scikit-learn/scikit-learn — pull request #1232 by amueller (2012-10-09 20:13:06+00:00)
Title: WIP Speed up K-Means m-step

Rewrite loop over means as loop over samples.
In case of 2 means (which I think is most adversary) with 1000 samples and 784 features,
I get a 50% speedup.

Closes #724.