Author: Uri Blass
Date: 00:54:23 08/01/01
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On August 01, 2001 at 02:06:06, Dann Corbit wrote: >On August 01, 2001 at 02:01:45, Uri Blass wrote: > >>On August 01, 2001 at 01:44:33, Dann Corbit wrote: >> >>>On August 01, 2001 at 01:40:03, Uri Blass wrote: >>> >>>>On July 31, 2001 at 18:49:37, Dann Corbit wrote: >>>> >>>>>On July 31, 2001 at 18:36:53, Otello Gnaramori wrote: >>>>> >>>>>><snip> >>>>>>Franz Morsch saying the main difference between this version of Fritz compared >>>>>>to its predecessors did not lie so much in greater chess knowledge but more due >>>>>>to the machines newfound ability to deal with anti-computer chess strategy, and >>>>>>to learn from its mistakes. He also said that he believed that this incarnation >>>>>>of Fritz is every bit as strong as the Deep Blue II that defeated Kasparov and >>>>>>has far greater "chess knowledge". >>>>>><snip> >>>>> >>>>>For a machine with many thousands of tunable chess parameters, carefully >>>>>adjusted by teams of programmers and GM's >>>> >>>> >>>>carefully adjusted by programmers and GM's? >>>>I doubt it. >>> >>>The programmers first used a gradient method, which was based upon thousands of >>>GM games. Then, individual parameters were hand-tuned by the GM's advice. >> >>I doubt if using GM's games to adjust the evaluation is a good idea. >>I also doubt if GM's advise for parameters is a good idea because I believe that >>the GM's do not think in the numbers of computers in games. >> >>The GM's have not time to calculate evaluation in the computer way and I do not >>think the advantage of GM's against computer is because of a better static >>evaluation. >> >>The advantage of humans against computers is their ability to think and change >>their evaluation during the game and the ability to plan that is not about >>evaluation. > >I might be wrong, but I rather suspect that all of the best computer chess >programs have advice incorporated from GM's. Perhaps some of it is indirect >(e.g. someone advised Robert Hyatt, someone looked at Hyatt's code). I suspect that it is only a small part of the work about chess programs. The biggest part is testing changes and I guess that it is done by games or test positions and not by GM's. Building the right test positions may be also a lot of work because good test positions should be taken from games when in part of the cases there is no tactics and the problem is to find a good positional move. Uri
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