Benvinguts al Repositori Digital de la UPF

Articles (Departament de Tecnologies de la Informació i les Comunicacions)

Articles (Departament de Tecnologies de la Informació i les Comunicacions)

 

Articles de recerca, en accés obert, del Departament de Tecnologies de la Informació i de les Comunicacions de la UPF.

Enviaments recents

  • Buehlmann, Andres; Deco, Gustavo (Public Library of Science (PLoS), 2010)
    In recent experimental work it has been shown that neuronal interactions are modulated by neuronal synchronization and that this modulation depends on phase shifts in neuronal oscillations. This result suggests that ...
  • Hansen, Enrique C.A.; Battaglia, Demian; Spiegler, Andreas; Deco, Gustavo; Jirsa, Viktor K. (Elsevier, 2015)
    Functional connectivity (FC) sheds light on the interactions between different brain regions. Besides basic research, it is clinically relevant for applications in Alzheimer's disease, schizophrenia, presurgical planning, ...
  • Sánchez Martínez, Sergio; Duchateau, Nicolas Guillem; Erdei, Tamas; Fraser, Alan G.; Bijnens, Bart; Piella Fenoy, Gemma (Elsevier, 2017)
    We propose an independent objective method to characterize different patterns of functional responses to stress in the heart failure with preserved ejection fraction (HFPEF) syndrome by combining multiple temporally-aligned ...
  • Zimmer, Veronika Anne; González Ballester, Miguel Ángel, 1973-; Piella Fenoy, Gemma (Elsevier, 2019)
    The fusion and combination of images from multiple modalities is important in many applications. Typically, this process consists of the alignment of the images and the combination of the complementary information. In ...
  • Benkarim, Oualid M.; Hahner, Nadine; Piella Fenoy, Gemma; Gratacós Solsona, Eduard; González Ballester, Miguel Ángel, 1973-; Eixarch, Elisenda; Sanromà, Gerard (Elsevier, 2018)
    Neuroimaging of brain diseases plays a crucial role in understanding brain abnormalities and early diagnosis. Of great importance is the study of brain abnormalities in utero and the assessment of deviations in case of ...
  • Rosales, Andrea; Sayago, Sergio; Blat, Josep (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Three playful wearable accessories incorporate design principles that promote individuality, natural interaction, ubiquity, and intimacy to encourage spontaneous open-ended social interaction in school-age children. The ...
  • Deco, Gustavo; Cruzat, Josephine; Kringelbach, Morten L. (Nature Research, 2019)
    A key unresolved problem in neuroscience is to determine the relevant timescale for understanding spatiotemporal dynamics across the whole brain. While resting state fMRI reveals networks at an ultraslow timescale (below ...
  • Moreno, Verónica; Hernández Leo, Davinia; Oliver, Miquel; Atienza, Encarna (CIDUI Congrés Internacional de Docència Universitària i Innovació, 2018)
    OSWALDO nace con el objetivo de promover, facilitar y acompañar en la práctica reflexiva de la mejora docente a través de un sistema de observación entre iguales. El proyecto dispone de recursos e instrumentos de apoyo ...
  • Moreno Oliver, Verónica; Hernández Leo, Davinia; Khosronejad, Maryam (CIDUI Congrés Internacional de Docència Universitària i Innovació, 2018)
    Este trabajo presenta los resultados de un estudio cualitativo comparado realizado con alumnado de Ingeniería de la Universitat Pompeu Fabra (UPF) Barcelona (primer curso y graduados) que tenía por objetivo conocer el ...
  • Downey, Rodney G. (Elsevier, 2003)
    The Graph k-Cut problem is that of finding a set of edges of minimum total weight, in an edge-weighted graph, such that their removal from the graph results in a graph having at least k connected components. An algorithm ...
  • Vidal, Vincent; Geffner, Héctor (Elsevier, 2006)
    A key feature of modern optimal planners such as graphplan and blackbox is their ability to prune large parts of the search space. Previous Partial Order Causal Link (POCL) planners provide an alternative branching scheme ...
  • Kappen, Hilbert J.; Gómez, Vicenç (Springer, 2014)
    We analyze the variational method for sparse regression using ℓ 0 regularization. The variational approximation results in a model that is similar to Breiman’s Garrote model. We refer to this method as the Variational ...
  • Baus, Cristina; McAleer, Phil; Marcoux, Katherine; Belin, Pascal; Costa, Albert, 1970- (Nature Research, 2019)
    We form very rapid personality impressions about speakers on hearing a single word. This implies that the acoustical properties of the voice (e.g., pitch) are very powerful cues when forming social impressions. Here, we ...
  • Bonet, Blai; Geffner, Héctor (Elsevier, 2008)
    The automatic derivation of heuristic functions for guiding the search for plans is a fundamental technique in planning. The type of heuristics that have been considered so far, however, deal only with simple planning ...
  • Atserias, Albert; Dalmau, Víctor (Elsevier, 2008)
    We provide a characterization of the resolution width introduced in the context of propositional proof complexity in terms of the existential pebble game introduced in the context of finite model theory. The characterization ...
  • Neu, Gergely; Szepesvári, Csaba (Springer, 2009)
    One major idea in structured prediction is to assume that the predictor computes its output by finding the maximum of a score function. The training of such a predictor can then be cast as the problem of finding weights ...
  • Kappen, Hilbert J.; Gómez, Vicenç; Opper, Manfred (Springer, 2012)
    We reformulate a class of non-linear stochastic optimal control problems introduced by Todorov (in Advances in Neural Information Processing Systems, vol. 19, pp. 1369-1376, 2007) as a Kullback-Leibler (KL) minimization ...
  • Bodirsky, Manuel; Dalmau, Víctor (Elsevier, 2013)
    On finite structures, there is a well-known connection between the expressive power of Datalog, finite variable logics, the existential pebble game, and bounded hypertree duality. We study this connection for infinite ...
  • Wang, Peng; Kong, Ru; Kong, Xiaolu; Liégeois, Raphaël; Orban, Csaba; Deco, Gustavo; Yeo, Thomas BT (American Association for the Advancement of Science (AAAS), 2019)
    We considered a large-scale dynamical circuit model of human cerebral cortex with region-specific microscale properties. The model was inverted using a stochastic optimization approach, yielding markedly better fit to new, ...
  • Dalmau, Víctor; Krokhin, Andrei; Larose, Benoit (Elsevier, 2008)
    The poset retraction problem for a poset P is whether a given poset Q containing P as a subposet admits a retraction onto P, that is, whether there is a homomorphism from Q onto P which fixes every element of P. We study ...

Mostra'n més