Ray Gordon, creator of the "pivot" wrote:
> The Elo system is not perfect, and requires further adjustment in any
> individual form of competition. For example, in basketball, K has to be
> scaled so that the ratings can generate pointspreads, and one must use
> "replays" or re-rating the past month or so, with caps, to account for
teams
> who suddenly improve or decline, as the system is too slow to catch it.
>
> The problem with Elo and chess is that chess knowledge is not fixed, so
a
> zero-sum system makes no sense. The "expanding rating universe" you see
> with the methods used is actually more accurate.
>
>
The Elo system is not zero-sum.
--
Kenneth Sloan KennethRSloan@[EMAIL PROTECTED]
and Information Sciences +1-205-932-2213
University of Alabama at Birmingham FAX +1-205-934-5473
Birmingham, AL 35294-1170 http://KennethRSloan.com/
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