Author: David Dahlem
Date: 14:04:37 11/20/00
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<snip> > >>also it seems if the program uses losses to tune it;s eval, then it can be >>misinterpreted. >>for instance, result from a game that was played in 5 min/game, will have lesser >>values of importance then a game that was played at 40/40 or 40/60. >> >> >>so it can be interpreted that an exchess version that plays only 5min blitz will >>have one kind of tuned eval, while the other one that plays mainly 40/40 will >>differant. Which one is best? :) >> > >Yes, the learning results from 5 min blitz games might be quite different from >40/40. One test I did was 200 games with crafty at 1 min bullet. EXchess lost >a large percentage of the games in the first 100, but did much better in the >second 100 (EXchess still clearly lost the match, but the results were >significantly closer than the first 100 games). However, when I then matched >this version of EXchess against GNUchess at longer time controls (5 min blitz, I >think), my results were not better (and actually a bit worse) than before the 1 >min bullet games against crafty. > > - Dan > Along the same line, I have a question. Will losing to a much stronger engine such as Fritz6 or losing to a program weaker than Fritz6, cause EXchess to learn much faster or supposedly get stronger quicker? Dave
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