Browsing by Author "Universitat Pompeu Fabra"

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  • A comparison of full-rate full-diversity 2x2 space-time codes for WiMAX systems
    Sezginer, Serdar; Sari, Hikmet; Biglieri, Ezio (Institute of Electrical and Electronics Engineers (IEEE), 2008)
    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 ...
  • A context-based methodology for integrating Web 2.0 services in learning scenarios
    Pérez Sanagustín, Maria del Mar; Santos Rodríguez, Patrícia; Moghnie, Ayman; Hernández Leo, Davinia; Blat, Josep (Inderscience Enterprises Ltd, 2009)
    The emergence of the Web 2.0 technologies in the last years have/nchanged the way people interact with knowledge. Services for cooperation and/ncollaboration have placed the user in the centre of a new knowledge building/nspace. ...
  • A genomic analysis identifies a novel component in the genetic structure of sub-Saharan African populations
    Sikora, Martin, 1976-; Laayouni, Hafid, 1968-; Calafell i Majó, Francesc; Comas, David, 1969-; Bertranpetit, Jaume, 1952- (Nature Publishing Group, 2011)
    Studies of large sets of SNP data have proven to be a powerful tool in the analysis of the genetic structure of human populations. In this work, we analyze genotyping data for 2,841 SNPs in 12 Sub-Saharan African populations, ...
  • A knowledge based signal processing approach to tonic identification in indian classical music
    Bellur, Ashwin; Ishwar, Vignesh; Serra, Xavier; Murthy, Hema A. (Universitat Pompeu Fabra, 2012)
    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 ...
  • A method for extracting semantic information from on-line art music discussion forums
    Sordo, Mohamed; Serrà Julià, Joan; Koduri, Gopala Krishna; Serra, Xavier (Universitat Pompeu Fabra, 2012)
    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 ...
  • A Musically aware system for browsing and interacting with audio music collections
    Sordo, Mohamed; Koduri, Gopala Krishna; Sentürk, Sertan; Gulati, Sankalp; Serra, Xavier (Universitat Pompeu Fabra, 2012)
    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 ...
  • A systolic array for linear MIMO detection based on an all-swap lattice reduction algorithm
    Wang, Ni-Chun; Biglieri, Ezio; Yao, Kung (Institute of Electrical and Electronics Engineers (IEEE), 2009)
    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 ...
  • A two-stage approach for tonic identification in indian art music
    Gulati, Sankalp; Salamon, Justin; Serra, Xavier (Universitat Pompeu Fabra, 2012)
    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 ...
  • A unified treatment of optimum pilot overhead in multipath fading channels
    Jindal, Nihar; Lozano Solsona, Angel (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    The optimization of the pilot overhead in single-user 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 ...
  • A variant in the gene FUT9 is associated with susceptibility to placental malaria infection
    Sikora, Martin, 1976-; Ferrer Admetlla, Anna; Laayouni, Hafid, 1968-; Menéndez, Clara; Mayor, Alfredo; Bardaji, Azucena; Sigauque, Betuel; Mandomando, Inacio; Alonso, Pedro L.; Bertranpetit, Jaume, 1952-; Casals López, Ferran (Oxford University Press, 2009)
    Malaria in pregnancy forms a substantial part of the worldwide burden of malaria, with an estimated annual death toll of up to 200,000 infants, as well as increased maternal morbidity and mortality. Studies of genetic ...
  • A WiMAX-based implementation of network MIMO for indoor wireless systems
    Venkatesan, Sivarama; Huang, Howard C.; Lozano Solsona, Angel; Valenzuela, R. A. (Hindawi, 2009)
    It is well known that multiple-input multiple-output (MIMO) techniques can bring numerous benefits, such as higher spectral efficiency, to point-to-point wireless links. More recently, there has been interest in extending ...
  • An analysis of visual adaptation and contrast perception for tone mapping
    Ferradans Ramonde, Sira; Bertalmío, Marcelo; Provenzi, Edoardo; Caselles, Vicente (Institute of Electrical and Electronics Engineers (IEEE), 2011)
    Tone Mapping is the problem of compressing the range of a High-Dynamic Range image so that it can be displayed in a Low-Dynamic Range screen, without losing or introducing novel details: The final image should produce in ...
  • An approach for linking score and audio recordings in Makam music of Turkey
    Sentürk, Sertan; Holzapfel, Andre; Serra, Xavier (Universitat Pompeu Fabra, 2012)
    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 ...
  • Applause identification and its relevance to archival of Carnatic music
    Sarala, Padi; Ishwar, Vignesh; Bellur, Ashwin; Murthy, Hema A. (Universitat Pompeu Fabra, 2012)
    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 ...
  • Automatic low baseline stereo in urban areas
    Igual, Laura; Preciozzi, Javier; Garrido, Luís; Almansa, Andrés; Caselles, Vicente; Rougé, Bernard (AIMS American Institute of Mathematical Sciences, 2007)
    In this work we propose a new automatic methodology for computing accurate digital elevation models (DEMs) in urban environments from low baseline stereo pairs that shall be available in the future from a new kind of earth ...
  • Between pluralism and majoritarianism: the European Court of Human Rights on religious symbols and education
    Ungureanu, Camil (Centre d'Informació i Documentació Internacionals a Barcelona (CIDOB)Grup de Recerca Interdisciplinari sobre Immigració (GRITIM-UPF), 2011)
    How is it possible to square the development of a consistent European/napproach to religious diversity with the recognition of the sometimes-conflictive/nplurality of state-religion models? The Court´s support of the ...
  • BiblioLAB. Marató d’idees
    Baiges, Ana; España Casado, Germán; Magre Ferran, Anna; Miralles Cisquer, Montserrat; Polo Polo, Javier; Raventós Catasús, Carme; Regot Giner, Anna (2016-03)
    En aquesta comunicació s’explica l’organització i desenvolupament del BiblioLAB. Marató d’idees, una trobada col∙laborativa d’estudiants que va tenir lloc el 18 i 19 de novembre del 2015 a la Biblioteca/CRAI del Poblenou ...
  • La Biblioteca de la UPF: 1990-1996
    Cabo Rigol, Mercè; Espinós Ferrer, Montserrat; Sort Ticó, Josep (Federación Española de Asociaciones de Archiveros, Bibliotecarios, Arqueólogos, Museólogos y Documentalistas, 1996)
  • Bibliotecarios e informáticos: sumando esfuerzos, aprendiendo juntos
    Cabo Rigol, Mercè; Espinós Ferrer, Montserrat (Centro Latinoamericano de Administración para el Desarrollo, 2004)
    La Universitat Pompeu Fabra, después de una fase de revisión y análisis de sus estructuras, inició a finales del año 2003 una reestructuración organizativa. Esta reestructuración se inscribe en un marco más amplio de medidas ...
  • Capacity-achieving input covariance for single-user multi-antenna channels
    Tulino, Antonia M.; Lozano Solsona, Angel; Verdú, Sergio (Institute of Electrical and Electronics Engineers (IEEE), 2006)
    We characterize the capacity-achieving input covariance for multi-antenna channels known instantaneously at the receiver and in distribution at the transmitter. Our characterization, valid for arbitrary numbers of antennas, ...