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Listar Departament de Tecnologies de la Informació i les Comunicacions por título

Listar Departament de Tecnologies de la Informació i les Comunicacions por título

Ordenar por:Orden:Resultados:

  • Barceló Vicens, Jaume; Inaltekin, Hazer; Bellalta, Boris (Institute of Electrical and Electronics Engineers (IEEE), 2011)
    Contention control is an important means to mitigate adverse affects of multiple access interference on transmitted data packets in wireless communication networks. Most practical contention control mechanisms, e.g., IEEE ...
  • Rawat, Abhimanyu; Daza, Vanesa; Signorini, Matteo (MDPI, 2022)
    An increased pattern of hidden Internet of Things (IoT) devices has been observed. Due to the increased number of security attacks, a large number of IoT devices are disappearing from the public internet. Operating blockchain ...
  • Sayago Barrantes, Sergio; Forbes, Paula; Blat, Josep (Taylor & Francis (Routledge), 2013)
    A growing ageing population and an increasing reliance on Information and Communication Technologies (ICT) to conduct activities associated with daily living means that addressing how older people learn to use ICT is timely ...
  • Ferreira, Susan M.; Sayago Barrantes, Sergio; Blat, Josep (Taylor & Francis, 2017)
    While most of today’s children, young people, and adults are both consumers and producers of digital content, very little is known about older people as digital content creators. Drawing on a three-year ethnographic study, ...
  • Sayago Barrantes, Sergio; Forbes, Paula; Blat, Josep (BCS Learning and Development Ltd., 2012)
    This paper reports on a classical, face-to-face ethnographical study of YouTube use and social sharing practices by 32 older people (65-90). The study was conducted in a computer clubhouse in Scotland over an 18-month ...
  • Righi, Valeria; Sayago Barrantes, Sergio; Blat, Josep (Monash University, 2012)
    Social Networks Sites (SNS) are attracting a lot of public and academic interest. However, despite an increasing uptake of Information and Communication Technologies amongst the older population, very little is known about ...
  • Fadhil, Ahmed; AbuRa'ed, Ahmed Ghassan Tawfiq (ACL (Association for Computational Linguistics), 2019)
    We introduce OlloBot, an Arabic conver-sational agent that assists physicians andsupports patients with the care process.It doesn’t replace the physicians, insteadprovides health tracking and support andassists ...
  • Sadek, Rida; Constantinopoulos, Constantinos; Meinhardt Llopis, Enric; Ballester, Coloma; Caselles, Vicente (SIAM (Society for Industrial and Applied Mathematics), 2012)
    Using a classical result on algebraic invariants of the unimodular group, we present in this paper some basic geometric affine invariant quantities, and we use them to construct some distinctive descriptors for object ...
  • Raad, Lara; Oliver Parera, Maria; Ballester, Coloma; Haro Ortega, Gloria; Meinhardt Llopis, Enric (IPOL, 2020)
    This work describes two anisotropic optical flow inpainting algorithms. The first one recovers the missing flow values using the Absolutely Minimizing Lipschitz Extension partial differential equation (also called infinity ...
  • 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 ...
  • Daza, Vanesa; Morillo, Paz; Ràfols, Carla (Elsevier, 2007)
    Identity-Based cryptography has been proposed in mobile ad-hoc networks (MANETs) to provide security. However, the figure of the Private Key Generator (PKG) is not adequate in the MANET setting, since it may not be reachable ...
  • 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 ...
  • 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 ...
  • Pizzo, Andrea; Lozano Solsona, Angel (Institute of Electrical and Electronics Engineers (IEEE), 2022)
    An alternative derivation is provided for the degrees of freedom (DOF) formula on line-of-sight (LOS) channels via Landau’s eigenvalue theorem for bandlimited signals. Compared to other approaches, Landau’s theorem provides ...
  • Costa, Albert, 1970-; Vives, Marc-Lluís, 1991-; 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 ...
  • Ferraro, Andrés; Lemström, Kjell (ACM Association for Computer Machinery, 2018)
    The importance of repetitions in music is well-known. In this paper, we study music repetitions in the context of effective and efficient automatic genre classification in large-scale music-databases. We aim at enhancing ...
  • Cárcamo Ulloa, Luis; Cárdenas Neira, Camila; Scheihing-García, Eliana; Sáez-Trumper, Diego; Vernier, Matthieu; Blaña-Romero, Carlos (MDPI, 2023)
    Citizens get informed, on a daily basis, from social networks in general and from the media in particular. Accordingly, the media are increasingly expressing their concern about phenomena related to disinformation. This ...
  • Lobo, Jorge; Bertino, Elisa; Russo, Alessandra (ACM Association for Computer Machinery, 2020)
    There has been over the past decade a rapid change towards computational environments that are comprised of large and diverse sets of devices, many of them mobile, which can connect in flexible and context-dependent ways. ...

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