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・ Kenneth Ohlsson
・ Kenneth Olayombo
・ Kenneth Oliver
・ Kenneth Olwig
・ Kenneth Omeruo
・ Kenneth Oppel
・ Kenneth Oram
・ Kenneth Ormsby
・ Kenneth Osborne, Lord Osborne
・ Kenneth Osterberger
・ Kenneth Ouriel
・ Kenneth Oxford
・ Kenneth Ozmon
・ Kenneth P. Bergquist (Department of Defense)
・ Kenneth P. Bergquist (United States Air Force)
Kenneth Massey
・ Kenneth Mather
・ Kenneth Mathews
・ Kenneth Mathews (cricketer)
・ Kenneth Matiba
・ Kenneth Mattox
・ Kenneth Maxwell
・ Kenneth Mayhew
・ Kenneth Mburu Mungara
・ Kenneth McAlpine
・ Kenneth McAlpine (cricketer)
・ Kenneth McArthur
・ Kenneth McClintock
・ Kenneth McDuff
・ Kenneth McFarland


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Kenneth Massey : ウィキペディア英語版
Kenneth Massey

Kenneth Massey is an American sports statistician known for his development of a methodology for ranking and rating sports teams in a variety of sports. His ratings have been a part of the Bowl Championship Series since the 1999 season. He is an assistant professor of mathematics at Carson–Newman University in Tennessee.〔(【引用サイトリンク】title=Directory: Kenneth Massey )
== Methods ==
Massey, unlike the developers of other sports rating systems, gives quite a lot of information on how his system works, but omits enough details to prevent someone from copying the calculations in their entirety. The Massey Ratings are designed to measure past performance, not necessarily to predict future outcomes. The first challenge for any computer rating system is to account for the variability in performance. A team will not always play up to its full potential. Other random factors (officiating, bounce of the ball) may also affect the outcome of a game. The model must somehow eliminate the "noise" which obscures the true strength of a team. The second goal is to account for the differences in schedule. When there is a large disparity in schedule strength, win-loss records lose their significance. The model must evaluate games involving mismatched opponents, as well as contests between well matched teams. It is necessary to achieve a reasonable balance between rewarding teams for wins, convincing wins, and playing a tough schedule. This issue is difficult to resolve, and rating systems exist that are based on each of the extremes.The overall team rating is a merit based quantity, and is the result of applying a Bayesian win-loss correction to the power rating. Only the score, venue, and date of each game are used to calculate the Massey ratings. Stats such as rushing yards, rebounds, or field-goal percentage are not included. Nor are game conditions such as weather, crowd noise, day/night, or grass/artificial turf. Overtime games are not treated any differently. Finally, neither injuries nor psychological factors like motivation are considered.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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