Author: Christophe Theron
Date: 13:30:15 01/18/00
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On January 18, 2000 at 10:32:51, Enrique Irazoqui wrote:
>I noticed that sometimes Tiger keeps playing the same losing opening lines. In
>the match Tiger-Hiarcs, games 6 and 10 are D10 openings, identical until 14...
>e6, where Hiarcs shows an evaluation of 0.82 from its point of view. Tiger lost
>them both. Games 17 and 19 were A45 lines that immediately out of book Hiarcs
>evaluated as 0.57 in its favor. Again, Tiger lost both games. It seems that
>there is a learner problem that will allow Tiger to play repeatedly the same
>losing lines.
You are right Enrique. This is not a bug, I would rather call it a design flaw.
I have written a simple learning algorithm because I did not want to invest too
much time in it. In fact I had almost no time to invest, so I have done my best
in a very tight schedule.
My philosophy has always been to put my efforts on the real stuff: the engine
itself.
But I'll have to work harder on the learning system, because as you have heard
recently, Junior6 is badly taking advantage of this (I have heard it has
repeated TWELVE TIMES the same won opening in one of the SSDF matches). :(
Christophe
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