Online algorithms for nonnegative matrix factorization with the Itakura-Saito divergence


Nonnegative matrix factorization (NMF) is now a common tool for audio source separation. When learning NMF on large audio databases, one major drawback is that the complexity in time is O(FKN) when updating the dictionary (where (F,N) is the dimension of the input power spectrograms, and K the number of basis spectra), thus forbidding its application on… (More)
DOI: 10.1109/ASPAA.2011.6082314


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