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Consulteu Documents de Congressos per autor "Solé-Casals, Jordi"

Consulteu Documents de Congressos per autor "Solé-Casals, Jordi"

Ordena per: Ordre: Resultats:

  • Integrative analysis of the Regulatory Region of the FGFR3 Oncogene
    Bau i Macià, Josep; Cullell i Dalmau, Marta; Solé-Casals, Jordi (Springer, 2011)
    The study of transcriptional regulation often needs the integration of diverse yet independent data. In the present work, sequence conservation, predic-tion of transcription factor binding sites (TFBS) and gene expression ...
  • 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 ...
  • 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 ...
  • Nonlinear prediction based on score function
    Solé-Casals, Jordi; Monte-Moreno, Enric (2002)
    The linear prediction coding of speech is based in the assumption that the generation model is autoregresive. In this paper we propose a structure to cope with the nonlinear effects presents in the generation of the ...
  • Nonlinear prediction based on score function
    Saldamando, Luis de; Solé-Casals, Jordi; Monte-Moreno, Enric (2015)
    The linear prediction coding of speech is based in the assumption that the generation model is autoregresive. In this paper we propose a structure to cope with the nonlinear effects presents in the generation of the ...
  • Parameterization of written signatures based on EFD
    Martí i Puig, Pere; Danés Garolera, Jaume; Solé-Casals, Jordi (Springer, 2013)
    In this work we propose a method to quantify written signatures from digitalized images based on the use of Elliptical Fourier Descriptors (EFD). As usually signatures are not represented as a closed contour, and being ...
  • Population ageing and ICT: An exploratory review of technology innovation trough digital applications
    Solé-Casals, Jordi; Vancea, Mihaela; March Amengual, Jaume Miquel; Villà-Freixa, Jordi (ScitePress, 2014)
    The multidimensional process of physical, psychological, and social change produced by population ageing affects not only the quality of life of elderly people but also of our societies. Some dimensions of population ageing ...
  • Post-Nonlinear Mixtures and Beyond
    Solé-Casals, Jordi; Jutten, Christian (TSI Press, 2004)
    Although sources in general nonlinear mixturm arc not separable iising only statistical independence, a special and realistic case of nonlinear mixtnres, the post nonlinear (PNL) mixture is separable choosing a suited ...
  • 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 ...
  • 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 ...
  • Simulated Annealing, High-Order Statistics and Mutual Information for Separation of Sources
    Solé-Casals, Jordi; Puntonet, Carlos G.; Rojas, I. (2001)
    In this article, the fusion of a stochastic metaheuristic as Simulated Annealing (SA) with classical criteria for convergence of Blind Separation of Sources (BSS), is shown. Although the topic of BSS, by means of various ...
  • Source separation techniques applied to linear prediction
    Solé-Casals, Jordi; Jutten, Christian; Taleb, Anisse (2000)
    The prediction filters are well known models for signal estimation, in communications, control and many others areas. The classical method for deriving linear prediction coding (LPC) filters is often based on the minimization ...
  • Speaker recognition improvement using blind inversion of distortions
    Faundez-Zanuy, Marcos; Solé-Casals, Jordi (2004)
    In this paper we propose the inversion of nonlinear distortions in order to improve the recognition rates of a speaker recognizer system. We study the effect of saturations on the test signals, trying to take into ...
  • Speech Enhancement: A Multivariate Empirical Mode Decomposition Approach
    Solé-Casals, Jordi; Gallego Jutglà, Esteve; Martí i Puig, Pere; Travieso, Carlos M.; Alonso, Jesús B. (Springer, 2013)
    Speech signals in real scenario ambient are usually mixed with some other signals, such as noise. This may interfere with posterior signal processing applied to the signals. In this work, a new technique of data denoising ...
  • Towards a low-complex breathing monitoring system based on acoustic signals
    Martí i Puig, Pere; Solé-Casals, Jordi; Masferrer Caralt, Gerard; Gallego Jutglà, Esteve (Springer, 2013)
    Monitoring the breathing is required in many applications of medical and health fields, but it can be used also in new game applications, for example. In this work, an automatic system for monitoring the breathing is ...
  • Web didáctica para la aproximación de funciones mediante redes neuronales
    Comabella López, Julio; Solé-Casals, Jordi; Hosseini, Sharam; Jutten, Christian (2002)
    In this article we presents a project [1] developed to demonstrate the capability that Multi-Layer Perceptrons (MLP) have to approximate non-linear functions [2]. The simulation has been implemented in Java to be used ...

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