Non-negative matrix factorization: Difference between revisions

Revision as of 10:54, 10 February 2006

Revision as of 11:40, 16 February 2006

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It was used by a Finnish group of researchers in the middle of the 1990s under the name ''positive matrix factorization''.

It became more widely known after Lee and Seung's investigations of the properties of the algorithm, and after they published a simple useful algorithm.

There are different types of non-negative matrix factorizations and one of these is related to [[probabilistic latent semantic analysis]] and the [[latent class model]].

== Uniqueness ==