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Consulteu Documents de Congressos per data de publicació

Consulteu Documents de Congressos per data de publicació

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  • Investigation of ICA algorithms for feature extraction of EEG signals in discrimination of Alzheimer disease
    Solé-Casals, Jordi; Vialatte, François B.; Chen, Zhe; Cichocki, Andrej (2008)
    In this paper we present a quantitative comparisons of different independent component analysis (ICA) algorithms in order to investigate their potential use in preprocessing (such as noise reduction and feature extraction) the ...
  • A recursive approach to Multiscalar Data Interpolation of sparsely sampled sea surface measurements at different spatial resolutions
    Reig Bolaño, Ramon; García Ladona, Emili; Parisi Baradad, Vicenç; Martí i Puig, Pere (IEEE, 2008)
    Abstract- In many oceanographic studies there is a need to reconstruct a signal from a set of sparse measurements. We propose an algorithm to iteratively approximate the intermediate values between irregularly sampled ...
  • Improved Sparse Bump Modeling for Electrophysiological Data
    Vialatte, François B.; Dauwels, Justin; Solé-Casals, Jordi; Maurice, Monique; Cichocki, Andrej (Springer, 2008)
    Bump modeling is a method used to extract oscillatory bursts in electrophysiological signals, who are most likely to be representative of local synchronies. In this paper we present an improved sparse bump modeling ...
  • Reducción del vector de características de reconocimiento facial
    Travieso, Carlos M.; Solé-Casals, Jordi; Zaiats, Vladimir; Alonso, Jesús B.; Ferrer, Miguel A. (2008)
    In this present work, we are proposing a characteristics reduction system for a facial biometric identification system, using transformed domains such as discrete cosine transformed (DCT) and discrete wavelets transformed ...
  • Improving the Quality of EEG Data in Patients With Alzheimers Disease Using ICA
    Vialatte, François B.; Solé-Casals, Jordi; Maurice, Monique; Latchoumane, Charles-François V.; Hudson, Niegel; Wimalaratna, Sunil R.; Jaeseung, Jeonga; Cichocki, Andrej (Springer, 2008)
    Does Independent Component Analysis (ICA) denature EEG signals? We applied ICA to two groups of subjects (mild Alzheimer patients and control subjects). The aim of this study was to examine whether or not the ICA method ...
  • És possible avaluar el procés en l'educació física?
    Pla, Gil (Universitat de Vic, 2008)
    La present comunicació neix amb la voluntat d'ordenar i repensar les estratègies que disposa qualsevol educador que treballi des del cos per treure'n el màxim rendiment i així poder fer més eficient el costós procés ...
  • El rompecabezas de aprender a jugar a rugby
    Pla, Gil; Pasarello Clerice, Mariano (2008)
    La comunicación pretende mostrar la experiencia que hemos vivido en el proceso de construcción y consolidación de un equipo de rugby universitario formado por jugadores y jugadoras mayoritariamente inexpertas en nuestro ...
  • Automatic Recognition of Leaves by Shape Detection Pre-Processing with Ica
    Solé-Casals, Jordi; Travieso, Carlos M.; Ferrer, Miguel A.; Alonso, Jesús B.; Briceno, Juan Carlos (Springer, 2009)
    In this work we present a simulation of a recognition process with perimeter characterization of a simple plant leaves as a unique discriminating parameter. Data coding allowing for independence of leaves size and orientation ...
  • Coherency and sharpness measures by using ICA algorithms. An investigation for Alzheimer’s disease discrimination
    Solé-Casals, Jordi; Vialatte, François B.; Chen, Zhe; Cichocki, Andrej (Springer, 2009)
    In this paper, we present a comprehensive study of different Independent Component Analysis (ICA) algorithms for the calculation of coherency and sharpness of electroencephalogram (EEG) signals, in order to investigate ...
  • Improving a leaves automatic recognition process using PCA
    Solé-Casals, Jordi; Travieso, Carlos M.; Alonso, Jesús B.; Ferrer, Miguel A. (Springer, 2009)
    In this work we present a simulation of a recognition process with perimeter characterization of a simple plant leaves as a unique discriminating parameter. Data coding allowing for independence of leaves size and ...
  • Two Families of Radix-2 FFT Algorithms With Ordered Input and Output Data
    Martí i Puig, Pere (IEEE, 2009)
    Two radix-2 families of fast Fourier transform (FFT) algorithms that have the property that both inputs and outputs are addressed in natural order are derived in this letter. The algorithms obtained have the same ...
  • ¿Qué les queda a los jóvenes?
    Pla, Gil; Franc, Núria; Heras Fortuny, Gemma (2009)
    Uno de los retos actuales de la intervención psicomotriz es tener en cuenta el contexto social y cultural del momento y percibir qué lo caracteriza y de que manera va a condicionar nuestra intervención. La experiencia nos ...
  • Les aules universitàries a l'escola. Una xarxa formativa indissociable
    Pla, Gil; Franc, Núria (2009)
    La proposta de comunicació mostra una experiència formativa en el marc d'una assignatura universitària que desenvolupa un projecte educatiu en l'àmbit escolar.
  • Student experiences in a course blended learning
    Contreras, Ruth S. (Ruth Sofhía); Eguía, José Luis (2009)
    Fascination is a project for design students, developed jointly by the Technical University of Catalonia (UPC) and the University of Technology Thonburi (KMUTT), which works with two groups of students, one group of ...
  • Comunicar la ciudad desde el paisaje: hacia una teoría del landscape branding
    San Eugenio Vela, Jordi de (09-2009)
    The need to decode landscape meanings, the society- landscape interaction (intra- and inter-personal communication) and, more recently, the uses of landscape as a territorial sight linked to advertising communication, ...
  • Applications of Cumulants in Speech Processing
    Zaiats, Vladimir; Solé-Casals, Jordi; Martí i Puig, Pere; Reig Bolaño, Ramon (Springer, 2010)
    This paper analyzes applications of cumulant analysis in speech processing. The main focus is made on an integral representation for cUl1luJants using integrals involving cyclic products of kernels. These integrals serve ...
  • Market Stock Decisions Based on Morphological Filtering
    Martí i Puig, Pere; Reig Bolaño, Ramon; Bajo, Javier; Rodríguez, Sara (Springer, 2010)
    In this paper we use a nonlinear processing technique based on mathematical morphology to develop a simple day trading system that automatically decides the timing to commute the marked strategy in terms of sort/long ...
  • Mathematical Morphology Preprocessing to Mitigate AWGN Effects: Improving Pitch Tracking Performance in Hard Noise Conditions
    Martí i Puig, Pere; Solé-Casals, Jordi; Reig Bolaño, Ramon; Zaiats, Vladimir (Springer, 2010)
    Abstract. In this paper we show how a nonlinear preprocessing of speech signal -with high noise- based on morphological filters improves the performance of robust algorithms for pitch tracking (RAPT). This result happens ...
  • Coding of Biosignals Using the Discrete Wavelet Decomposition
    Reig Bolaño, Ramon; Martí i Puig, Pere; Solé-Casals, Jordi; Zaiats, Vladimir; Parisi Baradad, Vicenç (Springer, 2010)
    Abstract. Wavelet derived codification techniques are widespread used in image codifiers. The wavelet based compression methods are adequate for representing transients. In this paper we explore the use of the discrete ...
  • Score Function for Voice Activity Detection
    Solé-Casals, Jordi; Martí i Puig, Pere; Reig Bolaño, Ramon; Zaiats, Vladimir (Springer, 2010)
    In this paper we explore the use of non-linear transformations in order to improve the performance of an entropy based voice activity detector (VAD). The idea of using a non-linear transformation comes from some ...

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