Author: Bertil Eklund
Date: 16:35:03 11/19/05
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On November 19, 2005 at 18:36:43, chandler yergin wrote: >On November 19, 2005 at 17:33:37, Bertil Eklund wrote: > >>On November 19, 2005 at 05:50:31, Uri Blass wrote: >> >>>I wonder what happened to the famous learning of the chessbase programs >>> >>>From the fruit page about future plans: >>> >>>"Book-learning and position-learning (perhaps but not very likely - >>>book-learning is not easy to implement in a UCI-Engine)" >>> >>>Note that the chessbase programs are supposed to have book learning and I >>>remember that old Fritz beated Rebel8 again and again in the same line because >>>Rebel did not have book learning. >>> >>>People could expect based on these observations that Fruit is going to lose >>>matches in the ssdf because of lack of learning (or at least to score worse in >>>the second half of the match but I do not see it happens). >>> >>>I wonder if there is a bug in the implementation of learning by chessbase. >>> >>>Note that based on the match against shredder9 that is supposed to have >>>positional learning it seems that positional learning also did not help Shredder >>>against fruit. >>> >>>I did not look at the games of the ssdf to find out but I wonder if the >>>opponents of fruit did not try to repeat lines that they beated fruit and I >>>wonder if it had no effect(even if they cannot repeat the same lines exactly I >>>expect repeating similiar lines to have bigger probability to lead to similiar >>>results). >>> >>>Is there something wrong in my assumptions? >>> >>>Uri >> >>Positive learning don't work with (if not the opening are totally winning) >>engines like Shredder, Nimzo and Comet for example, because these engines plays >>different moves and lines (if not forced) in each and every game because of >>hashing (?) or some other factor that makes them play different moves in the >>same position. >> >>Bertil >They 'evaluate' every legal move in every position on the board. >This becomes the Root position and the Search & Evaluation begins again. Ok, but something is different in comparison to in example older Rebels that play the same moves and lines over and over again. Bertil
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