Information theoretic versus cumulant-based contrasts for multimodal source separation


Recently, several authors have emphasized the existence of spurious maxima in usual contrast functions for source separation (e.g., the likelihood and the mutual information) when several sources have multimodal distributions. The aim of this letter is to compare the information theoretic contrasts to cumulant-based ones from the robustness to spurious… (More)
DOI: 10.1109/LSP.2004.840863


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