Author: Robert Hyatt
Date: 06:21:03 08/20/99
Go up one level in this thread
On August 20, 1999 at 03:31:28, Shep wrote: >On August 20, 1999 at 03:16:04, Terry Ripple wrote: > >>I noticed that when i do engine vrs engine matches with Hiarcs7.32 and other >>chessbase engines that have these learning features, after 50 or so blitz games >>i sometimes have a really weird "learned" opening book that was created from the >>book learning! Lets say Hiarcs won its first game with the opening move b4 or >>maybe g3, then it will play these lines all the time until it starts losing with >>these lines. After these kind of matches, my learned opening book would >>only play e4 and b4 or in another case it would only play g3 and b3? >> I know that i can turn off the tournament mode to get my normal book back or i >>could also re-set the book but is this learning feature mainly for developing an >>opening book against its opponent or was it developed mainly to kill another >>program early on. >> Also, is it wise to have the position learning on in blitz matches with engine >>vrs engine, because the games not being of high enough quality? > >In general, the learning influence of Blitz games is less than that of >tournament TC games, but you are right, if you are playing dozens of Blitz >games, the small values add up to something significant. > >I have adopted the custom of either starting every new tournament with a fresh >book (especially since I have many engines using the General.ctg) or keeping >separate copies of books with learning from Blitz and tournament games. > >Book learning is a wonderful thing as long as you stick to one type of time >control only (some occasional Blitz games don't matter much, though). > >--- >Shep In the case of 'crafty' this is moot. I adjust the learning stuff internally based on the depth of search I reach... so blitz games are not as 'trusted' as long games, and this is self-adjusted...
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