Benvinguts al Repositori Digital de la UPF

Departament de Tecnologies de la Informació i les Comunicacions

Departament de Tecnologies de la Informació i les Comunicacions

 

Documents de recerca, en accés obert, com ara articles de revista, llibres, comunicacions, ponències o posters a jornades i congressos, etc., del Departament de Tecnologies de la Informació i de les Comunicacions de la UPF.

Col·leccions d'aquesta comunitat

Enviaments recents

  • Prieto, Luis P.; Martínez-Maldonado, Roberto; Spikol, Daniel; Hernández Leo, Davinia; Rodríguez-Triana, María Jesús; Ochoa, Xavier (CEUR Workshop Proceedings, 2017)
    Learning is a complex, mostly invisible process that happens across spaces, occurring in the physical world but also increasingly in virtual worlds or web-based spaces. In order to explore what happens in such blended ...
  • Mercadal Cavaller, Borja; Arena, Christopher B.; Davalos, Rafael V.; Ivorra Cano, Antoni, 1974- (Institute of Physics (IOP), 2017)
    Electroporation based treatments consist in applying one or multiple high voltage pulses to the tissues to be treated. As an undesired side effect, these pulses cause electrical stimulation of excitable tissues such as ...
  • Rullo, Antonino; Serra, Edoardo; Bertino, Elisa; Lobo, Jorge (Springer, 2017)
    We present a method for computing the best provisioning of security resources for Internet of Things (IoT) scenarios characterized by a high degree of mobility. The security infrastructure is specifed by a security ...
  • Gialampoukidis, Ilias; Vrochidis, Stefanos; Kompatsiaris, Ioannis; Antoniou, Ioannis (2017)
    Topic detection is usually considered as a decision process implemented in some relevant context, for example clustering. In this case, clusters correspond to topics that should be identifed. Density-based clustering, ...
  • Ten-Ventura, Carla; Carlini, Roberto; Dasioupoulou, Stamatia; LLorach Tó, Gerard; Wanner, Leo (Springer, 2017)
    We present work in progress on (verbal, facial, and gestural) modality selection in an embodied multilingual and multicultural conversation agent. In contrast to most of the recent proposals, which consider non-verbal ...
  • Gialampoukidis, Ilias; Moumtzidou, Anastasia; Liparas, Dimitris; Tsikrika, Theodora; Vrochidis, Stefanos; Kompatsiaris, Ioannis (Springer, 2017)
    Heterogeneous sources of information, such as images, videos, text and metadata are often used to describe di erent or complementary views of the same multimedia object, especially in the online news domain and in ...
  • Zheng, Haitao; Lozano Solsona, Angel; Haleem, Mohamed (Hindawi, 2004)
    We propose a new automatic repeat request (ARQ) scheme for MIMO systems with multiple transmit and receive antennas. The substreams emitted from various transmit antennas encounter distinct propagation channels and thus ...
  • Burga Díaz, Alicia; Cajal, Sergio; Codina-Filbà, Joan; Wanner, Leo (LREC, 2016)
    Despite the popularity of coreference resolution as a research topic, the overwhelming majority of the work in this area focused so far on single antecedence coreference only. Multiple antecedent coreference (MAC) has been ...
  • Soler Company, Juan; Wanner, Leo (LREC, 2016)
    In most of the research studies on Author Profiling, large quantities of correctly labeled data are used to train the models. However, this does not reflect the reality in forensic scenarios: in practical linguistic forensic ...
  • Giménez Mínguez, Paula; Bijnens, Bart; Bernardino Perez, Gabriel; Lluch Alvarez, Èric; Soveral, Iris; Gómez, Olga; García Cañadilla, Patricia, 1985- (Springer, 2017)
    Introduction: Aortic coarctation is one of the most difficult cardiac defects to diagnose before birth, and it accounts for 8% of congenital heart diseases. Antenatal diagnosis is crucial for early treatment of the neonate ...
  • Wang, Xingce; Liu, Yue; Wu, Zhongke; Mou, Xiao; Zhou, Mingquan; González Ballester, Miguel Ángel, 1973-; Zhang, Chong (2017)
    Identifcation of anatomical vessel branches is a prerequisite task for diagnosis, treatment and inter-subject comparison. We propose a novel graph labeling approach to anatomically label vascular structures of interest. ...
  • Luque, Jordi; Morros, R.; Garde, I.; Anguita, Jan; Farrús, Mireia; Macho, D.; Marqués, F.; Martínez, C.; Vilaplana, V.; Hernando, Javier (Springer, 2007)
    In this paper, we address the modality integration issue on the example of a smart room environment aiming at enabling person identification by combining speech and 2D face images. First we introduce the monomodal audio ...
  • Villarejo Muñoz, Luis; Farrús, Mireia; Ortiz, Sergio; Ramírez, Gemma (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    In this paper, we describe the adaptation process of Apertium, a free/open-source rule-based machine translation platform which is operating in a number of different real-life contexts, to the linguistic needs of the ...
  • Farrús, Mireia; Hernando, Javier (Institution of Engineering and Technology (IET), 2009)
    Jitter and shimmer are measures of the fundamental frequency and amplitude cycle-to-cycle variations, respectively. Both features have been largely used for the description of pathological voices, and since they characterise ...
  • Farrús, Mireia (Equinox Publishing, 2009)
    Automatic speaker recognition is the use of a machine to identify an individual from a spoken sentence. Recently, this technology has been increasingly used in applications such as access control, transaction authentication, ...
  • Farrús, Mireia; Wagner, Michael; Erro, Daniel; Hernando, Javier (Equinox Publishing, 2010)
    Voices can be deliberately disguised by means of human imitation or voice conversion. The question arises as to what extent they can be modified by using either of both methods. In the current paper, a set of speaker ...
  • Farrús, Mireia; Costa-jussà, Marta R.; Mariño Acebal, José B.; Poch, Marc; Hernández, Adolfo; Henríquez, Carlos; Fonollosa, José A Rodriguez (Springer, 2011)
    This work aims to improve an N-gram-based statistical machine translation system between the Catalan and Spanish languages, trained with an aligned Spanish-Catalan parallel corpus consisting of 1.7 million sentences taken ...
  • Ruiz, Adrià; Martinez, Oriol; Binefa i Valls, Xavier; Sukno, Federico M. (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    An essential issue when training and validating computer vision systems for affect analysis is how to obtain reliable ground-truth labels from a pool of subjective annotations. In this paper, we address this problem ...
  • Fernandez-Lopez, Adriana; Martinez, Oriol; Sukno, Federico M. (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Speech is the most used communication method between humans and it involves the perception of auditory and visual channels. Automatic speech recognition focuses on interpreting the audio signals, although the video can ...
  • Mille, Simon; Carlini, Roberto; Burga Díaz, Alicia; Wanner, Leo (ACL (Association for Computational Linguistics), 2017)
    We present the contribution of Universitat Pompeu Fabra’s NLP group to the Sem-Eval Task 9.2 (AMR-to-English Generation). The proposed generation pipeline comprises: (i) a series of rule-based graphtransducers for the ...

Mostra'n més