 24 - 28; Miami, Florida (USA). Miami: University of Miami; 2011. p.157-162.
http://hdl.handle.net/10230/22724
The issue of tuning in Indian classical music has been, historically,/na matter of theoretical debate. In this paper, we/nstudy its contemporary practice in sung performances of Carnatic/nand Hindustani music following an empiric and quantitative/napproach. To do so, we select stable fundamental frequencies,/nestimated via a standard algorithm, and construct/ninterval histograms from a pool of recordings. We then compare/nsuch histograms against the ones obtained for different/nmusic sources and against the theoretical values derived/nfrom 12-note just intonation and equal temperament. Our/nresults evidence that the tunings in Carnatic and Hindustani/nmusic differ, the former tending to a just intonation system/nand the latter having much equal-tempered influences. Carnatic/nmusic also presents signs of a more continuous distribution/nof pitches. Further subdivisions of the octave are/npartially investigated, finding no strong evidence of them.
eng
© ISMIR
Assessing the tuning of sung indian classical music
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/22724/1/SerraJ_ISMIR_2011.pdf
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oai:repositori.upf.edu:10230/227252020-04-15T09:09:09Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Koduri, Gopala Krishna
author
Miron, Marius
author
Serrà Julià, Joan
author
Serra, Xavier
2014-10-15T07:11:06Z
2014-10-15T07:11:06Z
2011
Koduri GK, Miron M, Serrà J, Serra X. Computational approaches for the understanding of melody in carnatic music. In: Klapuri A, Leider C, editors. ISMIR 2011: Proceedings of the 12th International Society for Music Information Retrieval Conference; 2011 October 24 - 28; Miami, Florida (USA). Miami: University of Miami; 2011. p.263-268.
http://hdl.handle.net/10230/22725
The classical music traditions of the Indian subcontinent,/nHindustani and Carnatic, offer an excellent ground on which/nto test the limitations of current music information research/napproaches. At the same time, studies based on these music/ntraditions can shed light on how to solve new and complex/nmusic modeling problems. Both traditions have very distinct/ncharacteristics, specially compared with western ones:/nthey have developed unique instruments, musical forms, performance/npractices, social uses and context. In this article,/nwe focus on the Carnatic music tradition of south India, especially/non its melodic characteristics. We overview the/ntheoretical aspects that are relevant for music information/nresearch and discuss the scarce computational approaches/ndeveloped so far. We put emphasis on the limitations of the/ncurrent methodologies and we present open issues that have/nnot yet been addressed and that we believe are important to/nbe worked on.
eng
© ISMIR
Computational approaches for the understanding of melody in carnatic music
info:eu-repo/semantics/conferenceObject
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http://repositori.upf.edu/bitstream/10230/22725/1/Koduri_ISMIR_2011.pdf
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oai:repositori.upf.edu:10230/227262020-04-15T09:37:21Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Akkermans, Vincent
author
Font Corbera, Frederic
author
Funollet, Jordi
author
de Jong, Bram
author
Roma Trepat, Gerard
author
Togias, Stelios
author
Serra, Xavier
2014-10-15T07:11:08Z
2014-10-15T07:11:08Z
2011
Akkermans V, Font F, Funollet J, de Jong B, Roma G, Togias S, Serra X. Freesound 2: An improved platform for sharing audio clips. In: Klapuri A, Leider C, editors. ISMIR 2011: Proceedings of the 12th International Society for Music Information Retrieval Conference; 2011 October 24 - 28; Miami, Florida (USA). Miami: University of Miami; 2011.
http://hdl.handle.net/10230/22726
Freesound.org is an online collaborative sound database where people from different disciplines share recorded sound clips under Creative Commons licenses. It was started in 2005 and it is being further developed by the Music Technology Group (MTG) of the Universitat Pompeu Fabra. Freesound’s initial goal was to give support to sound researchers, who often have trouble finding large royalty-free sound databases to test their algorithms, and to sound artists, who use pre-recorded sounds in their pieces. After six years since its inception, Freesound has become one of the most popular sites for sharing sound snippets. It serves around 30,000 unique visits per day and has more than two million registered users accessing the more than 120,000 uploaded sounds. Perhaps more importantly, there is a highly engaged community of users continuously contributing to the site, not only uploading sounds but also commenting, rating and discussing in the forums about relevant topics for the community. This remarkable growth surpassed our expectations and forced us to redesign and rebuild Freesound from scratch. This demo shows the new version of Freesound which brings a number of improvements and new functionalities. Some of these improvements facilitate the access to the content and provide a new framework for developers and researchers that are interested in working with Freesound. What follows is a summarized description of the system and the types of content that can be found.
eng
© ISMIR
Freesound 2: An improved platform for sharing audio clips
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/22726/1/Akkermans_ISMIR_2011.pdf
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oai:repositori.upf.edu:10230/227272018-02-06T10:59:52Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Özaslan, Tan Hakan
author
Serra, Xavier
author
Arcos, Josep Lluís
2014-10-16T10:45:54Z
2014-10-16T10:45:54Z
2012
Özaslan TH, Serra X, Arcos JLL. Characterization of embellishments in ney performances of makam music in Turkey. In: Gouyon F, Herrera P, Martins LG, Müller M. Proceedings of the 13th International Society for Music Information Retrieval Conference (ISMIR 2012); 2012 Oct 8-12; Porto, Portugal. Porto: FEUP Ediçoes, 2012. p. 13-18.
http://hdl.handle.net/10230/22727
The embellishments of makam music in Turkey are an/ninherent characteristic of the music rather than a separate/nexpressive resource, thus their understanding is essential to/ncharacterize this music. We do a computational study, in/nwhich we analyze audio recordings of 8 widely acknowledged/nTurkish ney players covering the period from the/nyear 1920 to 2000. From the extracted fundamental frequency,/nwe manually segment and identify 327 separate/nembellishments of the types vibrato and kaydırma. We analyze/nthem and characterize the behavior of two features/nthat help us differentiate performance styles, namely vibrato/nrate change and pitch bump. Also we compare these/nembellishments with the ones used in Western classical/nmusic. With our approach, we have an explicit and formalized/nway to understand ney embellishments, which is a/nstep towards the automatic characterization of makam music/nin Turkey.
eng
© ISMIR
Characterization of embellishments in ney performances of makam music in Turkey
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/22727/1/Ozaslan-Tan-ISMIR-2012.pdf
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oai:repositori.upf.edu:10230/227282018-01-24T08:03:48Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Koduri, Gopala Krishna
author
Serrà Julià, Joan
author
Serra, Xavier
2014-10-16T10:45:58Z
2014-10-16T10:45:58Z
2012
Koduri GK, Serrà J, Serra X. Characterization of intonation in Carnatic music by parametrizing pitch histograms. In: Gouyon F, Herrera P, Martins LG, Müller M. ISMIR 2012: Proceedings of the 13th International Society for Music Information Retrieval Conference; 2012 Oct 8-12; Porto, Portugal. Porto: FEUP Ediçoes, 2012. p. 199-204.
http://hdl.handle.net/10230/22728
Intonation is an important concept in Carnatic music that/nis characteristic of a raaga, and intrinsic to the musical expression/nof a performer. In this paper we approach the description/nof intonation from a computational perspective,/nobtaining a compact representation of the pitch track of a/nrecording. First, we extract pitch contours from automatically/nselected voice segments. Then, we obtain a a pitch/nhistogram of its full pitch-range, normalized by the tonic/nfrequency, from which each prominent peak is automatically/nlabelled and parametrized. We validate such parametrization/nby considering an explorative classification task:/nthree raagas are disambiguated using the characterization/nof a single peak (a task that would seriously challenge a/nmore na¨ıve parametrization). Results show consistent improvements/nfor this particular task. Furthermore, we perform/na qualitative assessment on a larger collection of raagas,/nshowing the discriminative power of the entire representation./nThe proposed generic parametrization of the intonation/nhistogram should be useful for musically relevant/ntasks such as performer and instrument characterization.
eng
© ISMIR
Characterization of intonation in Carnatic music by parametrizing pitch histograms
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/22728/1/Koduri_ISMIR_2012.pdf
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oai:repositori.upf.edu:10230/227342018-01-24T08:03:48Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Sordo, Mohamed
author
Serrà Julià, Joan
author
Koduri, Gopala Krishna
author
Serra, Xavier
2014-10-17T06:58:06Z
2014-10-17T06:58:06Z
2012
Sordo M, Serrà J, Koduri GK, Serra X. Extracting semantic information from an online Carnatic music forum. In: Gouyon F, Herrera P, Martins LG, Müller M. ISMIR 2012: Proceedings of the 13th International Society for Music Information Retrieval Conference; 2012 Oct 8-12; Porto, Portugal. Porto: FEUP Ediçoes; 2012. p. 355-360.
http://hdl.handle.net/10230/22734
By mining user-generated text content we can obtain musicrelated/ninformation that could not otherwise be extracted/nfrom audio signals or symbolic score representations. In/nthis paper we propose a methodology for extracting/nmusic-related semantic information from an online/ndiscussion forum, rasikas.org, dedicated to the Carnatic/nmusic tradition. We first define a dictionary of relevant/nterms within categories such as raagas, taalas, performers,/ncomposers, and instruments, and create a complex network/nrepresentation by matching such dictionary against the forum/nposts. This network representation is used to identify/npopular terms within the forum, as well as relevant/nco-occurrences and semantic relationships. This way, for/ninstance, we are able to learn the instrument played by a/nperformer with 95% accuracy, to discover the confusion/nbetween two raagas with different naming conventions, or/nto infer semantic relationships regarding lineage or musical/ninfluence. This contribution is a first step towards the/nautomatic creation of ontologies for specific musical cultures.
eng
© ISMIR
Extracting semantic information from an online Carnatic music forum
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/22734/1/Sordo_ISMIR_2012.pdf
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oai:repositori.upf.edu:10230/227352018-01-24T08:04:21Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Salamon, Justin
author
Gulati, Sankalp
author
Serra, Xavier
2014-10-17T06:58:09Z
2014-10-17T06:58:09Z
2012
Salamon J, Gulati S, Serra X. A multipitch approach to tonic identification in Indian classical music. In: Gouyon F, Herrera P, Martins LG, Müller M. ISMIR 2012: Proceedings of the 13th International Society for Music Information Retrieval Conference; 2012 Oct 8-12; Porto, Portugal. Porto: FEUP Ediçoes; 2012. p. 499-504.
http://hdl.handle.net/10230/22735
The tonic is a fundamental concept in Indian classical music/nsince it constitutes the base pitch from which a lead/nperformer constructs the melodies, and accompanying instruments/nuse it for tuning. This makes tonic identification/nan essential first step for most automatic analyses of Indian/nclassical music, such as intonation and melodic analysis,/nand raga recognition. In this paper we address the task/nof automatic tonic identification. Unlike approaches that/nidentify the tonic from a single predominant pitch track,/nhere we propose a method based on a multipitch analysis of/nthe audio. We use a multipitch representation to construct/na pitch histogram of the audio excerpt, out of which the/ntonic is identified. Rather than manually define a template,/nwe employ a classification approach to automatically learn/na set of rules for selecting the tonic. The proposed method/nreturns not only the pitch class of the tonic but also the precise/noctave in which it is played. We evaluate the approach/non a large collection of Carnatic and Hindustani music, obtaining/nan identification accuracy of 93%. We also discuss/nthe types of errors made by our proposed method, as well/nas the challenges in generating ground truth annotations.
eng
© ISMIR
A multipitch approach to tonic identification in Indian classical music
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/22735/1/SalamonTonicID_ISMIR12.pdf
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oai:repositori.upf.edu:10230/227362018-01-24T08:04:13Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Font Corbera, Frederic
author
Serrà Julià, Joan
author
Serra, Xavier
2014-10-17T06:58:12Z
2014-10-17T06:58:12Z
2012
Font F, Serrà J, Serra X. Folksonomy-based tag recommendation for online audio clip sharing. In: Gouyon F, Herrera P, Martins LG, Müller M. ISMIR 2012: Proceedings of the 13th International Society for Music Information Retrieval Conference; 2012 Oct 8-12; Porto, Portugal. Porto: FEUP Ediçoes; 2012. p. 73-78.
http://hdl.handle.net/10230/22736
Collaborative tagging has emerged as an efficient way to/nsemantically describe online resources shared by a community/nof users. However, tag descriptions present some/ndrawbacks such as tag scarcity or concept inconsistencies./nIn these situations, tag recommendation strategies can help/nusers in adding meaningful tags to the resources being described./nFreesound is an online audio clip sharing site that/nuses collaborative tagging to describe a collection of more/nthan 140,000 sound samples. In this paper we propose four/nalgorithm variants for tag recommendation based on tag/nco-occurrence in the Freesound folksonomy. On the basis/nof removing a number of tags that have to be later predicted/nby the algorithms, we find that using ranks instead of raw/ntag similarities produces statistically significant improvements./nMoreover, we show how specific strategies for selecting/nthe appropriate number of tags to be recommended/ncan significantly improve algorithms’ performance. These/ntwo aspects provide insight into some of the most basic/ncomponents of tag recommendation systems, and we plan/nto exploit them in future real-world deployments.
eng
© ISMIR
Folksonomy-based tag recommendation for online audio clip sharing
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/22736/1/Font_ISMIR_2012.pdf
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oai:repositori.upf.edu:10230/228322020-07-24T10:34:54Zcom_10230_4984com_10230_5922com_10230_5542col_10230_4986col_10230_16116
Repositori digital de la UPF
author
Hernández Leo, Davinia
author
Moreno, Verónica
2014-11-21T09:31:14Z
2014-11-21T09:31:14Z
2014-11-21
Hernández-Leo D, Moreno V. Fine-tuning formative and summative assessment in Bachelors' Final Projects. En: Sierra Rodríguez JL, Dodero Beardo JM, Burgos D, editores. Actas del XVI Simposio Internacional de Informática Educativa (SIIE’14): acceso masivo y universal para un aprendizaje a lo largo de la vida; 2014 Nov 12-14; Logroño, España. Logroño: Universidad Internacional de La Rioja; 2014. p. 67-71.
978-84-16125-41-8
http://hdl.handle.net/10230/22832
The role of Bachelors' Final Projects (BFP) in Engineering Education is critical since it offers the opportunity for students to integrate the application of specific and transversal competences they have developed along the degree. However, given the special characteristics of this curriculum component (personalized according to the student's interests, multiple teachers involved, assessment by changing boards, etc.), the systematization of its formative and summative assessment has been extensively recognized as problematic but highly necessary. To face this problem, there are several recent initiatives reported in the literature that propose a set of rubrics as tools for project advisors and board members to structure the assessment. In this paper, we report the experience in the Engineering School at Universitat Pompeu Fabra (Barcelona) applying this approach based on rubrics as part of an assessment guide for BFP (Teacher's Guide to Monitoring and Assessment for BFP, designed by the support unit for teaching quality and innovation of the engineering school - USQUID-ESUP). A quantitative and qualitative evaluation of the experience provides insights about the utility, pertinence, user-friendliness, preciseness and actual use of the proposed guide. The findings indicate that several aspects of the approach applied should be revised considering the characteristics of the context of use. These aspects include the need of providing a tool for the integrated assessment of transversal and specific competences and the interest of providing a summarized version of the rubrics that can be used using mobile devices (tablets, smart phones) during board meetings. The design of this summarized version considers an aggregation of the assessment indicators associated to competences. The paper presents these findings and the designs decisions applied towards a revised version of the assessment guide for BFP.
eng
Copyright © 2014, IEEE
Fine-tuning formative and summative assessment in Bachelors' Final Projects
info:eu-repo/semantics/conferenceObject
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http://repositori.upf.edu/bitstream/10230/22832/1/usquid-esup-tfg-siie2014.pdf
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oai:repositori.upf.edu:10230/228402018-01-24T08:05:49Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Mayor, Oscar
author
Llop, Jordi
author
Maestre Gómez, Esteban
2014-11-25T08:08:36Z
2014-11-25T08:08:36Z
2011
Mayor O, Llop J, Maestre E. RepoVizz: a multi-modal on-line database and browsing tool for music performance research. In: 12th International Society for Music Information Retrieval Conference (ISMIR 2011); Miami; 2011 Oct. 24-28.
http://hdl.handle.net/10230/22840
RepoVizz is a data repository and visualization tool for/nstructured storage and user-friendly browsing of music performance/nmulti-modal recordings. The primary purpose of/nRepoVizz is to offer means for the scientific community to/ngain on-line access to a music performance multi-modal database/nshared among researchers. RepoVizz is designed to/nhold synchronized streams of heterogeneous data (audio,/nvideo, motion capture, physiological measures, extracted/ndescriptors, etc.), annotations, and musical scores. Data/nstreams are stored as single-channel PCM files. The motion-/nsequence format MJ2 is chosen for video. Annotations/nare stored as text files. MusicXML is used for musical/nscores. Data is structured by customizable XML skeleton/nfiles enabling meaningful retrieval. Skeleton files are first/ncreated during data gathering, and provide means to (re-/n)organize acquired data in any desired hierarchical structure,/nas they only hold pointers to stored data files. Once a/ndataset is created and uploaded to the server, each skeleton/nfile defines a view. Multi-track data visualization is done/nremotely via a powerful HTML5-based environment that/nenables web-driven editing (add annotations, extract descriptors)/nand downloading of datasets. A first instance of/nRepoVizz has been created within the EU FET-Open/nProject SIEMPRE, devoted to studying social interaction in/nensemble performance.
eng
© ISMIR
RepoVizz: a multi-modal on-line database and browsing tool for music performance research
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/22840/1/maestre_repovizz_ismir.pdf
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oai:repositori.upf.edu:10230/236672018-03-16T10:07:39Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Maestre Gómez, Esteban
author
Scavone, Gary P.
author
Smith, Julius O.
2015-05-27T10:37:48Z
2015-05-27T10:37:48Z
2013
Maestre E, Scavone GP, Smith JO. Digital modeling of bridge driving-point admittances from measurements on violin-family instruments. In: Bresin R, Askenfelt A, editors. Proceedings of the Stockholm Music Acoustics Conference 2013. Berlin: Logos Verlag; 2013. p 101-108.
http://hdl.handle.net/10230/23667
We present a methodology for digital modeling of D-dimensional driving-point bridge admittances from vibration measurements on instruments of the violin family. Our study, centered around the two-dimensional case for violin, viola, and cello, is based on using the modal framework to construct an admittance formulation providing physically meaningful and effective control over model parameters. In a first stage, mode frequencies and bandwidths are estimated in the frequency domain via solving a non-convex, constrained optimization problem. Then, mode amplitudes are estimated via semidefinite programming while enforcing passivity. We obtain accurate, low-order digital admittance models suited for real-time sound synthesis via physical models.
eng
© 2013 Esteban Maestre et al. This is an open-access article distributed under the terms of the Creative Commons Attribution 3.0 Unported License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Digital modeling of bridge driving-point admittance from measurements on violin-family instruments
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/23667/1/esteban_ICMP12.pdf
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oai:repositori.upf.edu:10230/247732018-01-24T08:31:22Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Kjer, Hans Martin
author
Ceresa, Mario
author
Carranza, Noemí
author
Vera, Sergio
author
Pérez, Frederic
author
Barazzetti, Livia
author
Reyes, Mauricio
author
González Ballester, Miguel Ángel, 1973-
author
Paulsen, Rasmus
2015-09-29T12:39:36Z
2015-09-29T12:39:36Z
2013
Kjer HM, Ceresa M, Carranza N, Vera S, Gonzalez-Ballester MA, Paulsen RR. Cochlear finite element modelling, Mesh quality under SSM-Driven deformations. In: Workshop on Mesh Processing in Medical Image Analysis (Meshmed). Medical Image Computing and Computer-Assisted Intervention (MICCAI) ; 2013 Sep. 22-26; Nagoya, Japan.
http://hdl.handle.net/10230/24773
Combining a high resolution cochlear finite element model with a/npatient low resolution CT scan could provide benefits for the use and implantation/nof cochlear implants. In order to do so requires a cochlear statistical shape/nmodel to drive the deformation fitting process. In this study we explore what/nhappens with the finite element mesh quality under these deformations. We/nsearch for a way of sanity checking the geometry of the mesh prior to running/nfinite element simulations.
eng
Cochlear finite element modelling, Mesh quality under SSM-Driven deformations
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/24773/1/gzlzb_mesh13_cochl.pdf
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oai:repositori.upf.edu:10230/247742018-01-24T08:08:47Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Ceresa, Mario
author
Kjer, Hans Martin
author
Vera, Sergio
author
Carranza, Noemí
author
Pérez, Frederic
author
Barazzetti, Livia
author
Mistrik, Pavel
author
Dhanasingh, Anandhan
author
Caversaccio, Marco
author
Stauber, Martin
author
Reyes, Mauricio
author
Paulsen, Rasmus
author
González Ballester, Miguel Ángel, 1973-
2015-09-29T12:39:40Z
2015-09-29T12:39:40Z
2013
Ceresa M, Kjer HM, Vera S, Carranza N, Perez F, Barazzetti L, Mistrik P, Dhanasingh A, Caversaccio M, Stauber M, Reyes M, Paulsen R, González-Ballester MA. Finite element model for patient-specific functional simulations of cochlear implants. In: Workshop on Mesh Processing in Medical Image Analysis (Meshmed). Medical Image Computing and Computer-Assisted Intervention (MICCAI); 2013 Sep. 22-26; Nagoya, Japan.
http://hdl.handle.net/10230/24774
We present an innovative image analyisis pipeline to perform/npatient-speci c biomechanical and functional simulations of the inner human/near. A high-resolution, cadaveric, mCT volumetric image portraying/nthe detailed geometry of the cochlea is converted into a mesh in order to/nbuild a Finite Element Method (FEM). The constitutive model for the/nFEM is based on a Navier-Stokes formulation for compressible Newtonian/n/nuid, coupled with an elastic solid model. The simulation includes/n/nuid-structure interactions. Further to this, the FEM mesh is deformed/nto a patient-speci c low-resolution Cone Beam CT (CBCT) dataset to/npropagate functional information to the speci c anatomy of the patient./nIllustrative results of how the FE-model responds to various acoustic/nstimuli are shown by analyzing the tonotopic mapping of the cochlear/nmembrane vibration.
eng
Finite element model for patient-specific functional simulations of cochlear implants
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/24774/1/gzlzb_mesh13_fini.pdf
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oai:repositori.upf.edu:10230/247782018-01-24T08:31:24Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Vera, Sergio
author
González Ballester, Miguel Ángel, 1973-
author
Gil, Debora
2015-09-29T12:47:19Z
2015-09-29T12:47:19Z
2013
Vera S, Gonzalez-Ballester MA, Gil D. Volumetric anatomical parameterization and meshing for inter-patient liver coordinate system definition. In: Workshop on Mesh Processing in Medical Image Analysis (Meshmed). Medical Image Computing and Computer-Assisted Intervention (MICCAI); 2013 Sep. 22-26; Nagoya, Japan.
http://hdl.handle.net/10230/24778
A coordinate system parameterizing the interior of organs is/na powerful tool for a systematic localization of injured tissue. If the same/ncoordinate values are assigned to speci c anatomical sites, parameterizations/nensure integration of data across di erent medical image modalities./nHarmonic mappings have been used to produce parametric meshes over/nthe surface of anatomical shapes, given their /nexibility to set values at/nspeci c locations through boundary conditions. However, most of the existing/nimplementations in medical imaging restrict to either anatomical/nsurfaces, or the depth coordinate with boundary conditions is given at/nsites of limited geometric diversity. In this paper we present a method for/nanatomical volumetric parameterization that extends current harmonic/nparameterizations to the interior anatomy using information provided by/nthe volume medial surface. We have applied the methodology to de ne/na common reference system for the liver shape and functional anatomy./nThis reference system sets a solid base for creating anatomical models of/nthe patient's liver, and allows comparing livers from several patients in/na common framework of reference.
eng
© Technical University of Denmark
Volumetric anatomical parameterization and meshing for inter-patient liver coordinate system definition
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/24778/1/gzlzbllstr_mesh_volu.pdf
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oai:repositori.upf.edu:10230/250152018-01-24T08:11:23Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Marchini, Marco, 1984-
author
Papiotis, Panagiotis, 1985-
author
Maestre Gómez, Esteban
2015-11-06T10:10:57Z
2015-11-06T10:10:57Z
2012
Marchini M, Papiotis P, Maestre E. Timing synchronization in string quartet performance: a preliminary study. In: Proceedings of the 9th International Symposium on Computer Music Modeling and Retrieval (CMMR 2012); 2012 June 19-22; London, UK. [London: University of London, 2013]. p. 177-185.
http://hdl.handle.net/10230/25015
This work presents a preliminary study of timing synchronization/nphenomena in string quartet performance. Accurate timing information/nextracted from real recordings is used to compare timing deviations/nin solo and ensemble performance when executing a simple musical/npassage. Multi-modal data is acquired from real performance and/nprocessed towards obtaining note-level segmentation of recorded performances./nFrom such segmentation, a series of timing deviation analyses/nare carried out at two different temporal levels, focusing on the exploration/nof significant differences between solo and ensemble performances./nThis paper briefly introduces, via an initial exploratory study, the experimental/nframework on which further, more complete analyses are to be/ncarried out with the aim of observing and describing certain synchronization/nphenomena taking place in ensemble music making.
Papiotis, Panagiotis
eng
Aquest document està subjecte a una llicència Creative Commons
Timing synchronization in string quartet performance: a preliminary study
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/25015/1/serra_cmmr12_timi.pdf
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oai:repositori.upf.edu:10230/250652018-01-24T08:11:37Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Papiotis, Panagiotis, 1985-
author
Maestre Gómez, Esteban
author
Marchini, Marco, 1984-
author
Pérez Carrillo, Alfonso Antonio, 1977-
2015-11-12T13:41:19Z
2015-11-12T13:41:19Z
2011
Papiotis P, Maestre E, Marchini M, Pérez A. Synchronization of intonation adjustments in violin duets: towards an objective evaluation of musical interaction. In: Peeters G, editor. Proceedings of the 14th International Conference on Digital Audio Effects DAFx-11, 2011 Sept. 19-23; Paris, France. Paris: IRCAM - Centre Pompidou, 2011. p. 417-423. ISBN 978-2-95403-510-9
http://hdl.handle.net/10230/25065
In ensemble music performance, such as a string quartet or du et, the musicians interact and influence each other’s performance via a multitude of parameters – including tempo, dynamics, articulation of musical phrases and, depending on the type of instrument, intonation. This paper presents our ongoing research on the effect of interaction between violinists, in terms of intonation. We base our analysis on a series of experiments with professional as well as amateur musicians playing in duet and solo experimental set-ups, and then apply a series of interdependence measures on each violinist’s pitch deviations from the score. Our results show that while it is possible to, solely based on intonation, distinguish between solo and duet performances for simple cases, there is a multitude of underlying factors that need to be analyzed before these techniques can be applied to more complex pieces and/or non-experimental situations.
eng
© All copyrights remain with the authors.
Synchronization of intonation adjustments in violin duets: towards an objective evaluation of musical interaction
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/25065/1/serra_dafx11_synch.pdf
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oai:repositori.upf.edu:10230/252032018-01-24T08:13:20Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Blat, Josep
author
Ramírez, Rafael,1966-
author
Hernández Leo, Davinia
2015-11-25T08:34:02Z
2015-11-25T08:34:02Z
2015
Diaz D, Ramírez R, Hernández-Leo D. The effect of using a talking head in academic videos: An EEG study. In: IEEE 15th International Conference on Advanced Learning Technologies (ICALT); 2015 Jul 06 - Jul 09; Hualien, Taiwan. [S.l.]: IEEE, 2015. p. 367-369.
http://hdl.handle.net/10230/25203
http://dx.doi.org/10.1109/ICALT.2015.89
This paper presents a study designed to understand the effect of using a talking head in academic videos frequently used in video-based learning approaches, such Massive Open Online Courses. The experiment consisted of exposing participants to videos about different types of open software licenses. Each participant was exposed to 3 videos, each with a different condition: instructor always presented (talking head condition), only instructor's voice present (only audio condition), and instructor presented only at the beginning of the video (mixed condition). Dependent variables included cognitive load, and emotional states (valance and arousal) obtained with electroencephalography, a personal assessment of the difficulty of the material, personal opinion regarding the social presence and performance in a memory test. The results indicate an increase in the cognitive load in the mixed condition, which may have implications regarding the use of the talking head in the design of academic videos.
eng
© 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7265352
The effect of using a talking head in academic videos: An EEG study
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/25203/1/hrndz_leo_ICALT15_effe.pdf
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oai:repositori.upf.edu:10230/253512021-01-15T11:33:16Zcom_10230_5922com_10230_5542com_10230_4984col_10230_16116col_10230_4986
Repositori digital de la UPF
author
Albó, Laia
author
Hernández Leo, Davinia
author
Barceló Vicens, Jaume
author
Sanabria Russo, Luis
2015-12-09T08:56:31Z
2015-12-09T08:56:31Z
2015
Albó L, Hernández-Leo D, Barceló J, Sanabria L. Video-based learning in higher education: the flipped or the hands-on classroom? In: Proceedings of EDEN Annual Conference; 2015 Jun 9-12; Barcelona, Spain.
http://hdl.handle.net/10230/25351
Nowadays Higher Education is adopting new ways of teaching such as ways of Video-Based Learning (VBL) with the/naim of moving away from the traditional classrooms. The interest in VBL has increased as a result of new forms of/nonline education, most prominently in the case of Massive Open Online Courses. VBL has unique features that make it/nan effective Technology-Enhanced Learning approach. Furthermore it seems to support a rich and powerful model to/nimprove learning outcomes as well as learner satisfaction, but it is necessary to choose an appropriate instructional/napproach when designing VBL environments. One of the latest methods that use video as a tool for learning is Flipped/nClassrooms – or inverted classrooms- and, in many cases, it is showed that the result of introducing videos in a/nlearning design eventually converges in this type of methodology./nTo explore this context, this research presents a case study that uses a combination of the VBL and Project-Based/nLearning methodologies. The classes are face-to-face but there are no lessons: the students develop small projects in/nlabs. A set of teaching explanations are recorded in videos provided together with the descriptions of the projects. The/nobjective of this research is to study the behaviour and satisfaction of the students using the videos, their utility as well/nas the position of the professors. Participants were the students of the course “Wireless sensor networks” that took/nplace in April to June of 2014. This was designed as an optional subject in the 3rd and 4th year of the Bachelor Degrees/nin Computer Engineering, Electronic Engineering and Audio-visual Systems Engineering. Two professors were in/ncharge of the course, one of them acting as a coordinator and other as a teaching assistant./nThe study was conducted using a mixed methodology and used five instruments to gather data: two surveys (students,/nteachers), an interview (teachers), an observation protocol and two types of system log files (course delivery platform/nand video server). The gathered qualitative and quantitative data were analyzed and triangulated. One of the main/nresults is that students interacted with the course content mainly during class hours, despite the fact that they had the/nopportunity to watch the videos before the sessions. Hence the flipped classroom was not present though it was the/nexpected situation. Students used videos as support material within class while they were working on the projects at/ntheir pace. On the one hand, the incorporation of videos in class allowed students to enjoy a great flexibility to access/nthe professors’ explanation. The advantage of this flexibility questions the use of oral teacher presentations in class/nbecause of the latter are governed by schedule, meaning that the students cannot access to this explanation beyond/nthe class in the moments when their application is more significant. These conclusions are somehow in line with claims/nby other researchers saying that the role of presence-based learning may be re-thought, standard lectures do not take/nadvantage of having the students personally present in the class. However, the use of video allows access to content/n“on demand”. Moreover, the use of videos has helped students to become more autonomous. In a learning design/nbased on the student as in our case, the flexibility and autonomy that provide videos -used as support material during/nclasses- help students to have more control over their own learning process and, therefore, the role of the teacher as/nfacilitator is reaffirmed./nContrary to common belief, the use of video-based learning may not only converge in the use of flipped classroom/nmethodology. It is also possible to use the videos in a hands-on class as a support tool that encourages a more/nautonomous, flexible and significant learning. The application of a flipped or a hands-on classroom approach depends/non diverse aspects, including the nature of the course (with practical or theoretical orientations), the behaviour/nemerging from the students (depending on their needs and preferences, time constraints, etc.) and the design of the/nactivities proposed by the teachers (strongly requiring students to watch videos in a certain timeframe, e.g. previously/nto the class, or offering flexibility). Future research considering variations of these parameters will help to understand/nthe benefits and limitations of both approaches and to what extent they may coexists in VBL.
eng
This publication contributes to the Open Access movement by offering free access to its articles and permitting any users to read, download, distribute, print, search, or link to the full texts of these articles, crawl them for indexing, pass them as data to software.
Video-based learning in higher education: the flipped or the hands-on classroom?
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/25351/1/Albo_EDEN2015.pdf
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oai:repositori.upf.edu:10230/255532018-10-18T15:44:00Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Castellví Fernández, Quim
author
Banús Cobo, Jaume
author
Ivorra Cano, Antoni, 1974-
2016-01-12T12:29:22Z
2016-01-12T12:29:22Z
2015
Castellví Q, Banús J, Ivorra A. 3D Assessment of irreversible electroporation treatments in vegetal models. In: Jarm T, Kramar P, editors. 1st World Congress on Electroporation and Pulsed Electric Fields in Biology, Medicine and Food & Environmental Technologies; 2015 Sept 6-10; Portorož, Slovenia. Singapore: Springer Singapore, 2015. p. 294-297. DOI 10.1007/978-981-287-817-5_65.
http://hdl.handle.net/10230/25553
http://dx.doi.org/10.1007/978-981-287-817-5_65
Ablative techniques based on irreversible elec-troporation (IRE) have emerged as an effective cancer thera-py. In these treatments electrical pulses are delivered in order to induce irrecoverable damage to the cell membranes, thus, causing cell death. An interesting feature of electroporation treatments is the capability to predict shape and extension of lesions by means of mathematical simulations. Those predic-tion methods have been refined thought in-vivo experimental observations. Aiming at minimization of animal experiments, vegetal models have been used to easily observe the IRE out-comes. However, these observations are limited at the surface of the tissue. Here we present an improved method able to observe the inner parts of the tissue and therefore evaluate in three-dimensions the results of IRE using potatoes as vegetal models. The technique consists in using a dye solution to en-hance the IRE area in sliced potato tubers. After slice digitali-zation, the electroporated area is automatically identified and the resulting treated volume is calculated. In addition, a three-dimensional reconstruction of both healthy tissue and IRE volume is generated. The proposed evaluation technique was used to assess different pulse protocols outcomes. Numerical simulations had been carried out to compare the numerical predictions to the experimental observations. The obtained results show a clear match between experimental and simulat-ed volumes confirming the reliability of the proposed method.
eng
© Springer (The original publication is available at www.springerlink.com)
3D Assessment of irreversible electroporation treatments in vegetal models
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/25553/1/ivorra_IFMBE_3d.pdf
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oai:repositori.upf.edu:10230/255542020-04-16T08:40:19Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Qasrawi, Radwan Fayez Hasan
author
Silve, Louis Charles Arthur
author
Ivorra Cano, Antoni, 1974-
2016-01-12T12:29:26Z
2016-01-12T12:29:26Z
2015
Silve L, Qasrawi R, Ivorra A. Incorporation of the blood vessel wall into electroporation simulations. In: Jarm T, Kramar P, editors. 1st World Congress on Electroporation and Pulsed Electric Fields in Biology, Medicine and Food & Environmental Technologies; 2015 Sept 6-10; Portorož, Slovenia. Singapore: Springer Singapore, 2015. p. 223-227. DOI 10.1007/978-981-287-817-5_50.
http://hdl.handle.net/10230/25554
http://dx.doi.org/10.1007/978-981-287-817-5_50
Electroporation can be used in living tissues in order to enhance the penetration of drugs or DNA plasmids or to destroy undesirable cells and it is typically performed by applying pulsed high voltages across needle electrodes. When used for ablation, it is often claimed that, in contrast with thermal ablation techniques, electroporation is not significant-ly impacted by the presence of large blood vessels because the heat sinking characteristic of these is not relevant for the elec-tric field distribution. However, large blood vessels do distort the electric field distribution because of their high inner con-ductivity and should be modeled during treatment planning. For such purpose, vessels may be simply modeled as homoge-neous regions whose conductivity is equal to that of the blood. Nevertheless, vessels are not just blood filled cavities within parenchyma; blood vessels contain a layered wall. The purpose of the present study is to check whether the blood vessel wall needs to be incorporated into the simulations. For that, a vessel wall electrical model has been implemented and it has been incorporated into 2D and 3D simulations in which treatment of a region that comprises a 5 mm thick artery within liver was modeled. The three main layers of a vessel wall (the intima, the media and the adventitia) were modeled as homogeneous ma-terials whose conductivity depends on the electric field magni-tude. The simulations show that the electric field error when the wall model is not incorporated is only marginally signifi-cant at the close vicinity of the vessel for low applied fields. Errors are insignificant beyond 1 or 2 mm. We conclude that in most electroporation scenarios it will not be necessary to simulate the blood vessel wall.
eng
© Springer (The original publication is available at www.springerlink.com)
Incorporation of the blood vessel wall into electroporation simulations
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http://repositori.upf.edu/bitstream/10230/25554/1/ivorra_IFMBE_inco.pdf
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oai:repositori.upf.edu:10230/256772018-01-24T08:15:59Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Srinivasamurthy, Ajay
author
Caro Repetto, Rafael
author
Sundar, Harshavardhan
author
Serra, Xavier
2016-01-28T08:12:56Z
2016-01-28T08:12:56Z
2014
Srinivasamurthy A, Caro Repetto R, Sundar H, Serra X. Transcription and recognition of syllable based percussion patterns: the case of Beijing Opera. In: Proceedings of the 15th Conference of/nthe International Society for Music/nInformation Retrieval (ISMIR 2014); 2014 Oct 27-31; Taipei, Taiwan. Taipei: International Society for Music Information Retrieval; 2014. p. 431-436.
http://hdl.handle.net/10230/25677
In many cultures of the world, traditional percussion music/nuses mnemonic syllables that are representative of the timbres/nof instruments. These syllables are orally transmitted/nand often provide a language for percussion in those music/ncultures. Percussion patterns in these cultures thus have/na well defined representation in the form of these syllables,/nwhich can be utilized in several computational percussion/npattern analysis tasks. We explore a connected word/nspeech recognition based framework that can effectively/nutilize the syllabic representation for automatic transcription/nand recognition of audio percussion patterns. In particular,/nwe consider the case of Beijing opera and present/na syllable level hidden markov model (HMM) based system/nfor transcription and classification of percussion patterns./nThe encouraging classification results on a representative/ndataset of Beijing opera percussion patterns supports/nour approach and provides further insights on the utility of/nthese syllables for computational description of percussion/npatterns.
eng
© Ajay Srinivasamurthy, Rafael Caro Repetto, Harshavardhan/nSundar, Xavier Serra./nLicensed under a Creative Commons Attribution 4.0 International License/n(CC BY 4.0). Attribution: Ajay Srinivasamurthy, Rafael Caro Repetto,/nHarshavardhan Sundar, Xavier Serra. “Transcription and Recognition of/nSyllable Based Percussion Patterns: The Case of Beijing Opera”, 15th/nInternational Society for Music Information Retrieval Conference, 2014.
Transcription and recognition of syllable based percussion patterns: the case of Beijing Opera
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/25677/1/Srinivasamurthy_ISMIR2014.pdf
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oai:repositori.upf.edu:10230/256782018-01-24T08:16:18Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Tian, Mi
author
Srinivasamurthy, Ajay
author
Sandler, Mark
author
Serra, Xavier
2016-01-28T08:12:59Z
2016-01-28T08:12:59Z
2014
Tian M, Srinivasamurthy A, Sandler M, Serra X. A study of instrument-wise onset detection in Beijing Opera percussion ensembles. In: In: 2014 International Conference on Acoustics, Speech and Signal Processing (ICASSP); 2014 May 4-9; Florence, Italy. Piscataway, NJ: IEEE, 2014. p. 2159-2163. DOI 10.1109/ICASSP.2014.6853981
http://hdl.handle.net/10230/25678
http://dx.doi.org/10.1109/ICASSP.2014.6853981
Note onset detection and instrument recognition are two of the most investigated tasks in Music Information Retrieval (MIR). Various detection methods have been proposed in previous research for western music, with less focus on other music cultures of the world. In this paper, we focus on onset detection for percussion instruments in Beijing Opera, a major genre of Chinese traditional music. A dataset of individual audio samples of four primary percussion instruments is used to obtain the spectral bases for each instrument. With these bases, we separate the input percussion ensemble recordings into its spectral sources and their activations using a Non-negative Matrix Factorization (NMF) based algorithm. A simple onset detection conducted on each NMF activation presents satisfactory overall detection rates, and provides us valuable implications and suggestions for future development of drum transcription and percussion pattern analysis in Beijing Opera.
eng
© 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpls/icp.jsp?arnumber=6853981
A study of instrument-wise onset detection in Beijing Opera percussion ensembles
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/25678/1/Tian_ICASSP2014.pdf
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oai:repositori.upf.edu:10230/256792018-01-24T08:16:36Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Srinivasamurthy, Ajay
author
Serra, Xavier
2016-01-28T08:13:03Z
2016-01-28T08:13:03Z
2014
Srinivasasmurthy A, Serra X. A supervised approach to hierarchical metrical cycle tracking from audio music recordings. In: 2014 International Conference on Acoustics, Speech and Signal Processing (ICASSP); 2014 May 4-9; Florence, Italy. Piscataway, NJ: IEEE, 2014. p. 5237-5241. DOI 10.1109/ICASSP.2014.6854598
http://hdl.handle.net/10230/25679
http://dx.doi.org/10.1109/ICASSP.2014.6854598
A supervised approach to metrical cycle tracking from audio is presented,/nwith a main focus on tracking the tāḷa, the hierarchical cyclic/nmetrical structure in Carnatic music. Given the tāḷa of a piece, we aim/nto estimate the akṣara (lowest metrical pulse), the akṣara period, and/nthe sama (first pulse of the tāḷa cycle). Starting with percussion enhanced/naudio, we estimate the akṣara pulse period from a tempogram/ncomputed using an onset detection function. A novelty function is/ncomputed using a self similarity matrix constructed using frame level/naudio features. These are then used to estimate possible akṣara and/nsama candidates, followed by a candidate selection based on periodicity/nconstraints, which leads to the final estimates. The algorithm/nis tested on an annotated collection of 176 pieces spanning four different/ntāḷas. Though applied to Carnatic music, the framework presented/nis general and can be extended to other music cultures with/ncyclical metrical structures.
eng
© 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpls/icp.jsp?arnumber=6854598
A supervised approach to hierarchical metrical cycle tracking from audio music recordings
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/25679/1/Srinivasamurthy_icassp2014.pdf
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oai:repositori.upf.edu:10230/256972018-01-24T08:15:43Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Gupta, Swapnil
author
Srinivasamurthy, Ajay
author
Kumar, Manoj
author
Murthy, Hema A.
author
Serra, Xavier
2016-01-29T08:03:41Z
2016-01-29T08:03:41Z
2015
Gupta S, Srinivasamurthy A, Kumar M, Murthy HA, Serra X. Discovery of syllabic percussion patterns in tabla solo recordings. In: Proceedings of the 16th International Society for Music Information Retrieval Conference (ISMIR); 2015 Oct 26-30; Málaga, Spain. [Málaga]: International Society for Music Information Retrieval, 2015. p. 385-391.
http://hdl.handle.net/10230/25697
We address the unexplored problem of percussion pattern/ndiscovery in Indian art music. Percussion in Indian art music uses onomatopoeic oral mnemonic syllables for the transmission of repertoire and technique. This is utilized for the/ntask of percussion pattern discovery from audio recordings./nFrom a parallel corpus of audio and expert curated scores/nfor 38 tabla solo recordings, we use the scores to build a/nset of most frequent syllabic patterns of different lengths./nFrom this set, we manually select a subset of musically representative query patterns. To discover these query patterns/nin an audio recording, we use syllable-level hidden Markov/nmodels (HMM) to automatically transcribe the recording/ninto a syllable sequence, in which we search for the query/npattern instances using a Rough Longest Common Subsequence (RLCS) approach. We show that the use of RLCS/nmakes the approach robust to errors in automatic transcrip-/ntion, significantly improving the pattern recall rate and F-/nmeasure. We further propose possible enhancements to improve the results.
eng
© Swapnil Gupta, Ajay Srinivasamurthy, Manoj Kumar,/nHema A. Murthy, Xavier Serra./nLicensed under a Creative Commons Attribution 4.0 International License/n(CC BY 4.0). Attribution: Swapnil Gupta, Ajay Srinivasamurthy,/nManoj Kumar, Hema A. Murthy, Xavier Serra. “Discovery of Syllabic/nPercussion Patterns in Tabla Solo Recordings”, 16th International Society/nfor Music Information Retrieval Conference, 2015.
Discovery of syllabic percussion patterns in tabla solo recordings
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/25697/1/Gupta_Discovery.pdf
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oai:repositori.upf.edu:10230/257002018-01-24T08:15:42Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Karaosmanoğlu, M. Kemal
2016-01-29T10:32:17Z
2016-01-29T10:32:17Z
2012
Karaosmanoğlu K. A Turkish makam music symbolic database for music information retrieval: SymbTr. In: Proceedings of 13th International Society for Music Information Retrieval Conference; 2012 October 8-12; Porto, Portugal. Porto: ISMIR, 2012. p. 223–228.
http://hdl.handle.net/10230/25700
Turkish makam music needs a comprehensive database/nfor public consumption, to be used in MIR. This article/nintroduces SymbTr, a Turkish Makam Music Symbolic/nRepresentation Database, aimed at filling this void./nSymbTr consists of musical information in text, PDF, and/nMIDI formats. Raw data, drawn from reliable sources,/nand consisting of 1,700 musical pieces in Turkish art and/nfolk music was processed featuring distinct examples in/n155 diverse makams, 100 usuls and 48 forms. Special/ncare was devoted to selection of works that scatter across/na broad historical time span and were among those still/nperformed today. Total number of musical notes in these/npieces was 630,000, corresponding to a nominal playback/ntime of 72 hours. Synthesized sounds particular to Turkish/nmakam music were used in MIDI playback, and transcription//nplayback errors were corrected by input from/nexperts. Symbolic representation data, open to the public,/nis output from a computer program developed exclusively/nfor Turkish makam music. SymbTr was designed as a/nwholesome representation of aforementioned distinct auditory/nand visual features that distinguish Turkish makam/nmusic from other music genres. This article explains the/ndatabase format in detail, and also provides, through examples,/nstatistical information on pitch/interval allocation/nand distribution.
eng
© 2012 International Society for Music Information Retrieval
A Turkish makam music symbolic database for music information retrieval: SymbTr
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/25700/1/Karaosmanoglu_ISMIR_2012.pdf
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oai:repositori.upf.edu:10230/257012018-01-24T08:16:00Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Benetos, Emmanouil
author
Holzapfel, Andre
2016-01-29T10:32:20Z
2016-01-29T10:32:20Z
2013
Benetos E, Holzapfel A. Automatic transcription of Turkish makam music. In: Proceedings of the 14th International Society for Music Information Retrieval Conference, ISMIR; 2013 Nov 4-8; Curitiba, Brazil. [Curitiba]: International Society for Music Information Retrieval; 2013. p. 355-360.
http://hdl.handle.net/10230/25701
In this paper we propose an automatic system for transcribing/nmakam music of Turkey. We document the specific/ntraits of this music that deviate from properties that/nwere targeted by transcription tools so far and we compile/na dataset of makam recordings along with aligned microtonal/nground-truth. An existing multi-pitch detection algorithm/nis adapted for transcribing music in 20 cent resolution,/nand the final transcription is centered around the/ntonic frequency of the recording. Evaluation metrics for/ntranscribing microtonal music are utilized and results show/nthat transcription of Turkish makam music in e.g. an interactive/ntranscription software is feasible using the current/nstate-of-the-art.
eng
© 2013 International Society for Music Information Retrieval.
Automatic transcription of Turkish makam music
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/25701/1/Benetos_ISMIR_2013.pdf
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oai:repositori.upf.edu:10230/257562018-01-24T08:16:29Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Anantapadmanabhan, Akshay
author
Bellur, Ashwin
author
Murthy, Hema A.
2016-02-09T07:55:46Z
2016-02-09T07:55:46Z
2013
Anantapadmanabhan A, Bellur A, Murthy HA. Modal analysis and transcription of strokes of the mridangam using non-negative matrix factorization. In: 2013 IEEE International Conference on Acoustics, Speech and Signal Processing: proceedings; 2013 May 26-31; Vancouver, USA. Piscataway, NJ: IEEE, 2013. p. 181-185. DOI 10.1109/ICASSP.2013.6637633
http://hdl.handle.net/10230/25756
http://dx.doi.org/10.1109/ICASSP.2013.6637633
In this paper we use a Non-negative Matrix Factorization/n(NMF) based approach to analyze the strokes of the mri-/ndangam, a South Indian hand drum, in terms of the normal/nmodes of the instrument. Using NMF, a dictionary of spectral/nbasis vectors are first created for each of the modes of the/nmridangam. The composition of the strokes are then studied/nby projecting them along the direction of the modes using/nNMF. We then extend this knowledge of each stroke in terms/nof its basic modes to transcribe audio recordings. Hidden/nMarkov Models are adopted to learn the modal activations for/neach of the strokes of the mridangam, yielding up to/n88,40%/naccuracy during transcription.
eng
© 2013 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpls/icp.jsp?arnumber=6637633
Modal analysis and transcription of strokes of the mridangam using non-negative matrix factorization
info:eu-repo/semantics/conferenceObject
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http://repositori.upf.edu/bitstream/10230/25756/1/Anantapadmanabhan_ICASSP_2013.pdf
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oai:repositori.upf.edu:10230/257572018-01-24T08:16:46Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Kuriakose, Jom
author
Kumar, J Chaitanya
author
Sarala, Padi
author
Murthy, Hema A.
author
Sivaraman, Umayalpuram K
2016-02-09T07:55:49Z
2016-02-09T07:55:49Z
2015
Kuriakose J, Kumar JC, Sarala P, Murthy HA, Sivaraman UK. Akshara transcription of mrudangam strokes in carnatic music. In: 2015 Twenty First National Conference on Communication (NCC); 2015 Feb 27 - March 1; Mumbai, India. Piscataway: IEEE; 2015. p. 1-6. DOI 10.1109/NCC.2015.7084906
http://hdl.handle.net/10230/25757
http://dx.doi.org/10.1109/NCC.2015.7084906
Percussion instruments play a significant role in/nCarnatic music concerts. The percussion artist enjoys a great/ndegree of freedom in improvising within the defined tala/nstructure/nof a composition. The objective of this paper is to transcribe the/nimprovisations, treating the percussion strokes as syllables or/naksharas./nOnset detection is performed to segment the waveform at/neach/nakshara/n. Using the transcriptions from the training data,/na three-state Hidden Markov Model is built for each/nakshara/n./nThe language model is derived from the training data. Testing/nis also performed isolated style using onset detection to segment/nthe phrase, and the language model to correct the transcription./nTranscription is performed on both concert recordings and studio/nrecordings. This technique yields upto/n≈/n96%/naccuracy on studio/nrecordings and/n≈/n76%/naccuracy for concert recordings./nAs the mrudangam/n1/nis an instrument that is based on tonic;/ntonic normalised features, namely, Cent Filterbank Cepstral/ncoefficients are used. It is shown that tonic normalisation helps/nin transcription across different tonics.
eng
© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The final published article can be found at http://ieeexplore.ieee.org/xpls/icp.jsp?arnumber=7084906
Akshara transcription of mrudangam strokes in carnatic music
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/25757/1/Kuriakose_NCC_2015.pdf
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oai:repositori.upf.edu:10230/260312018-01-24T08:08:48Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Soler-Adillon, Joan, 1978-
author
Ferrer, Jaume
author
Parés, Narcís, 1966-
2016-03-30T07:03:04Z
2016-03-30T07:03:04Z
2009
Soler-Adillon J, Ferrer J, Parés N. A novel approach to interactive playgrounds: the interactive slide project. In: Paolini P, Garzotto F, editors. Proceedings of the 8th international Conference on interaction Design and Children; 2009 June 3-5; Como, Italy. New York: ACM; 2009. p. 131-139. DOI 10.1145/1551788.1551811
978-1-60558-395-2
http://hdl.handle.net/10230/26031
http://dx.doi.org/10.1145/1551788.1551811
The incipient research on interactive playgrounds is a promising field that can enhance in many ways growth, health and education of children and youngsters. In this paper, we present a novel approach to interactive playgrounds by describing the physical and interaction design of a new platform: the Interactive Slide. We concentrate on the main design issues and relate the acceptance of this platform; specifically through two applications that we have designed for it: one for children 4 to 8 years and a second for youngsters 10 to 14. This platform can provide a fertile ground for creative, leisure and educational applications and experiences. However, our main focus is on countering lack of physical activity and lack of socialization in children, which are important issues in all developed countries (and some underdeveloped ones) and especially important in Europe because of their accelerated pace of incidence.
eng
© ACM, 2009. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in Proceedings of the 8th International Conference on Interaction Design and Children. http://doi.acm.org/10.1145/1551788.1551811
A novel approach to interactive playgrounds: the interactive slide project
info:eu-repo/semantics/conferenceObject
URL
http://repositori.upf.edu/bitstream/10230/26031/1/soleradillon_idc2009_novel.pdf
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oai:repositori.upf.edu:10230/260352018-01-24T08:31:27Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Rankothge, Windhya
author
Ma, Jiefei
author
Le, Franck
author
Russo, Alessandra
author
Lobo, Jorge
2016-03-31T07:05:58Z
2016-03-31T07:05:58Z
2015
Rankothge W, Ma J, Le F, Russo A, Lobo J. Towards making network function virtualization a cloud computing service. In: Proceedings of the/n2015 IFIP/IEEE International Symposium on Integrated Network Management (IM); 2015 May 11-15; Ottawa, Canada. IEEE; 2015. p. 89-97. DOI 10.1109/INM.2015.7140280
http://hdl.handle.net/10230/26035
http://dx.doi.org/10.1109/INM.2015.7140280
By allowing network functions to be virtualized and run on commodity hardware, NFV enables new properties (e.g., elastic scaling), and new service models for Service Providers, Enterprises, and Telecommunication Service Providers. However, for NFV to be offered as a service, several research problems still need to be addressed. In this paper, we focus and propose a new service chaining algorithm. Existing solutions suffer two main limitations: First, existing proposals often rely on mixed Integer Linear Programming to optimize VM allocation and network management, but our experiments show that such approach is too slow taking hours to find a solution. Second, although existing proposals have considered the VM placement and network configuration jointly, they frequently assume the network configuration cannot be changed. Instead, we believe that both computing and network resources should be able to be updated concurrently for increased flexibility and to satisfy SLA and Qos requirements. As such, we formulate and propose a Genetic Algorithm based approach to solve the VM allocation and network management problem. We built an experimental NFV platform, and run a set of experiments. The results show that our proposed GA approach can compute configurations to to three orders of magnitude faster than traditional solutions.
eng
© 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpls/icp.jsp?arnumber=7140280
Towards making network function virtualization a cloud computing service
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oai:repositori.upf.edu:10230/260362018-05-02T09:30:00Zcom_10230_5922com_10230_5542col_10230_16116
Repositori digital de la UPF
author
Rankothge, Windhya
author
Le, Franck
author
Russo, Alessandra
author
Lobo, Jorge
2016-03-31T07:06:02Z
2016-03-31T07:06:02Z
2015
Rankothge W, Ma J, Le F, Russo A, Lobo J. Experimental results on the use of genetic algorithms for scaling virtualized network functions. In: 2015 IEEE Conference on Virtualization and Software Defined Network (NFV-SDN); 2015 Nov 18-21; San Francisco, CA. IEEE; 2015. p. 47-53. DOI 10.1109/NFV-SDN.2015.7387405
http://hdl.handle.net/10230/26036
http://dx.doi.org/10.1109/NFV-SDN.2015.7387405
Network Function Virtualization (NFV) is bringing closer the possibility to truly migrate enterprise data centers into the cloud. However, for a Cloud Service Provider to offer such services, important questions include how and when to scale out/in resources to satisfy dynamic traffic/application demands. In previous work [1], we have proposed a platform called Network Function Center (NFC) to study research issues related to NFV and Network Functions (NFs). In a NFC, we assume NFs to be implemented on virtual machines that can be deployed in any server in the network. In this paper we present further experiments on the use of Genetic Algorithms (GAs) for scaling out/in NFs when the traffic changes dynamically. We combined data from previous empirical analyses [2], [3] to generate NF chains and for getting traffic patterns of a day and run simulations of resource allocation decision making. We have implemented different fitness functions with GA and compared their performance when scaling out/in over time.
eng
© 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpls/icp.jsp?arnumber=7387405
Experimental results on the use of genetic algorithms for scaling virtualized network functions
info:eu-repo/semantics/conferenceObject
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oai:repositori.upf.edu:10230/260842023-03-21T16:42:43Zcom_10230_5922com_10230_5542com_10230_4984col_10230_16116col_10230_4986
Repositori digital de la UPF
author
Moreno, Verónica
author
Hernández Leo, Davinia
2016-04-14T07:08:41Z
2016-04-14T07:08:41Z
2016
Moreno V, Hernández-Leo D. Graduados TIC de la Escuela Superior Politécnica: Universidad Pompeu Fabra. En: IX Congreso Iberoamericano de Docencia Universitaria (CIDU); 2016 Mar 31-Abr 2; Murcia, España. 6 p.
http://hdl.handle.net/10230/26084
Competencias transversales como el trabajo en equipo o el dominio del inglés son objeto/nexplicitico de formación en diferentes asignaturas de los planes de estudio de las Ingenierías/nTIC de la Universitat Pompeu Fabra (Grado de Ingeniería Telemática, de Sistemas Audiovisuales/ne Informática). Para recibir feedback acerca de, entre otros elementos, la percepción de/nutilidad y satisfacción del trabajo e impacto de estas competencias durante la formación y el/ndesarrollo profesional de nuestro estudiantado se realiza con los graduados1 TIC un estudio/nespecífico. En el marco de dicho estudio, coordinado por la Unidad de Apoyo a la Calidad y la/nInnovación Docente (USQUID) de la Escuela Superior Politécnica (ESUP) y apoyado por el/nPrograma de Ayudas PlaQUID de la UPF, se recogen datos e informaciones de carácter/nacadémico -incluidos los relacionados con el trabajo en equipo y la competencia lingüística/ninglés- y de carácter personal y profesional. En esta comunicación se presenta una síntesis de/nlos procesos formativos de dichas competencias así como los resultados obtenidos a través de/nla evaluación llevada a cabo e inscrita en el estudio descrito anteriormente que cuenta con una/nparticipación superior al 50% de los graduados de primera y segunda promoción.
spa
© Els Autors. Aquest document està disponible sota una llicència Creative Commons
Graduados TIC de la Escuela Superior Politécnica: Universidad Pompeu Fabra
info:eu-repo/semantics/conferenceObject
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oai:repositori.upf.edu:10230/261542020-11-09T08:47:59Zcom_10230_5922com_10230_5542col_10230_16116col_10230_8581
Repositori digital de la UPF
author
Becerra Fajardo, Laura
author
Ivorra Cano, Antoni, 1974-
2016-04-21T12:23:44Z
2016-04-21T12:23:44Z
2015
Becerra-Fajardo L, Ivorra A. Charge counter for performing active charge-balance in miniaturized electrical stimulators. In: Lackovic I, Vasic D, editors. 6th European Conference of the International Federation for Medical and Biological Engineering; 2015 Sept 7-11; Dubrovnik, Croatia. Switzerland: Springer; 2015. p.256-59. (IFMBE Proceedings; no. 45). doi:10.1007/978-3-319-11128-5_64
1680-0737
http://hdl.handle.net/10230/26154
http://dx.doi.org/10.1007/978-3-319-11128-5_64
Functional Electrical Stimulation (FES) has been explored in order to restore the capabilities of the nervous system in patients that suffer from paralysis. This area of research and of clinical practice greatly benefits from any technological improvement yielding miniaturization. In this regard, we recently proposed and demonstrated an innovative electrical stimulation method based on implanted microstimulators that operate as rectifiers of bursts of innocu-ous high frequency current supplied by skin electrodes, gener-ating low frequency currents that are capable of stimulating excitable tissues. We envision flexible ultrathin implants (di-ameters < 300 μm) containing ASICs that have advanced ca-pabilities, such as addressability and current control. As min-iaturization is the main aim of this method, the use of bulky DC-blocking capacitors (e.g. 10 μF) to accomplish zero net charge injection and avoid electrochemical tissue and electrode damage is highly inconvenient. As an alternative, here we present an active charge-balance method based on the use of a digital charge quantifier, whose operation is inspired in the functioning of the tipping bucket rain gauge. The system moni-tors the charge injection, matching the charge injected in the cathodal phase, with the charge injected in the anodal phase, generating a biphasic current waveform that adapts itself to possible current source mismatches. We have implemented a prototype built with discrete components which uses a capaci-tor of only 100 pF for the charge counter.
eng
© Springer The final publication is available at Springer via/nhttp://dx.doi.org/10.1007/978-3-319-11128-5_64
Charge counter for performing active charge-balance in miniaturized electrical stimulators
info:eu-repo/semantics/conferenceObject
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