The Details of the TrueSkill™ Ranking System
Date: Wednesday, November 09 @ 11:29:44 UTC
Topic: Xbox Live
' Microsoft released a paper with information about the way that gamers will be ranked on the new Xbox Live '
"The TrueSkill ranking system is a skill-based ranking system designed to overcome the limitations of existing ranking systems, and to ensure that interesting matches can be reliably arranged within a league. It uses a technique called Bayesian inference for ranking players. Rather than assuming a single fixed skill for each player, the system characterises its belief using a bell-curve belief distribution (also referred to as Gaussian) which is uniquely described by its mean [mju:] ("peak point") and standard deviation [sigma] ("spread")."
There are graphics and charts to help with what appears to be a fairly complicated set of rules as examples.