After reading the relevant code, I realized that val_scale=1.0 should do precisely what I wanted. I have tested it a bit, and so far so good.
Thanks! Álvaro. On Tue, Nov 17, 2015 at 7:12 AM, Petr Baudis <pa...@ucw.cz> wrote: > Hi! > > On Tue, Nov 17, 2015 at 07:05:34AM -0500, Álvaro Begué wrote: > > If anyone knows of a program that can actually use something like > expected > > score in the UCT move selection formula, that's probably what I need. I > > might end up modifying Pachi to do this, but it sounds daunting. > > That's already implemented - see the options described in uct/uct.c > under the heading "Node value result scaling". > > This even is one of the things that happens when you enable > maximize_score, but the score takes just (at most) 0.01 of the value, > where 0.99 is depending on win/loss. You might try to see what happens > if, in addition to maximize_score, you also pass > > val_scale=0.1 > > (instead of the default 0.01) or even larger value. Not sure what > effect on strength it might have. > > Petr Baudis > _______________________________________________ > Computer-go mailing list > Computer-go@computer-go.org > http://computer-go.org/mailman/listinfo/computer-go >
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