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Looking for some software to deal with 50kx50k sparse matrix applying non-negative matrix factorization. Do you know any?

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migrated from mathoverflow.net Sep 2 '13 at 16:58

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Third hit in google leads me here: cs.helsinki.fi/u/phoyer/software.html –  Terry Loring Sep 2 '13 at 16:11
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It would help if you were a bit more verbose on what exactly you mean with "non-negative", and what kinds of factorizations you are looking for. What do you happen to know about your matrix? –  Wolfgang Bangerth Sep 3 '13 at 3:02
    
non-negative matrix factorization is a thing –  k20 Sep 3 '13 at 21:32

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