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Subject: Re: Evaluation Accuracy

Author: Ricardo Gibert

Date: 18:23:54 11/18/00

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On November 18, 2000 at 12:37:20, Amir Ban wrote:

>On November 18, 2000 at 06:03:39, Graham Laight wrote:
>
>>On November 17, 2000 at 19:24:23, Amir Ban wrote:
>>
>>>
>>>If your criterion of knowledge is based on accuracy of evaluation then I
>>>respectfully apply for membership in the exclusive "knowledge based" club (and
>>>IMO some members don't belong there).
>>>
>>>BTW, accuracy of evaluation is the best criterion for being knowledgable that
>>>I'm aware of. I've posted here in the past that, to start with, we don't have a
>>>real definition of what good evaluation means. This is the focus of my work with
>>>Junior for more than a year.
>>
>>IMHO, a truly accurate evaluation of a position would yield one of the following
>>3 ordinal values:
>>
>>Win
>>Draw
>>Lose
>>
>>-g
>>
>>>Amir
>
>I can easily fake evaluation that gives only those values. I suppose that you
>mean that the values should be true values. How do you propose to do that ? If I
>have an eval that gives absolutely correct values 60% of the time (and the rest
>wrong), do you expect my program to be weak or strong ? If I get 70% right, am I
>necessarily stronger ?
>
>The question is, given two evaluation functions, to decide which is more
>accurate.
>
>This is a good question. Your answer does not seem to lead anywhere.
>
>Amir

With 100% correct evaluations of just win, lose or draw, can a program mate in K
+ R vs K? I think it will just wander around unless mate happens to fall within
the program search horizon. Yes?



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