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Subject: Re: Have'nt anyone notice this BIG Problem?

Author: Peter Fendrich

Date: 07:59:18 11/20/03

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On November 20, 2003 at 09:54:12, Bob Durrett wrote:

>On November 20, 2003 at 09:27:12, Mathieu Pagé wrote:
>
>>On November 20, 2003 at 03:34:54, swaminathan natarajan wrote:
>>
>>>Hi
>>>
>>>the main problem is that engine-engine matches without opening book plays same
>>>moves for infinite games when given same time control
>>>
>>>i have kept 6 games series
>>>all the games played shows the same result
>>>match ends in a 3-3 tie........same moves till endings and insuffiecient
>>>material in the position
>>>
>>>i hope if the book is selected for the engine,the games will not be the same and
>>>the result may change?
>>
>>Yes, you are right, except if both engines take the same opening line again and
>>again.
>>
>>Some sort of opening learning will totaly avoid this behavior since the engines
>>will try to find a line that will give them something better than a draw.
>>
>>Mathieu
>
>The idea of using "some sort of opening learning" to cause chess-playing
>programs to explore new openings in engine-engine matches "without an opening
>book" is intriguing because it would be very interesting to see what the
>"engine" might come up with.  One reservation, however, is that the choices may
>not be truly without human influence.  It would depend on how the idea is
>implemented in software.  If human programmers were, in effect, making the
>decisions then the findings would be tainted by the scourge of "the human
>tendency to err."
>
>Perhaps it would be enlightening to review how opening learning is accomplished
>[implemented in software] in current-day chess programs.  My impression was that
>opening learning is accomplished by adjusting the probability settings in an
>opening book.  It doesn't have to be that way.  A programmer could find another
>way.
>
>Hopefully the "real" chess-playing program programmers will comment on how they
>might implement Mathieu's idea.
>
>Bob D.

Many (most?) learners will learn both inside the book as you mentioned but also
when out of book by storing the first x positions with associated scoring.

/Peter




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