Author: José de Jesús García Ruvalcaba
Date: 10:57:31 01/11/99
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On January 09, 1999 at 05:55:25, Graham Laight wrote: >As I was sitting eating my breakfast just now, it occured to me that there are >basically 3 items that, between them, will influence how close an evaluation of >a chess position is to how good that position really is: > >1. The number of pieces of knowledge the evaluation function can call upon > >2. The quality of those pieces of knowledge > >3. The accuracy of selecting the right pieces of knowledge (and their >appropriate weightings) for the position at hand > > >Does anybody have any thoughts about this? I think that different evaluation functions are not comparable by themselves. Overall program strength is. I mean, you can compare two evaluation functions once you have all the other components of the programs fixed; but with a different set of other components you can get different results. Among the "other components" I can see: 1. Hardware: processor speed, and amount of memory used for hash tables. 2. The search algorithm, including extensions. 3. The opening book. 4. Endgame tablebases. 5. The time control. I think that the correct "accuracy" of the weightings can dramatically change with these factors.
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