scikit-learn/scikit-learn — pull request #1076 by amueller (2012-08-27 12:15:20+00:00)
Title: ENH support custom kernels on sparse matrices

I think I mentioned this on the ML. We don't actually need sparse kernels, we just need kernels on sparse data.
This fixes code that previously did random memory access.... maybe should put a guard up somewhere.

Closes #918.