Recent Submissions

  • Conditional distribution variability measures for causality detection 

    Rodríguez Fonollosa, José Adrián (Springer, 2019)
    Part of book or chapter of book
    Restricted access - publisher's policy
    In this paper we derive variability measures for the conditional probability distributions of a pair of random variables, and we study its application in the inference of causal-effect relationships. We also study the ...
  • Multi-modal deep learning for Fuji apple detection using RGB-D cameras and their radiometric capabilities 

    Gené Mola, Jordi; Vilaplana Besler, Verónica; Rosell Polo, Joan Ramon; Morros Rubió, Josep Ramon; Ruiz Hidalgo, Javier; Gregorio, Eduard (2019-07-01)
    Article
    Restricted access - publisher's policy
    Fruit detection and localization will be essential for future agronomic management of fruit crops, with applications in yield prediction, yield mapping and automated harvesting. RGB-D cameras are promising sensors for fruit ...
  • BCN20000: dermoscopic lesions in the wild 

    Combalia, Marc; Codella, Noel C. F.; Rotemberg, Veronica; Vilaplana Besler, Verónica (2019)
    External research report
    Open Access
    This article summarizes the BCN20000 dataset, composed of 19424 dermoscopic images of skin lesions captured from 2010 to 2016 in the facilities of the Hospital Clínic in Barcelona. With this dataset, we aim to study the ...
  • Electron density retrieval from truncated Radio Occultation GNSS data 

    Lyu, Haixia; Hernández Pajares, Manuel; Monte Moreno, Enrique; Cardellach Galí, Estel (2019-06-01)
    Article
    Open Access
    This paper summarizes the definition and validation of two complementary new strategies, to invert incomplete Global Navigation Satellite System Radio-Occultation (RO) ionospheric measurements, such as the ones to be ...
  • Matrix completion and extrapolation via kernel regression 

    Giménez Febrer, Pedro Juan; Pagès Zamora, Alba Maria; Giannakis, Georgios B. (2019-10-01)
    Article
    Open Access
    Matrix completion and extrapolation (MCEX) are dealt with here over reproducing kernel Hilbert spaces (RKHSs) in order to account for prior information present in the available data. Aiming at a fast and low-complexity ...
  • Spectral weighting orthogonal matching pursuit algorithm for enhanced out-of-band digital predistortion linearization 

    Gilabert Pinal, Pere Lluís; López Bueno, David; Montoro López, Gabriel (2018-01-01)
    Article
    Open Access
    This paper presents a new variant of the orthogonal matching pursuit (OMP) algorithm for reducing the computational complexity of the digital predistortion (DPD) behavioral model in the forward path. The proposed spectral ...
  • Differential 8-APSK monolithically integrated dual-EML transmitter for flexible coherent PONs 

    Velásquez Micolta, Juan Camilo; Tabares Giraldo, Jeison; Prat Gomà, Josep Joan (2019-06-01)
    Article
    Restricted access - publisher's policy
    We experimentally demonstrate a simultaneous amplitude and phase modulation of a monolithically integrated dual electro-absorption modulated laser. The proposed technique combines a 4-ary direct phase modulation with a ...
  • Conformal transformation of Dyakonov surface waves into bound states of cylindrical metamaterials 

    Kajorndejnukul, Veerachart; Artigas García, David; Torner Sabata, Lluís (American Physical Society (APS), 2019-11-05)
    Article
    Open Access
    We put forward the use of transformation optics to map surface waves that exist as one-dimensional modes supported by anisotropic structures into bound states in two-dimensional geometries. Specifically, we show the conformal ...
  • Chatbol, a chatbot for the Spanish “La Liga” 

    Segura, Carlos; Palau, Alex; Luque, Jordi; Ruiz Costa-Jussà, Marta; Banchs, Rafael E. (Springer, 2019-09-25)
    Article
    Restricted access - publisher's policy
    This work describes the development of a social chatbot for the football domain. The chatbot, named chatbol, aims at answering a wide variety of questions related to the Spanish football league “La Liga”. Chatbol is deployed ...
  • Dades, màquina i ètica 

    Ruiz Costa-Jussà, Marta (2019-02-01)
    Article
    Open Access
  • Profit-based radio access network slicing for multi-tenant 5G networks 

    Pérez Romero, Jordi; Sallent Roig, José Oriol; Ferrús Ferré, Ramón Antonio; Agustí Comes, Ramon (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference report
    Restricted access - publisher's policy
    Network slicing is a key capability of 5G networks that facilitates the provision of multi-tenancy by allocating different slices to the tenants that share a certain infrastructure according to specific Service Level ...
  • Decentralized shaping for pilot generation and detection in opportunistic communications 

    Borràs Pino, Jordi; Vázquez Grau, Gregorio (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference report
    Restricted access - publisher's policy
    The uncoordinated design of pulse shaping filters for opportunistic communications is addressed. We show that under degrees-of-freedom sensing uncertainties the waveform design problem can be cast as a minimum-norm ...

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