用正负模型估计美式橄榄球球员的价值

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2021-08-27 DOI:10.1515/jqas-2020-0033

R. Sabin

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Augmenting Adjusted Plus-Minus in Soccer with Fifa Ratings. arXiv preprint arXiv:1810.08032). These models are useful in coming up with results-oriented estimation of each player’s value. In American football, many positions such as offensive lineman have no recorded statistics which hinders the ability to estimate a player’s value. I provide a fully hierarchical Bayesian plus–minus (HBPM) model framework that extends RAPM to include position-specific penalization that solves many of the shortcomings of APM and RAPM models in American football. Cross-validated results show the HBPM to be more predictive out of sample than RAPM or APM models. 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引用次数: 3

摘要

摘要足球运动员场上表现价值的计算一直局限于球探方法，而数据驱动方法大多局限于四分卫。在其他运动中，计算球员价值的常用方法是调整正负(APM)和正则化调整正负(RAPM)模型。这些模型也被用于其他运动，最著名的是篮球(Rosenbaum, D. T. 2004)。衡量NBA球员如何帮助他们的球队获胜。http://www.82games.com/comm30.htm _ftn1;J. Kubatko, D. Oliver, K. Pelton和D. T. Rosenbaum. 2007。《篮球统计分析的起点》体育定量分析杂志3 (3);温斯顿，W. 2009。NBA中的球员和阵容分析。马萨诸塞州剑桥;刘志强，2010。“改进NBA调整+/−使用正则化和样本外测试。”在2010年麻省理工学院斯隆体育分析会议的论文集中)，通过计算同时参加比赛的球员来估计每个球员的价值。足球由于得分事件少，阵容变化少，定位受限，比赛数量相对于球队数量较少，因此不太适合APM模型。最近的方法已经找到了将正负模型纳入其他运动(如曲棍球)的方法(Macdonald, B. 2011)。“基于回归的NHL球员调整正负统计。”体育定量分析杂志7(3))和足球(舒尔茨，S. R.和c.m。Wellbrock》2018。“足球运动员个人表现的加权正负指标。”体育分析杂志4(2):121-31和Matano, F.， L. F. Richardson, T. Pospisil, C. Eubanks, J. Qin(2018)。扩大调整正负在足球与国际足联评级。arXiv:1810.08032)。这些模型有助于以结果为导向估算每个玩家的价值。在美式足球中，许多位置，如进攻线卫，没有记录的数据，这阻碍了人们对球员价值的估计。我提供了一个完全分层的贝叶斯加减(HBPM)模型框架，它将RAPM扩展到包括特定位置的惩罚，从而解决了美式橄榄球中APM和RAPM模型的许多缺点。交叉验证的结果表明，HBPM在样本外比RAPM或APM模型更具预测性。HBPM模型的结果提供了大学和NFL橄榄球运动员以及更深入的位置价值和位置特定年龄曲线的见解。

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Estimating player value in American football using plus–minus models

Abstract Calculating the value of football player’s on-field performance has been limited to scouting methods while data-driven methods are mostly limited to quarterbacks. A popular method to calculate player value in other sports are Adjusted Plus–Minus (APM) and Regularized Adjusted Plus–Minus (RAPM) models. These models have been used in other sports, most notably basketball (Rosenbaum, D. T. 2004. Measuring How NBA Players Help Their Teams Win. http://www.82games.com/comm30.htm#_ftn1; Kubatko, J., D. Oliver, K. Pelton, and D. T. Rosenbaum. 2007. “A Starting Point for Analyzing Basketball Statistics.” Journal of Quantitative Analysis in Sports 3 (3); Winston, W. 2009. Player and Lineup Analysis in the NBA. Cambridge, Massachusetts; Sill, J. 2010. “Improved NBA Adjusted +/− Using Regularization and Out-Of-Sample Testing.” In Proceedings of the 2010 MIT Sloan Sports Analytics Conference) to estimate each player’s value by accounting for those in the game at the same time. Football is less amenable to APM models due to its few scoring events, few lineup changes, restrictive positioning, and small quantity of games relative to the number of teams. More recent methods have found ways to incorporate plus–minus models in other sports such as Hockey (Macdonald, B. 2011. “A Regression-Based Adjusted Plus-Minus Statistic for NHL players.” Journal of Quantitative Analysis in Sports 7 (3)) and Soccer (Schultze, S. R., and C.-M. Wellbrock. 2018. “A Weighted Plus/Minus Metric for Individual Soccer Player Performance.” Journal of Sports Analytics 4 (2): 121–31 and Matano, F., L. F. Richardson, T. Pospisil, C. Eubanks, and J. Qin (2018). Augmenting Adjusted Plus-Minus in Soccer with Fifa Ratings. arXiv preprint arXiv:1810.08032). These models are useful in coming up with results-oriented estimation of each player’s value. In American football, many positions such as offensive lineman have no recorded statistics which hinders the ability to estimate a player’s value. I provide a fully hierarchical Bayesian plus–minus (HBPM) model framework that extends RAPM to include position-specific penalization that solves many of the shortcomings of APM and RAPM models in American football. Cross-validated results show the HBPM to be more predictive out of sample than RAPM or APM models. Results for the HBPM models are provided for both Collegiate and NFL football players as well as deeper insights into positional value and position-specific age curves.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.