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2012 | OriginalPaper | Chapter
On Connection between the Convolutive and Ordinary Nonnegative Matrix Factorizations
Authors : Anh Huy Phan, Andrzej Cichocki, Petr Tichavský, Zbyněk Koldovský
Published in: Latent Variable Analysis and Signal Separation
Publisher: Springer Berlin Heidelberg
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A connection between the convolutive nonnegative matrix factorization (NMF) and the conventional NMF has been established. As a result, we can convey arbitrary alternating update rules for NMF to update rules for CNMF. In order to illustrate the novel derivation method, a multiplicative algorithm and a new ALS algorithm for CNMF are derived. The experiments confirm validity and high performance of our method and of the proposed algorithm.