bug-gnubg
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Bug-gnubg] Question: Interpreting Evaluation Results


From: Christian Anthon
Subject: Re: [Bug-gnubg] Question: Interpreting Evaluation Results
Date: Mon, 2 Mar 2009 21:16:11 +0100

It is generally not advisable to compare evaluations using different
parameters. This is particularly true for gnubg which has an
odd-ply/even-ply problem. In short, you should evaluate all the moves
you wish to compare at the same ply.

Christian.

On Mon, Mar 2, 2009 at 8:29 PM, Bob Hart <address@hidden> wrote:
> Hi-
>
>  I would like to understand how to interpret evaluation results presented
> with different plies and out-of-order equities.
>
>  In reviewing the results below, I would ideally want to conclude "at a
> glance" that gnubg evaluates 24/21 13/9 as the best play, because it is at
> the top of the list. It appears, however, that the moves are not sorted
> primarily in equity value, but rather by ply-value and then by equity value.
> So is gnubg saying that the best move is the first one, 24/21 13/9, or is
> the best move the third one, 24/20 13/10, which has the best equity?
>
> 1 Cubeful 5-ply -0.199          24/21 13/9
> 2 Cubeful 4-ply -0.163  +0.036  13/10 13/9
> 3 Cubeful 2-ply -0.155  +0.044  24/20 13/10
> 4 Cubeful 2-ply -0.182  +0.017  24/21 24/20
> 5 Cubeful 2-ply -0.217  -0.018  13/9  8/5
> . . . Many more moves, all with worse equity . . .
>
>  Thanks for any insight.
>
> -Bob
>
>
>
>
>
>
>
> _______________________________________________
> Bug-gnubg mailing list
> address@hidden
> http://lists.gnu.org/mailman/listinfo/bug-gnubg
>




reply via email to

[Prev in Thread] Current Thread [Next in Thread]