HElo Rating System - dapucita/haxbotron GitHub Wiki

HElo Rating System

Haxbotron supports HElo Rating System for rate players by their game skill and stats.

HElo means Haxbotron Elo, that is adjusted version of Elo Rating.

Theoretical Basis

This adjusted formula essentially brought the idea from the way it is introduced in this document by Ryan Madden.

Nate Silver wrote an article in 2014 about using the Elo algorithm to rank the NFL teams, and his ideas improved the calculation of rating for team match.

So dapucita, the project manager of Haxbotron, inherited these ideas and adjusted the formula to fit the Haxball game.

Adjusted Formula

formula

ENGLISH

Suppose that it is a 4v4 team competition and that one team has player A, B, C, D, and the other team has player a, b, c, d.

Rating 'R' is rating value before the match is finished.

New Rating 'Rโ€ฒ' is rating value after the match.

Actual result 'S' for Player A against Player a will be 1 for a win, 0 for a loss, or 0.5 for a draw.

Expected result 'E' is the probability of Player A winning the game against Player a.

Scaling factor 'K' is a constant for decide significance of the match.

Margin of Victory Multiplier 'MoVM' is used as a scalar multiplier in the formula.

PD is the difference in the two playersโ€™ scoresโ”€goals, own goals, and passing success rates.

ELOW is the rating of the winning team.

ELOL is the rating of the losing team.

ํ•œ๊ตญ์–ด(KOREAN)

4๋Œ€4 ๊ฒฝ๊ธฐ์ด๋ฉฐ, ํ•œ ํŒ€์—๋Š” ํ”Œ๋ ˆ์ด์–ด A, B, C, D๊ฐ€ ์žˆ๊ณ  ๋‹ค๋ฅธ ํŒ€์—๋Š” ํ”Œ๋ ˆ์ด์–ด a, b, c, d๊ฐ€ ์žˆ๋‹ค๊ณ  ๊ฐ€์ •ํ•œ๋‹ค.

๋ ˆ์ดํŒ… ์ ์ˆ˜ R์€ ๊ฒฝ๊ธฐ ์ „์˜ ์ ์ˆ˜์ด๋‹ค.

์ƒˆ ๋ ˆ์ดํŒ… ์ ์ˆ˜ Rโ€ฒ์€ ๊ฒฝ๊ธฐ๊ฐ€ ๋๋‚œ ํ›„์˜ ์ƒˆ ์ ์ˆ˜์ด๋‹ค.

์‹ค์ œ๊ฒฝ๊ธฐ๊ฒฐ๊ณผ S๋Š” ํ”Œ๋ ˆ์ด์–ดA๊ฐ€ ํ”Œ๋ ˆ์ด์–ดa๋ฅผ ์ƒ๋Œ€๋กœ ๊ฑฐ๋‘” ๊ฒฝ๊ธฐ ๊ฒฐ๊ณผ์˜ ๊ฐ’์ด๋‹ค. ์Šน๋ฆฌ๋Š” 1, ํŒจ๋ฐฐ๋Š” 0, ๋ฌด์Šน๋ถ€๋Š” 0.5์ด๋‹ค.

๊ธฐ๋Œ€๊ฒฝ๊ธฐ๊ฒฐ๊ณผ E๋Š” ํ”Œ๋ ˆ์ด์–ด A๊ฐ€ ํ”Œ๋ ˆ์ด์–ด a๋ฅผ ์ƒ๋Œ€๋กœ ์Šน๋ฆฌํ•  ๊ฐ€๋Šฅ์„ฑ์˜ ๊ฐ’์ด๋‹ค.

ํ™˜์‚ฐ๊ณ„์ˆ˜ K๋Š” ๊ฒฝ๊ธฐ์˜ ์ค‘์š”๋„์— ๋”ฐ๋ฅธ ๊ฐ€์ค‘์น˜ ์—ญํ• ์„ ํ•˜๋Š” ์ƒ์ˆ˜์ด๋‹ค.

ํ•œ๊ณ„์Šน๋ฆฌ์Šน์ˆ˜ MoVM๋Š” ์‹์—์„œ ์Šค์นผ๋ผ ๊ณฑ์„ ์œ„ํ•œ ์Šน์ˆ˜๋กœ ์‚ฌ์šฉ๋œ๋‹ค.

PD๋Š” ๊ณจ, ์ž์ฑ…๊ณจ, ํŒจ์Šค์„ฑ๊ณต๋ฅ ๋กœ ์ธก์ •๋˜๋Š” ๋‘ ํ”Œ๋ ˆ์ด์–ด ๊ฐ„์˜ ๊ฒฝ๊ธฐ ์ ์ˆ˜์˜ ์ฐจ์ด๋‹ค.

ELOW๋Š” ๊ฒฝ๊ธฐ์—์„œ ์Šน๋ฆฌํ•œ ํŒ€์˜ ๋ ˆ์ดํŒ… ์ ์ˆ˜์ด๋‹ค.

ELOL๋Š” ๊ฒฝ๊ธฐ์—์„œ ํŒจ๋ฐฐํ•œ ํŒ€์˜ ๋ ˆ์ดํŒ… ์ ์ˆ˜์ด๋‹ค.

Other Features

You can decide whether to override players' avatar with their own tier.

See also: