Author: James T. Walker
Date: 07:20:48 01/01/00
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On December 31, 1999 at 22:12:37, blass uri wrote: >On December 31, 1999 at 20:13:43, Bertil Eklund wrote: > >>On December 31, 1999 at 15:44:40, blass uri wrote: >> >>>On December 31, 1999 at 15:09:15, Leon Stancliff wrote: >>><snipped> >>>> Doubling the speed of the engine is supposed to produce an increase of about >>>>60 elo points. >>> >>>I do not think that this assumption is right against humans. >>> >>>Uri >> >>Hi! >> >>Why? >> >>Bertil > >because human-computer games are different and good humans often have a long >plans when being twice or 3 times faster cannot help the computer. > >Uri Hello Uri, You may be right. I assume you think that a doubling of speed is worth LESS than 60 points. You must also consider that if you are right then a processor running at 1/2 speed does not lose 60 points either. Are you so sure about that?? Doubling speed gives the program 2 times as much information and vs computers it is easy to prove that the gain is very close to the 60 points most people accept. Of course you can point out inconsistent cases where it does not prove out but I think if you take all aspects of the game into account you will find it's (60 Points) about right vs humans too. This may diminish as ratings get higher because most ratings systems use different "K" factor to calculate the ratings. The ICC ratings are inflated I think partly because they use K=32 for all players while the USCF uses K=8 for 2400 and above. The lower K factor causes more stability in the ratings and less inflation at the higher levels. This may be what is causing the 60 points to diverge at higher ratings and to be even more at lower ratings. This is all my theory of course. Seasons Greetings, Jim Walker Jim Walker
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