
Copyright (c) 2008 Uwe Schmitt, uschmitt@mineway.de
              2007 D. Kim, S.  Sra and I. S. Dhillon

              All rights reserved.

The algoritm FNMA^I was published 28 Dec 2007 in "Statistical Ana-
lyis and Data Mining" under the title

    "Fast Projection-Based Methods for the Least Squares Nonnegative
     Matrix Approximation Problem"

Sparse coded NNMA from:

    [1] P.O. Hoyer, "Non-negative sparse coding",
        Neural Networks for Signal Processing XII
        (Proc. IEEE Workshop on Neural Networks for Signal Processing 2002,
         Martigny, Switzerland)
        pp. 557-565, 2002.





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