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Subject: Re: Shredder 9 UCI has .pl2 memory problems

Author: Steve Glanzfeld

Date: 08:41:46 03/27/05

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Usually there is a certain evaluation difference required for position learning.
I don't know how Shredder 9 exactly does it, but I assume when it for example
analyses move A +0.20 for a while, and then finds the better move B +0.25, it
will most probably NOT learn. IIRC, I once saw a description of the position
learning function of another engine, which required evaluation jumps of at least
+/- 0.30 or bigger, to learn. So, I think that would remember a new move C +0.50
(or better) in the example above, or when move A suddenly is evaluated -0.30 (or
worse) after deeper analysis.

(0.30 is just an example value i seem to remember)

Steve



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