Author: Christophe Theron
Date: 11:21:25 02/15/04
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On February 14, 2004 at 20:15:58, Bruce Cleaver wrote: >"Why not use a logarithmic scale based on the difference between the best >possible move and the move under consideration?" > >Ron Rivest (he is the "R" in the RSA encryption algorithm) wrote a chess >algorithm called min-max approximation, which computes the first derivative >(really!!) of the score's change as a means to shape the search. It has >somewhat the same flavor as your idea. > >It is really beautiful, but has two flaws: it is a best-first searcher >(therefore exponential in memory), and heavily involves floating-point calcs. >The first objection can be overcome in the standard way, but not the second. I see a third conceptual flaw: it's not intuitive. I don't see this idea as trying to mimic a human chess player's thinking process. Even MTD(f) seems more intuitive than this. If I had to try new ideas, I would not go into that direction. Christophe
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