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Subject: Re: Programs Learing

Author: margolies,marc

Date: 11:35:37 05/27/03

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here's what i can explain to you. first ct15 is different from ct14.
second the engines don't 'learn' in the chessbase gui-not literally- because
their parametric sttings arent changed. Third-- here's what happens- the chess
base gui has an option called 'book learning', which modifies the weight of
evaluations in the playing tree used by software(*.ctg file) in accordance to
actual performance of the engine using it, when this option is enabled. This
causes a few problems and has some advantages. problem one- tree is a big file
so when it is modified all the time, closing program becomes difficult under
modern OS like XP which uses system restore to backup changes in the tree.
problem 2- not everything learned in the book is correct so the machine could be
taught to avoid the best lines. good point one- adaptive behavior on the part of
the tree to the engine could lead to playing improvements providing that you
don't use --as an example- the same copy of pwerbook2003 on your harddrive for
all you r engines as this can presumably cancel out any adaptive advantage.

-marc




On May 27, 2003 at 14:20:25, Michael P. Nance Sr. wrote:

>Correct Me if I'm wrong. Fritz learns,(It changes the wieghts of choosing an
>Opening Book move ,from reading a Database),when You enble the "Learn form
>Database"function of the Program. Does Fritz learn any other way? I take for
>granted most of the other Chessbase Engines learn the same way? However,Chess
>Tiger 14(from Rebel), doesn't have this "Learn from Database" function. I don't
>know if Tiger has this ability now since It's under a Chessbase GUI, being sold
>as Chess Tiger 15? Does Tiger have the learning? Or is there some other way It
>learns? While on the same Subject does Shredder have a learning ability?
>Shredder 6, (by Millennium),never had this "Learn from Database" function as far
>as I knew. Since It's also sold by Chessbase now and under a Thier GUI,(sold as
>Shredder 7),does It pocess this ability? Futhermore,while beating on the same
>Drum,does any of the Chessmaster series have any type of learming at all? The
>reason I ask is because if Chessmaster has no learning at all will It aquirer
>this ability IF AND WHEN Chessmaster is absored by Chessbase? If I've got some
>or all of this wrong ,shoot it to Me straight please Fellows. >>>>Mike



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