• Consensus paper: towards a systems-level view of cerebellar function: the interplay between cerebellum, basal ganglia, and cortex

  Caligiore, Daniele; Pezzulo, Giovanni; Baldassarre, Gianluca; Bostan, Andreea C.; Strick, Peter L.; Doya, Kenji; Helmich, Rick C.; Dirkx, Michiel; Houk, James; Jörntell, Henrik; Lago-Rodriguez, Angel; Galea, Joseph M.; Miall, R. Chris; Popa, Traian; Kishore, Asha; Verschure, Paul F. M. J.; Zucca, Riccardo; Herreros, Ivan (Springer, 2017)

  Despite increasing evidence suggesting the cerebellum works in concert with the cortex and basal ganglia, the nature of the reciprocal interactions between these three brain regions remains unclear. This consensus paper ...
• State representation learning for goal-conditioned reinforcement learning

  Steccanella, Lorenzo; Jonsson, Anders (Springer, 2022)

  This paper presents a novel state representation for reward-free Markov decision processes. The idea is to learn, in a self-supervised manner, an embedding space where distances between pairs of embedded states correspond ...
• Efficient remote photoplethysmography with temporal derivative modules and time-shift invariant loss

  Comas, Joaquim; Ruiz Ovejero, Adrià; Sukno, Federico Mateo (Institute of Electrical and Electronics Engineers (IEEE), 2022)

  We present a lightweight neural model for remote heart rate estimation focused on the efficient spatio-temporal learning of facial photoplethysmography (PPG) based on i) modelling of PPG dynamics by combinations of multiple ...
• A physical neural mass model framework for the analysis of oscillatory generators from laminar electrophysiological recordings

  Sanchez Todo, Roser; Bastos, André M.; Lopez-Sola, Edmundo; Mercadal, Borja; Santarnecchi, Emiliano; Miller, Earl K.; Deco, Gustavo; Ruffini, Giulio (Elsevier, 2023)

  Cortical function emerges from the interactions of multi-scale networks that may be studied at a high level using neural mass models (NMM) that represent the mean activity of large numbers of neurons. Here, we provide first ...
• Networks of injectable microdevices powered and digitally linked by volume conduction for neuroprosthetics: a proof-of-concept

  Becerra Fajardo, Laura; Minguillon, Jesus; Comerma-Montells, Albert; Ivorra Cano, Antoni, 1974- (Institute of Electrical and Electronics Engineers (IEEE), 2023)

  Wireless power transfer (WPT) methods such as inductive coupling and ultrasounds are used as an alternative to electrochemical batteries to energize active implantable medical devices. However, existing WPT methods require ...
• Energy dissipation in viscoelastic Bessel media

  Colombaro, Ivano; Giusti, Andrea; Mentrelli, Andrea (Springer, 2023)

  We investigate the specific attenuation factor for the Bessel models of viscoelasticity. We find that the quality factor for this class can be expressed in terms of Kelvin functions and that its asymptotic behaviours confirm ...
• Effectiveness of a mixed reality system in terms of social interaction behaviors in children with and without autism spectrum condition

  Galí Pérez, Olga; Sayis, Batuhan; Parés, Narcís, 1966- (ACM Association for Computer Machinery, 2021)

  The present study analyses the effectiveness of a mixed reality (MR) face-to-face full-body system to foster social interaction behaviors (SIBs) in a child with ASC and a play partner, a child without ASC (non-ASC). An MR ...
• Chimera states in multiplex networks: chameleon-like across-layer synchronization

  Andrzejak, Ralph Gregor; Espinoso Palacín, Anaïs (American Institute of Physics (AIP), 2023)

  Different across-layer synchronization types of chimera states in multilayer networks have been discovered recently. We investigate possible relations between them, for example, if the onset of some synchronization type ...
• Cell-free UAV networks: asymptotic analysis and deployment optimization

  Diaz-Vilor, Carles; Lozano Solsona, Angel; Jafarkhani, Hamid (Institute of Electrical and Electronics Engineers (IEEE), 2023)

  Recently, cell-free (CF) architectures, in which every user can potentially communicate with every base station, have received a lot of attention. This paper considers the uplink of fully and partially centralized CF ...
• Dielectric properties of colon polyps, cancer, and normal mucosa: Ex vivo measurements from 0.5 to 20 GHz

  Guardiola, Marta; Buitrago, Santiago; Fernández-Esparrach, Gloria; O’Callaghan, Joan M.; Romeu, Jordi; Cuatrecasas, Miriam; Córdova, Henry; González Ballester, Miguel Ángel, 1973-; Camara, Oscar (American Association of Physicists in Medicine (AAPM), 2018)

  Purpose: Colorectal cancer is highly preventable by detecting and removing polyps, which are the precursors. Currently, the most accurate test is colonoscopy, but still misses 22% of polyps due to visualization limitations. ...
• Heart rate reduction improves biventricular function and interactions in experimental pulmonary hypertension

  Gómez Balduz, Olga; Okumura, Kenichi; Honjo, Osami; Sun, Mei; Ishii, Ryo; Bijnens, Bart; Friedberg, Mark K. (American Psychological Association (APA), 2018)

  The objective of the present study was to investigate mechanisms of heart rate (HR) reduction on biventricular function and interactions in experimental pulmonary arterial hypertension (PAH). We compared cardiac cycle ...
• An exterior-algebraic derivation of the symmetric stress–energy–momentum tensor in flat space–time

  Martinez, Alfonso; Font Segura, Josep; Colombaro, Ivano (Springer, 2021)

  This paper characterizes the symmetric rank-2 stress–energy–momentum tensor associated with fields whose Lagrangian densities are expressed as the dot product of two multivector fields, e.g., scalar or gauge fields, in ...
• Morse description and morphological encoding of continuous data

  Caselles, Vicente; Sapiro, Guillermo; Solé, Andrés; Ballester, Coloma (SIAM (Society for Industrial and Applied Mathematics), 2006)

  A geometric representation for images is studied in this work. This is based on two complementary geometric structures for the topographic representation of an image. The first one computes a description of the Morse ...
• Hierarchical range sectoring and bidirectional link quality estimation for on-demand collections in WSNs

  Valls, Victor; Sánchez, José Luis; Cano Bastidas, Cristina; Bellalta, Boris; Oliver Riera, Miquel (Elsevier, 2013)

  The paper presents two mechanisms for designing an on-demand, reliable and efficient collection protocol for Wireless Sensor Networks. The former is the Bidirectional Link Quality Estimation, which allows nodes to easily ...
• FastLAS: scalable inductive logic programming incorporating domain-specific optimisation criteria

  Law, Mark; Russo, Alessandra; Bertino, Elisa; Broda, Krysia; Lobo, Jorge (Association for the Advancement of Artificial Intelligence (AAAI), 2020)

  Inductive Logic Programming (ILP) systems aim to find a set of logical rules, called a hypothesis, that explain a set of examples. In cases where many such hypotheses exist, ILP systems often bias towards shorter solutions, ...
• Exemplar-based image inpainting using an affine invariant similarity measure

  Fedorov, Vadim; Arias Martínez, Pablo; Facciolo Furlan, Gabriele; Ballester, Coloma (Springer, 2016)

  Patch-based approaches are used in state-of-the-art methods for image inpainting. This paper presents a new method for exemplar-based image inpainting using transformed patches. The transformation is determined for each ...
• The Use of interval ratios in consonance perception by rats (Rattus norvegicus) and humans (Homo sapiens)

  Crespo Bojorque, Paola, 1985-; Toro Soto, Juan Manuel, 1976- (American Psychological Association (APA), 2016)

  Traditionally, physical features in musical chords have been proposed to be at the root of consonance perception. Alternatively, recent studies suggest that different types of experience modulate some perceptual foundations ...
• A variational model for P+XS image fusion

  Ballester, Coloma; Caselles, Vicente; Igual, Laura; Verdera, Joan; Rougé, Bernard (Springer, 2006)

  We propose an algorithm to increase the resolution of multispectral satellite images knowing the panchromatic image at high resolution and the spectral channels at lower resolution. Our algorithm is based on the assumption ...
• Level lines selection with variational models for segmentation and encoding

  Ballester, Coloma; Caselles, Vicente; Igual, Laura; Garrido, Luís (Springer, 2007)

  This paper discusses the interest of the Tree of Shapes of an image as a region oriented image representation. The Tree of Shapes offers a compact and structured representation of the family of level lines of an image. ...
• Effects of encouraging the use of gestures on speech

  Cravotta, Alice; Busà, Maria Grazia; Prieto Vives, Pilar, 1965- (American Speech-Language-Hearing Association, 2019)

  Purpose: Previous studies have investigated the effects of the inability to produce hand gestures on speakers' prosodic features of speech; however, the potential effects of encouraging speakers to gesture have received ...

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