Author: Henrik Dinesen
Date: 04:31:44 08/28/05
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On August 27, 2005 at 17:19:17, Thomas Logan wrote: >On August 27, 2005 at 14:40:14, Norm Pollock wrote: > >>On August 27, 2005 at 13:19:30, Thomas Logan wrote: >> >>>Under edit opening book in chessbase gui is an option to learn from database >>> >>>Can someone give me some information on this ? >>> >>>Does it permently rewrite the opening book ? >>> >>>Any experience with this ? >>> >>>Tom >> >>I fooled around with this awhile ago. I'm not sure how it works. This is just a >>wild guess. >> >>An opening book consists of a tree of positions together with statistics about >>frequency of occurrence and wins/draws/losses. When you import a pgn file for >>example, you get the positions AND the stats for each position put into your >>book. >> >>But suppose you only want the stats without any additional positions put in. >>Then you would use the "learn" feature. Example of use. >> >>Suppose you import a pgn file to make a book. And suppose you have a second pgn >>file that includes additional positions that you do NOT want to put into book, >>yet you want the stats in the 2nd pgn file that relate to the positions that >>occurred in the 1st pgn file. So you "learn" from the 2nd pgn file. >> >>Example: You have a pgn file based on games of players 2600+ played during >>2004-5. And suppose you want to add stats to those positions based on the play >>of Fischer. So you could "learn" from a pgn of Fischer games, you but have to >>separate into a white pgn and a black pgn first and "learn" from each so that >>you only get the stats from Fischer's moves. > >Hi Norm > >Thanks for the explaination > >Tom That was what Alex Schmidt with the Fruit book, made the book learn from Fruit games. Henrik
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