scikit-learn/scikit-learn — pull request #3249 by MechCoder (2014-06-05 10:43:38+00:00)
Title: Change the default of precompute from "auto" to False 

The Gram variant has been found to be slower, then the normal update rules. See the discussion in https://github.com/scikit-learn/scikit-learn/pull/3220 . So the default is changed from "auto" to False.