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TrueSkill 2: An improved Bayesian skill rating system

TrueSkill 2: An improved Bayesian skill rating systemTom MinkaMicrosoft ResearchRyan ClevenThe CoalitionYordan ZaykovMicrosoft ResearchMarch 22, 2018 AbstractOnline multiplayer games, such asGears of WarandHalo, use skill -based matchmakingto give players fair and enjoyable matches. They depend on a skill rating system to inferaccurate player skills from historical data. TrueSkill is a popular and effective skill ratingsystem, working from only the winner and loser of each game. This paper presents anextension to TrueSkill that incorporates additional information that is readily available inonline shooters, such as player experience, membership in a squad, the number of kills aplayer scored, tendency to quit, and skill in other game modes.

The skill rating of a player is an estimate of their ability to win the next match, based on the results of their previous matches. A typical match result lists the players involved, their ... automatic parameter estimation over a batch of historical data. TrueSkill2 operates in two modes: an online mode that only propagates skill ratings ...

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