Deb Mukherjee c6f1bf4321 Differential encoding of probability updates
Adds differential encoding of prob updates using a subexponential
code centered around the previous probability value.
Also searches for the most cost-effective update, and breaks
up the coefficient updates into smaller groups.

Small gain on Derf: 0.2%

Change-Id: Ie0071e3dc113e3d0d7ab95b6442bb07a89970030
2012-04-23 23:02:52 -07:00
..
2012-02-28 17:55:42 +00:00