Author: stuart taylor
Date: 16:04:47 04/09/00
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On April 09, 2000 at 16:05:04, Christophe Theron wrote: >On April 08, 2000 at 19:53:41, stuart taylor wrote: > >> So does junior 6 have the greatest knowledge or not? How did it fall so >>much? If you would take its recent results without mixing them with the old, >>then it would be even worse! how do the programs fluctuate so much from one >>2-month period to the next? maybe some technical reasons? or maybe fritz 6 >>had technical problems which are now corrected? I mean fritz 6 was behind junior >>on last ss list also. > > >Read the SSDF list again. Fritz6 has never been on the SSDF list before. > >Further, it's natural that ratings of programs fluctuate. If you read the list >carefully, you notice that ratings are published with an error margin (the "+" >and "-" columns). It's because of the nature of the ELO calculations. Unless you >play an infinite number of games, you cannot be 100% sure of the rating you get. >Instead, you get a rating AND an error margin. > >The only thing you can say about Junior6 by reading the current list, is that we >are 95% sure that it is rated between 2659 and 2720 ELO. The value 2689 in >itself is MEANINGLESS. > >The playing strength of the programs do not fluctuate. But the measure of this >playing strength DOES fluctuate, because it becomes more and more accurate as >more games are played. > >It is very important to read the error margin when you read the SSDF list. Or >else, you'll miss a very important part of the information. > > > > Christophe Thanks! however I am aware of that basically, but I still get dissapointed when I have to change my illusions, since I am particularly interested in getting one program which is above all others, so I don't need to consult many programs when analysing a position, and also to have a standard to judge everything else by including myself, and to learn from-and not to feel I must try out every new program the whole time. And-not to get confused. ss rating list refers to "selective search". regards, Stuart Taylor > > > > > >>
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