On affine non-negative matrix factorization

Hans Laurberg, Lars Kai Hansen

AbstractWe generalize the non-negative matrix factorization (NMF) generative model to incorporate
an explicit offset. Multiplicative estimation algorithms are provided for the resulting sparse
affine NMF model. We show that the affine model
has improved uniqueness properties and leads to more accurate identification of mixing and sources.
TypeConference paper [With referee]
ConferenceICASSP 2007, Hawaii, USA
Electronic version(s)[pdf]
BibTeX data [bibtex]
IMM Group(s)Intelligent Signal Processing

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