smart battles

So I'm planning to implement smart battle selection this weekend. Every bot (or bot set) will get at least two battles, then I will choose battles to run (in batches since I don't want idle threads) based on trying to decrease standard error in the least amount of time. Maybe with some random battles sprinkled in as well.

I'm thinking I will choose bots with the highest value for: <math>{{stDev \over \sqrt{numBattles}} - {stDev \over \sqrt{numBattles + 1}}} \over {avgBattleTime}</math>

I think this will lead to an overall result with the highest confidence in the least amount of time.

I like testing against a test bed with an average score about the same as my RoboRumble APS. The problem with this is it includes a lot of bots with super low variance (eg, 99.9% scores), so running lots of battles against them is a waste of time. But ignoring them and using a stronger test bed risks specializing against stronger bots.