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Subject: Re: How I Learned to Stop Hating 141

Author: Stuart Cracraft

Date: 14:30:18 09/03/04

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On September 03, 2004 at 16:52:34, Andrei Fortuna wrote:

>On September 03, 2004 at 15:41:42, Stuart Cracraft wrote:
>
>>On September 03, 2004 at 05:08:01, Andrei Fortuna wrote:
>>
>>>This makes me think how funny would be if two engines play, engine A would have
>>>all kinds of those extensions in case of check etc, engine B would have
>>>implemented a good eval function (with many terms regarding positional play) and
>>>in the match engine B leads engine A towards the positions where engine A
>>>discovers those mate attacks and so forth ahead of engine B, but he is on the
>>>losing side due to B's positional play.
>>
>>I think this kind of self-play event and auto-tuning and genetic algorithms
>>in general are under-estimated by the computer chess programmers. Just
>>because good results haven't been generated and there is no easy "elixer"
>>doesn't mean we shouldn't be trying it.
>>
>>Think of the time-savings. Heck, your auto-tune doesn't have to produce
>>Bob Hyatt hand-crafted Crafty evaluation coefficients for terms you have
>>to find and prove first -- but even if you don't produce something other
>>than what you are doing now but saving a lot of time, then you have profited
>>more.
>
>
>Hi Stuart,
>
>Wasn't talking about auto-tuning, just was thinking that if someone invests in
>evaluation function versus someone who invests in various extensions - the
>former wins the game. Of course in reality programmers usually take care of both
>areas ...
>
>Andrei

Yes -- I understand you weren't -- but there is a big savings if you do
it right.

For me, it is worth investigating as I don't want to spend the rest of
my life tuning evaluation functions.



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