Technical Program

Paper Detail

Paper:MLSP-L2.3
Session:Blind Source Separation
Time:Friday, May 21, 13:40 - 14:00
Presentation: Lecture
Topic: Machine Learning for Signal Processing: Blind Signal Separation and Independent Component Analysis
Title: A BAYESIAN METHOD FOR POSITIVE SOURCE SEPARATION
Authors: Saïd Moussaoui; CRAN CNRS UMR 7039 UHP 
 Ali Mohammad-Djafari; LSS-Supelec-Universite Paris-Sud 
 David Brie; CRAN CNRS UMR 7039 UHP 
 Olivier Caspary; CRAN CNRS UMR 7039 UHP 
Abstract: This paper considers the problem of source separation in the particular case where both the sources and the mixingcoefficients are positive. The proposed method addresses the problem in a Bayesian framework. We assume a Gamma distribution for the spectra and the mixing coefficients. This prior distribution enforces the non-negativity. This leads to an original method for positive source separation. A simulation example is presented to illustrate the effectiveness of the method.
 
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