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  • Cramer, Ronald; Daza, Vanesa; Gracia, Ignacio; Jiménez Urroz, Jorge; Leander, Gregor; Martí, Jaume, 1943-; Padró, Carles (Institute of Electrical and Electronics Engineers (IEEE), 2008)
    Error-correcting codes and matroids have been widely used in the study of ordinary secret sharing schemes. In this paper, the connections between codes, matroids, and a special class of secret sharing schemes, namely, ...
  • Batard, Thomas; Bertalmío, Marcelo (SIAM (Society for Industrial and Applied Mathematics), 2014)
    We present a generalization of the Euclidean and Riemannian gradient operators to a vector bundle, a geometric structure generalizing the concept of manifold. One of the key ideas is to replace the standard differentiation ...
  • Biglieri, Ezio; Hong, Yi; Viterbo, Emanuele (Institute of Electrical and Electronics Engineers (IEEE), 2009)
    We focus on full-rate, fast-decodable space–time block codes (STBCs) for 2 x 2 and 4 x 2 multiple-input multiple-output (MIMO) transmission. We first derive conditions and design criteria for reduced-complexity maximum-likelihood ...
  • Sezginer, Serdar; Sari, Hikmet; Biglieri, Ezio (Institute of Electrical and Electronics Engineers (IEEE), 2009)
    The 2×2 MIMO profiles included in Mobile WiMAX specifications are Alamouti’s space-time code (STC) fortransmit diversity and spatial multiplexing (SM). The former has/nfull diversity and the latter has full rate, but neither ...
  • Albà Soler, Mar; Castresana Ruiz-Carrillo, José Ignacio (BioMed Central, 2007)
    Background: It has been shown in a variety of organisms, including mammals, that genes that appeared recently in evolution, for example orphan genes, evolve faster than older genes. Low functional constraints at the time ...
  • Andriyanova, Iryna; Biglieri, Ezio; Boutros, Joseph Jean (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    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 ...
  • Costa, Albert, 1970-; Vives, Marc-Lluís; Corey, Joanna Darrow, 1986- (SAGE Publications, 2017)
    Recent research has revealed that people’s preferences, choices, and judgments are affected by whether information is presented in a foreign or a native language. Here, we review this evidence, focusing on various ...
  • Guerrero Solé, Frederic (Obercom, 2016)
    Although in the last three decades many works have been devoted to the study of Davison’s (1983) Third-Person Effect (TPE) for a great variety of media contents, as far as we know none of them has explored the presumed ...
  • Joppa, Lucas N.; Montoya, José M.; Solé Vicente, Ricard, 1962-; Sanderson, Jim; Pimm, Stuart L. (Evolutionary Ecology, 2010)
    Questions: Are interaction patterns in species interaction networks different from what one expects by chance alone? In particular, are these networks nested – a pattern where resources taken by more specialized consumers ...
  • Baudoin, Fabrice; Nualart, Eulàlia; Ouyang, Cheng; Tindel, Samy (Institute of Mathematical Statistics (IMS), 2016)
    This article investigates several properties related to densities of solutions (Xt)t∈[0,1] to differential equations driven by a fractional Brownian motion with Hurst parameter H>1/4. We first determine conditions for ...
  • Solé Vicente, Ricard, 1962-; Amor, Daniel R.; Valverde, Sergi (Public Library of Science (PLoS), 2016)
    It has been suggested that innovations occur mainly by combination: the more inventions accumulate, the higher the probability that new inventions are obtained from previous designs. Additionally, it has been conjectured ...
  • Branzi, Francesca Martina; Calabria, Marco; Gade, Miriam; Fuentes, Luis J.; Costa, Albert, 1970- (Cambridge University Press, 2018)
    In one task-switching experiment, we compared bilinguals and monolinguals to explore the reliability of the bilingualism effect on the n-2 repetition cost. In a second taskswitching experiment, we tested another group of ...
  • Daza, Vanesa; Herranz, Javier; Sáez, Germán (Institute of Electrical and Electronics Engineers (IEEE), 2008)
    In a distributed key distribution scheme, a set of servers helps a set of users in a group to securely obtain a common key. Security means that an adversary who corrupts some servers and some users has no information about ...
  • Sayago Barrantes, Sergio; Rosales, Andrea; Righi, Valeria; Ferreira, Susan M.; Coleman, Graham Keith (SAGE Publications, 2016)
    While older people tend to be regarded as actual, or potential, players of digital games within literature on Game Studies, Human-Computer Interaction and Gerontechnologu, they are also often considered non-avid users of ...
  • Farrús, Mireia; Garde, Ainara; Ejarque, Pascual; Luque, Jordi; Hernando, Javier (International Speech Communication Association (ISCA), 2006)
    Comunicació presentada a: 9th International Conference on Spoken Language Processing; 17-21 de setembre de 2006 a Pittsburgh, Estats Units d'Amèrica
  • Hinzen, Wolfram (De Gruyter, 2016)
    All forms of nominal reference, whether quantificational, definite, rigid, deictic, or personal, require that the nominals in question appear in relevant grammatical configurations. Reference is in this sense a grammatical ...
  • Grasas León, Alex; Ramalhinho-Lourenço, Helena; Pessoa, Luciana S; Resende, Mauricio GC; Caballé, Imma; Barba, Nuria (BioMed Central, 2014)
    Background: Blood samples are usually collected daily from different collection points, such hospitals and health centers, and transported to a core laboratory for testing. This paper presents a project to improve the ...
  • Marín López, Manuel Alejandro, 1987-; Planas Iglesias, Joan, 1980-; Aguirre Plans, Joaquim; Bonet Martínez, Jaume, 1982-; García-García, Javier, 1982-; Fernández Fuentes, Narcís; Oliva Miguel, Baldomero (Oxford University Press, 2018)
    MOTIVATION: The characterization of the protein-protein association mechanisms is crucial to understanding how biological processes occur. It has been previously shown that the early formation of non-specific encounters ...