Author: vladan
Date: 05:35:26 11/08/05
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On November 07, 2005 at 09:53:40, Djordje Vidanovic wrote: >On November 07, 2005 at 08:29:00, vladan wrote: > >>On November 06, 2005 at 21:18:21, Djordje Vidanovic wrote: >> >>>If you take a look at this position you can see that Fritz 9 needs a decent >>>chunk of time to find the simple Rg3! It spends a lot of time on the simple pawn >>>to g4 and only after about 80 seconds (FX-53) switches to Rg3, eventually >>>announcing a mate in 23: >>> >>>[D] r6r/p2Q2pp/6k1/2P1pp2/1Pb5/R7/6PP/6K1 w - - 0 29 >>> >>> >>>It is interesting to note that Fritz 9 learns successfully, even though its >>>positional learning is all done in the RAM and gets cleared the moment you exit >>>Fritz. In a repeated try while I was still in the program, Fritz targeted Rg3! >>>right away never changing the winning line. >>> >>> >>>Djordje >> >>Very interesing observation Djordje, but I think its not machine learning, >>simply Fritz uses old hash generated by primary searching. Try to reset >>hash, and then search the position again. Ruffian also has advanced hash >>procedures to use previous search results, but it is only hashing. >> >> >>Best regards, >> >>Vladan > > >Hi Vladan, > >nope, Fritz 9 does learn albeit only during longer engine-engine matches that >are played non-stop, or while at the server overnight etc. > >Trust me, I know what I am saying :-) > > >Djordje Hi Djordje, you are right, Fritz 9 has adapted match learning, but there is nothing new, many other (even free) programs has the same procedure. The true machine learning is non-adapted (opponent indepedent learning). Fritz 9 has not that technique, for sure. Vladan
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