Author: Christophe Theron
Date: 16:38:09 04/15/02
Go up one level in this thread
On April 15, 2002 at 13:08:16, Gian-Carlo Pascutto wrote:
>On April 14, 2002 at 20:00:55, Christophe Theron wrote:
>
>>1) I do not know how to "tune" my program to make it better against a given
>>opponent. I do not know how to "tune" for a given time control either. "Tuning"
>>is something like an urban legend in computer chess. People have no idea of the
>>difficulty to do this, so when they need to explain something strange they will
>>say that some "tuning" has been done. People cannot admit that they do not know,
>>so they'll use whatever obscure explanation they have at their disposal.
>>"tuning" and "will be better at longer time controls" are great classics in this
>>area.
>
>I'll give an example.
>
>My program has some areas of the evaluation that have a certain
>weight and are somewhat independent. This could be kingsafety,
>pawn structure, etc...
>
>I have to find a balance between those. I did so by choosing a few
>candidates on intuition that I thought would probably be the best,
>and let them play >2000 games against a wide variety of amateur and
>professional programs.
>
>I pick the settings with the best performance.
>
>I could do the same again, but only play one opponent at a time,
>and remember which settings have the best score.
>
>I have no idea whether the different settings would cause singnificantly
>different performances vs certain opponents, though. But I will
>certainly try this if I play another tournament.
>
>>If I had more computers at my disposal I would not use them to play against my
>>top competitors.
>
>I find this an interesting statement. Since one only fixes weaknesses when
>they are repeatedly exposed, one would want an opponent that is able to
>pound them often. I would expect that your top competitors are best at this?
There are so many problems and holes to fix in Chess Tiger (and in any current
top program anyway) that I do not even need top competitors in order to find
them. :-)
Christophe
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