Non-negative matrix factorization: Difference between revisions

Revision as of 10:50, 11 January 2006

Revision as of 17:54, 12 January 2006

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'''Non-negative matrix factorization''' (NMF) is a group of [[algorithm]]s in [[multivariate analysis]] and [[linear algebra]] where a [[matrix]] is factorized into (usually) two matrices

: <math>\mathbf{XWH} \leftarrow \operatorname{nmf}(\mathbf{WHX})</math>

Usually all three matrices must be [[non-negative]], i.e., all elements must be above or equal to zero.