elo rating system [Archive]

luxxio

Feb23-10, 07:06 AM

who can explain me the statistical details under the elo rating system? in particular why the expeted value rapresent the score of the game. thanx

zli034

Feb23-10, 06:52 PM

Good to know, Elo's assumption is based on normal distribution as well.
Details here:
http://en.wikipedia.org/wiki/Elo_rating_system

luxxio

Feb24-10, 03:54 AM

Good to know, Elo's assumption is based on normal distribution as well.
Details here:
http://en.wikipedia.org/wiki/Elo_rating_system

i know this reference. the question is why the expected value is compared with the score of a player. really i can't understand the logic behind this.

zli034

Feb24-10, 09:43 AM

if I have a score higher than the expectation of my performance, you can infer I'm doing better than my early plays. then I should gain higher rank.

luxxio

Feb25-10, 02:36 AM

if I have a score higher than the expectation of my performance, you can infer I'm doing better than my early plays. then I should gain higher rank.

yes i know this tale. the question is a little different. the expected score is the probability of win and half the probability of draw. and so question is why this probability is compared with the actual score?

zli034

Feb25-10, 07:56 AM

heuristic