Author: Roger
Date: 10:24:32 12/10/99
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I don't see any problem with recalibrating the SSDF, though doing it with as many of the top programs as possible and with as large a sample of games as possible would be recommended. Whether it should be done, or not, can be settled empirically. Differences between the ELOs of two players translate into probabilities of winning and losing. Accordingly, it ought to be possible to develop the recalibrated ratings using a pool of, say, twenty games of three programs at 40/120, and then how that these new ratings predict the pattrern of wins and losses better than the old ratings. No one can argue with that. And until it can be shown that the new ratings are better able to predict that the old ones, then I'd just leave it alone. Recalibration is inevitable, because GM-computer games will become much more common. Roger
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