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Subject: Re: evaluationfunction tuning

Author: David Dahlem

Date: 11:16:04 09/07/03

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On September 07, 2003 at 14:04:19, Uri Blass wrote:

>On September 07, 2003 at 13:52:21, David Dahlem wrote:
>>On September 07, 2003 at 13:16:50, Uri Blass wrote:
>>>On September 07, 2003 at 11:35:48, JW de Kort wrote:
>>>>Hi friends,
>>>>I have recently spend a lot of time improving my evaluationfunction. I have
>>>>added a lot of features and studied a number of sources (Crafy, Gerbil, TSCP,
>>>>Phalanx, Beowulf etc.). Still my engine is not able to beat TCSP 181 in all
>>>>games. Now i want to fine tune the evaluation features. Can anybody give me some
>>>>advice how to ga ahead with this process? Is there a EPD set available of good
>>>>testing positions for this purpose?
>>>>Thnak in advance.
>>>>Jan Willem
>>>What is your target?
>>>If your target is to improve your engine then I think that it is better if you
>>>work about search.
>>>Gerbil has almost no evaluation but it is clearly better than tscp and the
>>>reason is search.
>>And Gerbil would be even better with an improved evaluation!
>Gerbil also can be better with improved search.
>My point is that if you are not at the level to be clearly better than tscp
>then search is the main thing that can help you to improve your engine.

My point is improvements in any area will make an engine better, but the
original post was asking about how to improve evaluation.


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