hi, have you played with the sparseness parameter of the NMF estimator?
Alex On Wed, Jun 25, 2014 at 3:42 PM, Vamsi Krishna Potluru <vamsi.potl...@rutgers.edu> wrote: > Hello, > > I have worked a bit on the sparse NMF model proposed by Hoyer [1]. The > paper is mentioned in the Scikits NMF module but AFAIK the model is > currently not implemented. Recently, we proposed an efficient algorithm > based on block coordinate descent [2]. A reference python implementation is > available at: > > https://github.com/ismav/sparseNMF > > Kindly let me know if this would be of interest to the Scikits-learn > community. > > Thanks, > > ~Vamsi. > > > [1] Hoyer, P. O. (2004). Non-negative Matrix Factorization with Sparseness > Constraints. Journal of Machine Learning Research, 5, 1457-1469. > > [2] Block Coordinate Descent for Sparse NMF > > Vamsi K. Potluru, Sergey M. Plis, Jonathan Le Roux, Barak A. Pearlmutter, > Vince D. Calhoun, Thomas P. Hayes. ICLR 2013. > > http://arxiv.org/abs/1301.3527 > > > ------------------------------------------------------------------------------ > Open source business process management suite built on Java and Eclipse > Turn processes into business applications with Bonita BPM Community Edition > Quickly connect people, data, and systems into organized workflows > Winner of BOSSIE, CODIE, OW2 and Gartner awards > http://p.sf.net/sfu/Bonitasoft > _______________________________________________ > Scikit-learn-general mailing list > Scikit-learn-general@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/scikit-learn-general > ------------------------------------------------------------------------------ Open source business process management suite built on Java and Eclipse Turn processes into business applications with Bonita BPM Community Edition Quickly connect people, data, and systems into organized workflows Winner of BOSSIE, CODIE, OW2 and Gartner awards http://p.sf.net/sfu/Bonitasoft _______________________________________________ Scikit-learn-general mailing list Scikit-learn-general@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/scikit-learn-general
