opencog/opencog — pull request #200 by linas (2013-05-24 20:33:22+00:00)
Title: Moses: extend _perm_ratio in backwards-compat way.

It seems that the old code (a few months ago) build significantly
fewer pairs than the current code, and this strongly affects scores
and learning. So extend the meaning of _perm_ratio in a backwards-
compatible way, so that this can be explicitly controlled and tested.