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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

  • Fuente Valentín, Luis de la; Pérez-Sanagustín, Mar; Hernández-Leo, Davinia; Pardo Sánchez, Abelardo; Blat, Josep; Delgado Kloos, Carlos (Elsevier, 2014)
    Computer Supported Collaborative Blended Learning (CSCBL) scripts are innovative practices that benefit from interactive devices to combine and coordinate activities occurring in different spatial locations. However, the ...
  • Amarasinghe, Ishari; Hernández Leo, Davinia; Manathunga, Kalpani; Jonsson, Anders, 1973- (Graz University of Technology. Institut für Informationssysteme und Computer Medien (IICM), 2018)
    Collaborative learning spaces deployed in Massive Open Online Courses (MOOCs) provide productive social learning opportunities. However, sustaining collaboration in these spaces is challenging. This paper provides a ...
  • Albó, Laia; Hernández Leo, Davinia; Moreno Oliver, Verónica (Taylor & Francis, 2018)
    This paper explores how the use of smartphones vs. laptops influences students’ engagement, behaviour and experience watching academic videos in a collaborative classroom. Experiments were run in authentic teaching sessions ...
  • Toro Soto, Juan Manuel, 1976- (Konrad Lorenz Fundación Universitaria, 2011)
    Uno de los mayores problemas en el estudio del lenguaje es la comprensión de sus fundamentos biológicos. Una forma de abordar este problema que ha resultado efectiva es la de estudiar hasta qué punto compartimos con otros ...
  • Branzi, Francesca Martina, 1984-; Calabria, Marco; Boscarino, Maria Lucrezia; Costa, Albert (Elsevier, 2016)
    We explored the overlap between bilingual language control (bLC) and domain-general executive control (EC) by focusing on inhibitory control processes. We tested 62 bilinguals in linguistic and non-linguistic switching ...
  • Neumann, S.; Klebl, M.; Griffiths Jenkins, David; Hernández Leo, Davinia; de la Fuente Valentín, L.; Hummel, H.; Brouns, F.; Derntl, Michael; Oberhuemer, P. (International Association of Online Engineering, 2010)
    Europe has seen a number of learning design initiatives in the past years. Among them are the Open University UK Learning Design Initiative, JISC’s Design for Learning Programme, as well as the Open University of the ...
  • Sugrue, Alan; Maor, Elad; Ivorra Cano, Antoni, 1974-; Vaidya, Vaibhav; Witt, Chance; Kapa, Suraj; Asirvatham, Samuel (Taylor & Francis, 2018)
    Cardiac ablation is an established treatment modality for the management of patients with cardiac arrhythmias. Current approaches to cardiac ablation employ thermal based energy to achieve lesions (damage) within the ...
  • Mochol, Gabriela; Hermoso Mendizabal, Ainhoa; Sakata, Shuzo; Harris, Kenneth D.; De la Rocha, Jaime (National Academy of Sciences, 2015)
    The spiking activity of cortical neurons is highly variable. This variability is generally correlated among nearby neurons, an effect commonly interpreted to reflect the coactivation of neurons due to anatomically shared ...
  • Andreu, Fuensanta; Caselles, Vicente; Mazón, José (European Mathematical Society (EMS), 2002)
    We prove existence and uniqueness of solutions for the Dirichlet problem for quasilinear parabolic equations in divergent form for which the energy functional has linear growth. A typical example of energy functional we ...
  • Bellettini, Giovanni; Caselles, Vicente; Novaga, Matteo (Elsevier, 2002)
    In this paper, we study the minimizing total variation flow ut=div(Du/∣Du∣) in N for initial data u0 in Lloc1(N), proving an existence and uniqueness result. Then we characterize all bounded sets Ω of finite perimeter in ...
  • Caselles, Vicente; Miranda, Michele; Novaga, Matteo (Elsevier, 2010)
    The aim of this paper is to study the isoperimetric problem with fixed volume inside convex sets and other related geometric variational problems in the Gauss space, in both the finite and infinite dimensional case. We ...
  • Alter, François; Caselles, Vicente (Springer, 2009)
    We prove that if C C RN is an open bounded convex set, then there is only one Cheeger set inside C and it is convex. A Cheeger set of C is a set which minimizes the ratio perimeter over volume among all subsets of C.
  • Caselles, Vicente; Chambolle, Antonin; Novaga, Matteo (European Mathematical Society (EMS), 2010)
    We show that generically the subsets of RN with finite volume RN have a unique Cheeger set, in the sense that there always exists a nearby set which has a unique Cheeger set. We also prove that Cheeger sets are C1,1, when ...
  • Bellettinia, Giovanni; Caselles, Vicente; Chambolle, Antonin; Novaga, Matteo (Elsevier, 2009)
    We prove the existence of a volume preserving crystalline mean curvature flat flow starting from a compact convex set and its convergence, modulo a time-dependent translation, to a Wulff shape with the corresponding volume. ...
  • Ballester, Coloma; Caselles, Vicente; Monasse, Pascal (EDP Sciences, 2003)
    In [CITE], Kronrod proves that the connected components of isolevel sets of a continuous function can be endowed with a tree structure. Obviously, the connected components of upper level sets are an inclusion tree, and the ...
  • Carrillo, José; Caselles, Vicente; Moll, Salvador (2013)
    We study the relativistic heat equation in one space dimension. We prove a local regularity result when the initial datum is locally Lipschitz in its support. We propose a numerical scheme that captures the known features ...
  • Andreu, Fuensanta; Caselles, Vicente; Díaz, Jesus Ildefonso; Mazón, Jose (Elsevier, 2002)
    We prove the existence of a finite extinction time for the solutions of the Dirichlet problem for the total variation flow. For the Neumann problem, we prove that the solutions reach the average of its initial datum in ...
  • Andreu, Fuensanta; Ballester, Coloma; Caselles, Vicent; Mazón, Jose (Elsevier, 2001)
    We introduce a new concept of solution for the Dirichlet problem for the total variational flow named entropy solution. Using Kruzhkov's method of doubling variables both in space and in time we prove uniqueness and a ...
  • Fernandez-Lopez, Adriana; Sukno, Federico Mateo (Elsevier, 2018)
    In the last few years, there has been an increasing interest in developing systems for Automatic Lip-Reading (ALR). Similarly to other computer vision applications, methods based on Deep Learning (DL) have become very ...
  • Stajner, Sanja; Drndarevic, Biljana; Saggion, Horacio (2013)
    This study addresses the automatic simplification of texts in Spanish in order to make them more accessible to people with cognitive disabilities. A corpus analysis of original and manually simplified news articles was ...

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