Le lundi 25 décembre 2006 00:46, Don Dailey a écrit : > > On Sun, 2006-12-24 at 13:54 -0800, David Fotland wrote: > > There is no fixed relationship between ELO and handicap stones. Stronger > > players have less variation in their play, so a handicap stone is worth more > > ELO points for a stronger player than a weaker player. > > What you say is consistent with what I've heard from other sources. > > My understanding is that in ELO terms the ranks are compressed at the > higher levels and spread out at lower levels. So there is less > difference between 4 dan and 5 dan than 15 kyu and 16 kyu for > instance. > > If I want to use ELO and also expect the handicaps to be fair, then > I will need to account for this curve.
Current KGS ranking seems very close to european ranking, so stats at http://gemma.ujf.cas.cz/~cieply/GO/statev.html can give usefull hint. GNU and other "strong" programs are in the range 10k-6k where the stats are rather regular, and rougly gives the follwowing winning percentage in even games (from more than 20000 games) R + 1 R + 2 R + 3 R + 4 win% 44 40 30 20 Equiv-ELO -43 -72 -149 -240 So a linear interpolation (even if it obviously not linear) gives approximately 50 ELO == 1 handi (for this range of strenght) > On the web I see that some ELO based GO servers assume 100 ELO is 1 > rank, and do exactly what I proposed, when they handicap they fold > this into the ELO rating of the players for rating purposes. So taking 100 ELO for 1 k difference seems to be a good first guess, and gives slightly less handi than needed (this is good idea), and currently no one knows how bot ranking will look like ... Alain _______________________________________________ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/
