Author: Uri Blass
Date: 09:14:38 05/24/01
Go up one level in this thread
On May 24, 2001 at 08:24:47, Rajen Gupta wrote: >On May 24, 2001 at 07:55:37, Mogens Larsen wrote: > >>On May 24, 2001 at 07:36:12, Rajen Gupta wrote: >> >>>something to do with the learning function, not just in openings but also i >>>suspect during the game itself when it plays an alternate move, which may turn >>>out to be better. >> >>When did Frans Morsch implement position learning? >> >>Mogens. > >i dont know but i have noticed it in a few games. dont ask me for examples, i >dont have them > >rajen 1)I do not know about what you are talking. I know that if I ask Fritz to analyze position and after it load another engine fritz does not learn from previous analysis. There are other programs who do learn from previous analysis(Shredder) so it seems that Fritz does not have position learning. I do not have the autoplayer and maybe when Fritz is using the autoplayer it does something different. 2)I do not think that position learning is important in the ssdf matches because the openings are not the same. My guess is that Fritz wins long matches because of the fact that it has bigger book than the opponents. If one program has bigger book than it is going to find it more easy to repeat good opening for itself even if it does not repeat games. For example suppose one program can score good results with 1.h4 when the opponent can score good results with 1.a4 Suppose Deep Fritz has 1.h4 in it's book and after enough games it discovers that 1.h4 is good for it and can repeat it(it cannot repeat exactly the same game but it is not important because the games are similiar). The opponent has not 1.a4 in it's book for white because it knows that 1.a4 is a bad move so it has no chance to discover that Fritz does not know how to play against 1.a4. This example is an extreme example and books usually do not include these bad moves but basically a big book that includes also a lot of bad moves can help a program to win if the match is long enough because it is going to learn to avoid the practically bad lines after enough games when the opponent can do nothing against the good lines and learning by position is not very important if you get a position that your evaluation is wrong. It is better to give programs bigger books if the matches are longer. The matches of the ssdf are not infinite so having too big books is also not a good idea. Uri
This page took 0.01 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.