If gnubg could estimate the opponents rating based upon error rate then
it could be more aggressive
on a redouble since the other player is likely to make errors to modify
the cube decision.
This may have NOTHING to do with what your're talking about right now... :)
Tom
On 12/16/2011 06:43 AM, Ian Shaw wrote:
Øystein Schønning-Johansen wrote:
*Sent:* 12 December 2011 20:59
So, we don't care about the exactness of the absolute evaluation, we
care about the relative evaluation between the moves (or resulting
positions after each move). That is what makes it select good moves!
This strategy was originally adopted by Tesauro. I agree that it is
fine for chequerplay, where you only have to find the best play
relative to the alternatives.
However, for cube decisions it is important to know the absolute
equity. It is known that gnubg is inaccurate in some areas, most
notably holding-game cube action, where gnubg overestimates the
holding player's chances. I wonder if this is due to only training for
relative move selection.
It might be worth devising a training regime that trains for absolute
equity. This ought to give good chequerplay, too, since if the nn can
accurately determine the absolute value of each position it will
inevitably rank candidates correctly, too.
n Ian
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