Author: GuyHaworth
Date: 01:52:40 10/09/02
Go up one level in this thread
Totally agreed: only the differences between the ELO numbers are relevant. I believe there is an inflation effect in the ELO system. Sadly, investigating this - by theory or simulation - hasn't got to the top of my 'to do' list yet. Anyway, the more games played, the narrower the confidence bands on ELO figures, but the greater the inflation. I believe it was for this reason, or for the sake of credibility, that SSDF knocked back the absolute numbers a couple of years ago. Maybe they knocked 100 points off or something? Other rating systems, like Thompson's for the PCA, maybe do the rating better with less inflation, but they haven't been widely adopted. Perhaps that's a pity. g
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