Author: Mike Byrne
Date: 23:28:31 05/25/02
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>I do not know why did you decide that tiger14 is the best program in the world. > >The ssdf leader is Fritz7 and not tiger14. > >Uri Yes, I know and to you know what I say to that - that's very interesting, but it doesn't necessarily mean it's the best program in the world. Let's look at the SSDF rating list. It's a list based on ALL computer programs with no HUMANS. It would seem to me that we should include all human players in their little universe to have a more accuarte result. Let's examine the list as published here: http://w1.859.telia.com/~u85924109/ssdf/list.htm Do you understand what the numbers mean underneath the little plus and minus sign. The +33 For Fritz, the -32 for Tiger. Those are the plus minus scores for the ratings. The ratings are a statistical calculation with a confidence factor. For example, Fritz has a statistical rating of 2730 and there is a 95% confidence level that the true rating for Fritz will fall between 2699 and 2763. Implicit in that statement is that there is a 5% confidence level that Fritz will fall below or above that range - and the answer is that we really don't know what the true rating for Fritz - it's just an educated guess. Tiger abnd Gambit are 8 points below Fritz - but their statistical range overlaps with Fritz and the 8 point differnce would be considered as insigificant by most staticians - they would not be able to say with 95% confidence that Fritz is better than Tiger. Factor that in with the fact that their universe is missing the ENTIRE human race, it is even less reliable. Thus the call to identify the best computer program in the world becomes a judgement call - and in my opinion based on results that Tiger has obtained in top HUMAN tournamnets - it is the best widely available computer chess program in the world. Here are some computer vs human results that you may find interesting: http://www.rebel.nl/resu.htm
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