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Consulteu Articles, congressos, llibres per autor "Caiafa, Cesar F."

Consulteu Articles, congressos, llibres per autor "Caiafa, Cesar F."

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  • A Simple Approximation for Fast Nonlinear Deconvolution
    Solé-Casals, Jordi; Caiafa, Cesar F. (Springer, 2011)
    When dealing with nonlinear blind deconvolution, complex mathematical estimations must be done giving as a result very slow algorithms. This is the case, for example, in speech processing or in microarray data analysis. ...
  • A copula-based method for synthetic microarray data generation
    Lew, Sergio; Solé-Casals, Jordi; Caiafa, Cesar F.; Bau i Macià, Josep (2012)
    In this work, we propose a copula-based method to generate synthetic gene expression data that account for marginal and joint probability distributions features captured from real data. Our method allows us to implant ...
  • A Fast Gradient Approximation for Nonlinear Blind Signal Processing
    Solé-Casals, Jordi; Caiafa, Cesar F. (Springer, 2013)
    When dealing with nonlinear blind processing algorithms (deconvolution or post-nonlinear source separation), complex mathematical estimations must be done giving as a result very slow algorithms. This is the case, for ...
  • Gene filtering with optimal threshold selection
    Bau i Macià, Josep; Solé-Casals, Jordi; Caiafa, Cesar F.; Lew, Sergio (2012)
    Gene filtering is a useful preprocessing technique often applied to microarray datasets. However, it is no common practice because clear guidelines are lacking and it bears the risk of excluding some potentially relevant ...
  • Inverting Monotonic Nonlinearities by Entropy Maximization
    Solé-Casals, Jordi; Lopez-de-Ipiña, Karmele; Caiafa, Cesar F. (Plos One, 2016)
    This paper proposes a new method for blind inversion of a monotonic nonlinear map applied to a sum of random variables. Such kinds of mixtures of random variables are found in source separation and Wiener system inversion ...

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