Author: James Robertson
Date: 16:38:33 04/13/00
Go up one level in this thread
On April 13, 2000 at 05:46:58, Graham Laight wrote:
>On April 12, 2000 at 21:51:01, James Robertson wrote:
>
>{snip}
>
>>I think that most of the older lower rated results _are_ accurate because the
>>list was calibrated using those results. But the results of the newer programs
>>whose ratings were _not_ calibrated against human lists show a remarkable
>>difference between their actual performances. Fritz is just the grossest example
>>of this, exhibiting a 232 point difference between its performance against
>>computers and its performance against humans.
>
>Unless Fritz's TPR rating is based on a larger scale test than the others, you
>can't really say this.
>
>I wouldn't expect most TPRs to closely match a player's real rating. The real
>surprise is that, after 8+ years since the "official" calibrations, so many of
>the TPRs are quite close to the SSDF rating - some of the even higher, indeed.
>
>If I were a lawyer out to prove that the SSDF ratings were inflated, I wouldn't
>draw attention to the statistics which Chris has put forward. I would
>strenuously avoid posting on this thread (like Bob has done! :-) ).
>
>-g
I see nothing incongruous between these statistics and my opinion that the SSDF
ratings that were not calibrated by play against humans are grossly overrated.
:)
James
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