Author: Sune Fischer
Date: 12:03:38 07/13/03
Go up one level in this thread
On July 13, 2003 at 12:42:19, Robert Hyatt wrote: > >I (and many others) believe that the Elo system works well for players >that are pretty close in rating. It seems to work less well (in the case >of computers) for players that are significantly separated in ratings. I agree mostly, not sure why it should be different for computers though. >Starting at the top eliminates the bottom of the pool from the "war". If >the bottom can't drop, then neither can the players at the top. So you get a >new top. If you start the new (and strong) program at the bottom, he will >drop _everybody_ as he goes up, and it would seem that this would result in >the new player going to the right "differential" spot but that it might be >lower than it would have been with a high start. As we just agreed it is a bad idea to play matches with a big Elo difference, so I don't understand why you think it is a good idea now? There is no need for everyone to play everyone for the system to work. What is required is for one single entry to be able to *affect* the ratings in the entire pool, but head to head matches against all is not the only way to do this. For instance you don't see Kasparov beating up a lot of FMs, that doesn't mean his rating is wrong or that the FIDE scale is broken. As a matter of fact it would probably be broken if he did, because the formula is less accurate in these cases, as we started out agreeing on. -S.
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