Single Comment

Game Courier Ratings. Calculates ratings for players from Game Courier logs. Experimental.[All Comments] [Add Comment or Rating]

Roberto Lavieri wrote on Sun, Jan 8, 2006 01:28 PM UTC:

Fergus, please revise the 'DRAW EFFECT' in your algorithm, I suspect
there is a bug. 
Generally speaking, The method used IS NOT good, it is important the
rating of the contendor to make changes in the RATINGS after the game,
this is usual in Chess and other games. ELO is one of the best measures,
and it has proven to be really indicative, as it has been confirmed by
experience. You can see how, in some international tournaments, players of
different countries that have never played before against others in the
Tournament neither in the same other players environment or usual
contendors, can play more or less according to the forces indicated by ELO
rating. A good way to do it in our case can be assign, initially,
'preliminar ELO´s' according to the results in POINTS over NUMBER OF
GAMES, using any reasonable function. After that, use ELO method over the
history of the last 365 days, and it can be PONDERED by a factor, say 0.5,
if the game is NOT a Tournament game. In this way, we can obtain a more
reasonable measure. My Chess ELO has oscilated, over my past 20 years
history, between 1800 and 1950. I don´t expect this is necessarily my
rating in different CV´s, but I doubt it sounds reasonable enormous
deviations from these values, and if you observe my results against some
players better ranked with your method, you can think that something may
be wrong, and by these reasons I have some reasonable doubts about the
method used and its goodness for the purposes.