Author: karen Dall Lynn
Date: 10:35:14 01/26/02
Go up one level in this thread
On January 26, 2002 at 12:30:46, Mogens Larsen wrote: >On January 26, 2002 at 12:17:18, karen Dall Lynn wrote: > >>Hello >> >>Yes! I saw the learning after some rated games! >> >>However I still have some doubts. >> >>1) It seems that F7 does not learn my openings in white; I am not sure, but I >>moved g3 - which is 0 weighed defaut - three times, I lost of course, and G3 got >>no new value number. However every time Fritz play white, tabulation occurs to >>the first move (in rated games). > >Why would Fritz assess g3 differently when you lose with this move? I assume >that Fritz changes the evaluation of the responses to that move. The learning >only affects Fritz's moves, ie. a poor result (a loss against you for example) >after 1.g3 d5 means that the value of d5 is reduced and e5 might be tried the >next time you play g3. If Fritz plays white and wins or loses with 1.e4 then the >weights will change for that move, but not the weights for your response. > >In engine-engine matches where two engines use the same book, both engines >learn. So the weights of all the moves are changed. That's why it might be a >good idea to have separate books for both engines. > >Regards, >Mogens Yes, we have something here. I am starting to work with the hypothesis that Fritz 7 evaluates its own book moves in a much more strict manner than Fritz 6 - which quicly changes the weights. When I made the tests I played fast bullet against Fritz with random moves. And resigned. It is not impossible that the whole string of moves may have looked to Fritz as rubbish and rubbish it surely was. However it is still obscure for me why Fritz does not change the evaluation of the white moves when I play black against it and lose, with ordinary average player's black moves in a non-rated game. In this case there is no rubbish yet the weights remain unrevised. Thank you for your reply. Regards, Karen
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.