Browsing Articles (Departament de Tecnologies de la Informació i les Comunicacions) by Title

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Browsing Articles (Departament de Tecnologies de la Informació i les Comunicacions) by Title

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  • Geers, Arjan; Larrabide, Ignacio; Radaelli, Alessandro Guido; Bogunovic, Hrvoje; Kim, Minsuok; Gratama van Andel, Hugo A. F.; Majoie, Charles B. L. M.; VanBavel, E; Frangi Caregnato, Alejandro (American Society of Neuroradiology, 2011)
    Patient-specific simulations of the hemodynamics in intracranial aneurysms can be constructed by using image-based vascular models and CFD techniques. This work evaluates the impact of the choice of imaging technique on ...
  • Lozano Solsona, Angel (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    In a MIMO layered architecture, several codewords are transmitted from a multiplicity of antennas. Although the spectral efficiency is maximized if the rates of these codewords are separately controlled, the feedback ...
  • Canadas Quesada, Francisco Jesus; Vera Candeas, Pedro; Ruiz Reyes, Nicolas; Carabias Orti, Julio; Cabanas Molero, Pablo (SpringerOpen, 2014)
    In this paper, unsupervised learning is used to separate percussive and harmonic sounds from monaural non-vocal polyphonic signals. Our algorithm is based on a modified non-negative matrix factorization (NMF) procedure ...
  • Serrà Julià, Joan; Kantz, Holger; Serra, Xavier; Andrzejak, Ralph Gregor (Institute of Electrical and Electronics Engineers (IEEE), 2011)
    Intuitively, music has both predictable and unpredictable components. In this work we assess this qualitative statement in a quantitative way using common time series models fitted to state-of-the-art music descriptors. ...
  • Girardin, Fabien; Vaccari, Andrea; Gerber, Alexander; Biderman, Assaf; Ratti, Carlo (Joint Research Centre of the European Commission, 2009)
    In the past, sensors networks in cities have been limited to fixed sensors, embedded in particular locations, under centralised control. Today, new applications can leverage wireless devices and use them as sensors to ...
  • Santos Rodríguez, Patrícia; Pérez Sanagustín, Maria del Mar; Hernández Leo, Davinia; Blat, Josep (Elsevier, 2011)
    Test-based assessment tools are mostly focused on the use of computers. However, advanced Information and Communication Technologies, such as handheld devices, opens up the possibilities of creating new assessment scenarios, ...
  • Sadat Schaffai, Jasmin, 1982-; Martin, Clara D.; Costa Martínez, Albert, 1970-; Alario, F.-Xavier (François -Xavier), (Elsevier, 2014)
    A crucial step for understanding how lexical knowledge is represented is to describe the relative similarity of lexical items, and how it influences language processing. Previous studies of the effects of form similarity ...
  • Chicharro Raventós, Daniel; Andrzejak, Ralph Gregor (American Physical Society, 2009)
    To detect directional couplings from time series various measures based on distances in reconstructed state spaces were introduced. These measures can, however, be biased by asymmetries in the dynamics' structure, noise ...
  • Deco, Gustavo; Ponce-Alvarez, Adrián; Mantini, Dante; Romani, Gian Luca; Hagmann, Patric; Corbetta, Maurizzio (Society for Neuroscience, 2013)
    Brain fluctuations at rest are not random but are structured in spatial patterns of correlated activity across different brain areas. The question of how resting-state functional connectivity (FC) emerges from the brain’s ...
  • Hernández Leo, Davinia; Asensio-Pérez, Juan I.; Dimitriadis, Yannis; Bote-Lorenzo, Miguel L.; Jorrín-Abellán, Iván M.; Villasclaras-Fernández, Eloy D. (ACTA Press, 2005)
    Designs of CSCL (Computer Supported Collaborative Learning) activities should be flexible, effective and customizable to particular learning situations. On the other hand, structured designs aim to create favourable ...
  • Senden, Mario; Deco, Gustavo; Reus, Marcel A. de; Goebel, Rainer; Heuvel, Martijn van den (Elsevier, 2014)
    Brain function relies on the flexible integration of a diverse set of segregated cortical modules, with the structural connectivity of the brain being a fundamentally important factor in shaping the brain‟s functional ...
  • Hernández Leo, Davinia; Louys, Amélie; Schoonenboom, Judith; Pérez Sanagustín, Maria del Mar; Lemmers, Ruud (International Forum of Educational Technology & Society, 2009)
    This paper describes a pilot study centred on the technology-enhanced self-development of competences in lifelong learning education carried out in the challenging context of the Association of Participants Àgora. The pilot ...
  • Angelosante, Daniele; Biglieri, Ezio; Lops, Marco (Institute of Electrical and Electronics Engineers (IEEE), 2009)
    Wireless “MIMO” systems, employing multiple transmit and receive antennas, promise a significant increase of channel capacity, while orthogonal frequency-division multiplexing (OFDM) is attracting a good deal of attention ...
  • Amiri Nezhad, Maryam; Guerrero Zapata, Manel; Bellalta, Boris; Cerdà Alabern, Llorenç (SpringerOpen, 2014)
    In the context of wireless network simulation, many simulators are capable of evaluating the performance of single-channel network protocols, but they need many modifications to be able to simulate multi-radio multi-channel ...
  • Sanjuán, Ana; Ventura Campos, Noelia; González, Julio; Palomar García, María Ángeles; Rodríguez Pujadas, Aina; Sebastián Gallés, Núria; Deco, Gustavo; Ávila, César (Society for Neuroscience, 2013)
    Can learning capacity of the human brain be predicted from initial spontaneous functional connectivity (FC) between brain areas involvedinatask?Wecombinedtask-relatedfunctionalmagneticresonanceimaging(fMRI)andresting-st ...
  • Maestre Gómez, Esteban; Blaauw, Merlijn; Bonada, Jordi; Guaus, Enric; Pérez, Alfonso (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    Excitation-continuous music instrument control patterns are often not explicitly represented in current sound synthesis techniques when applied to automatic performance. Both physical model-based and sample-based synthesis ...
  • Cabral, Joana R. B.; Fernandes, Henrique M.; Van Hartevelt, Tim J.; James, Anthony C.; Kringelbach, Morten L.; Deco, Gustavo (American Institute of Physics (AIP), 2013)
    The neuropathology of schizophrenia remains unclear. Some insight has come from modern neuroimaging techniques, which offer an unparalleled opportunity to explore in vivo the structure and function of the brain. Using ...
  • Ton, Robert; Deco, Gustavo; Daffertshofer, Andreas (Public Library of Science (PLoS), 2014)
    The discrepancy between structural and functional connectivity in neural systems forms the challenge in understanding general brain functioning. To pinpoint a mapping between structure and function, we investigated the ...
  • Schoonenboom, Judith; Sligte, Henk; Moghnie, Ayman; Hernández Leo, Davinia; Stefanov, Krassen; Glahn, Christian; Specht, Marcus; Lemmers, Ruud (International Association of Online Engineering (IAOE), 2008)
    This paper describes an experiment to explore the effects of the TENCompetence infrastructure for supporting lifelong competence development which is now in development. This infrastructure provides structured, multi-leveled ...
  • Alvino, Serena; Asensio-Pérez, Juan I.; Dimitriadis, Yannis; Hernández Leo, Davinia (Taylor & Francis (Routledge), 2009)
    Distance and blended collaborative learning settings are usually characterized by different social structures defined in terms of groups' number, dimension, and composition; these structures are variable and can change ...

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