Author: James T. Walker
Date: 08:21:30 05/13/02
Go up one level in this thread
On May 13, 2002 at 10:49:19, Uri Blass wrote:
>On May 13, 2002 at 10:25:46, David Dahlem wrote:
>
>>On May 13, 2002 at 09:25:20, Aloisio Ponti Lopes wrote:
>>
>>>I used the same database but got two different results using Fritz 7 and
>>>Elostat:
>>>
>>>Chessbase elo ("create initial elo list" from Fritz 7 database window):
>>>
>>>1 Chess Tiger 2696
>>>2 Fritz 2590
>>>3 Gandalf 2534
>>>4 SOS 2526
>>>5 Hiarcs 2521
>>>6 Nimzo 2486
>>>7 Shredder 2483
>>>8 Junior 2473
>>>9 Chessmaster 2457
>>>10 CSTal 2456
>>>11 AnMon 2453
>>>
>>>Elostat elo
>>>
>>>1 Fritz 2563
>>>2 Chess Tiger 2558
>>>3 Shredder 2486
>>>4 Hiarcs 2481
>>>5 Gandalf 2446
>>>6 Yace 2399
>>>7 SOS 2393
>>>8 Crafty 2393
>>>9 Chessmaster 2384
>>>10 Junior 2379
>>>11 Little Goliath 2338
>>>-----------------------------------------------------
>>>I guess the Elostat list is more accurate ? Why ?
>>>
>>>A. Ponti
>>
>>I thik Elostat is more accurate because it takes into account the rating of each
>>engines opponents.
>>
>>Regards
>>Dave
>
>I do not know which is more accurate but Elostat is not accurate and
>a program can lose rating based on it's calculations if it wins opponents that
>are 1000 elo weaker.
>
>Uri
Well I have mentioned here before that the Chessbase GUI is not correct in
calculating Elo points. As an example, today I just finished 14 games of Hiarcs
8 vs Crafty 18.13 at G/5 min. When I added these games to the blitz database
the GUI calculated Hiarcs 8 Elo as 23 points higher than Crafty 18.13 even
though the match was drawn (7-7). So Hiarcs 8 has only 14 games played in the
database yet it got a rating 23 points higher than the opponent it was even
with. Crafty 18.13 has over 140 games in this database. Also the Chessbase GUI
assumes an average elo of 2350 for any database it calculates. So of course
only the relative Elo's are even close but none are "accurate".
Jim
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