Author: Uri Blass
Date: 13:53:12 05/07/01
Go up one level in this thread
On May 07, 2001 at 16:27:19, Robert Hyatt wrote: >On May 07, 2001 at 15:43:50, Uri Blass wrote: > >>On May 07, 2001 at 14:43:05, Robert Hyatt wrote: >> >>>On May 07, 2001 at 12:30:30, Vincent Diepeveen wrote: >>> >>>>> >>>>>No, he didn't "prove" anything at all. You can't take output from a program, >>>>>output that is incomplete due to the way they produce their PV, and then try to >>>>>draw conclusions from it. Any more than you can take evaluations and draw >>>>>conclusions from them without any idea of what the evaluation looks like >>>>>internally... >>>> >>>>It's hard to argue with scores produced Bob!\ >>> >>>Why is that? Crafty vs Diep. Crafty says +2.5, Diep says -.2, Crafty >>>wins. Big score difference. You do things (queen is way better than 2 >>>rooks, for example) that I consider unsound. >> >>This is a different case because there is a clear explanation for the difference >>in evaluation. >> >>I do not find a good explanation for the difference in the evaluation between >>deeper blue and the top programs and I see it as an evidence that deeper blue is >>simply worse. > >I try not to jump to conclusions when I don't have any evidence. Often as not, >I am wrong... > > > > >> >>I do not believe that we can learn nothing from the logfiles of deeper blue. >>I need to see good moves of Deeper blue when all the top programs need hours to >>find in order to be convinced that deeper blue was stronger than the top >>programs of today. > >I don't say we can learn nothing. I do say that you can't take their scores, >and their partial PV, and try to compare them to today's program outputs. >Because DB's PVs were always shorter than what was actually searched. Trying to >speculate on what they saw, to explain a score they displayed, is futile... I am looking only at the first plies of the pv. I do not suggest using the length of the pv. Uri
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