On Sat, Feb 4, 2012 at 1:16 AM, Vlad Niculae <[email protected]> wrote:
> Sorry for being vague. NMF indeed tends to generally return sparse > representations. I meant sparse NMF as in an implementation of NMF that can > take sparse matrices as inputs (effectively keeping either the larger of W, H > or both as sparse matrices) Ah ok, you meant sparse input ;-) (If you need to update W and H often, keeping them in sparse format seems to be hard to me...) > The big picture is that the plain_sgd with non_negative flag will add > flexibility to more algorithms, right? I guess it could be used to do SGD-based NMF. Mathieu ------------------------------------------------------------------------------ Try before you buy = See our experts in action! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-dev2 _______________________________________________ Scikit-learn-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/scikit-learn-general
