Mon, 19 Sep 2011 ⊕Category: scikit-learn
#dictionary learning #scikit-learn

Thanks to Olivier, Gaël and Alex, who reviewed the code heavily the last couple of days, and with apologies for my lack of activity during a sequence of conferences, Dictionary learning has officially been merged into scikit-learn master, and just in time for the new scikit-learn 0.9 release. Here …

Thu, 11 Aug 2011 ⊕Category: scikit-learn
#blas #efficient #lapack #numpy #omp #orthogonal matching pursuit #potrs #scipy #dictionary learning #python #scikit-learn

EDIT: There was a bug in the final version of the code presented here. It is fixed now, for its backstory, check out my blog post on it.

When we last saw our hero, he was fighting with the dreaded implementation of least-angle regression, knowing full well that it was …

Sun, 07 Aug 2011 ⊕Category: scikit-learn
#efficient #numpy #omp #orthogonal matching pursuit #scipy #dictionary learning #scikit-learn #python

After intense code optimization work, my implementation of OMP finally beat least-angle regression! This was the primary issue discussed during the pull request, so once performance was taken care of, the code was ready for merge. Orthogonal matching pursuit is now available in scikits.learn as a sparse linear regression …