Author: Robert Hyatt
Date: 18:39:42 07/24/00
Go up one level in this thread
On July 24, 2000 at 18:10:20, blass uri wrote: >On July 24, 2000 at 17:08:09, Robert Hyatt wrote: > >>On July 24, 2000 at 16:41:56, Chris Carson wrote: >> >>>On July 24, 2000 at 16:09:20, Harald Faber wrote: >>> >>>>DB 97 does only have 6 games and the ELO so far has nothing to do with SSDF-ELO. >>>>When will all of you guys start to keep that in mind? >>>>What about burning this equation in the miror: >>>> >>>> >>>>SSDF-ELO <> FIDE-ELO >>>> >>>> >>>>It is quite disappointing for me to see that still several people assume >>>>SSDF-ELO = FIDE-ELO. >>> >>>I do not recall this statement in my post. I did believe the relationship >>>some time ago, but changed my opinon as more data was revealed. >>> >>>I think the SSDF is looking into adjustments to make the two >>>rating systems more comparable, however, I am not sure it is >>>really a priority for them. >>> >>>Best Regards, >>>Chris Carson >> >> >>An adjustment is absolutely impossible. The only way to "adjust" the SSDF list >>is to take all the programs and play them in many human events, which would >>give each program a valid FIDE rating. But trying to take some programs and >>compute a FIDE rating, and then using SSDF numbers to try to figure out how >>far _all_ programs should be adjusted is simply bad statistics... >> >>May as well have a 100*random() tossed into _that_ formula... >> >>ratings between computers and computers, and between computers and humans don't >>seem to have a lot in common... > >They are not the same but they have a lot of common. >There is a positive correlation between results against humans and results >against computers. > >I am sure that if you take the first 10 programs in the ssdf and the last 10 >programs in the ssdf and give both to play against humans you are going to find >that the first 10 programs will be clearly better. > >There may be a difference but I believe that in almost all the cases if one >program is clearly better against computers(difference of more than 100 elo) it >is also better against humans. > >Uri Sure... but if you take the first 10 programs in the SSDF and get them into enough FIDE rated events, I believe that the order would change significantly. and that is bad enough for trying to extrapolate FIDE from SSDF and vice- versa... There are too many degrees of freedom to do a reasonable predictor... Hardware, good vs bad against humans, good vs bad against programs, book traps vs computers that fail against humans... etc...
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