Journal of Quantitative Analysis in Sports最新文献_第2页

Estimating positional plus-minus in the NBA 估算 NBA 的位置正负值

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Journal of Quantitative Analysis in Sports Pub Date : 2024-04-25 DOI: 10.1515/jqas-2022-0120

Hua Gong, Su Chen

引用次数: 1

No cheering in the background? Individual performance in professional darts during COVID-19 背景中没有欢呼声？COVID-19 期间职业飞镖的个人表现

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Journal of Quantitative Analysis in Sports Pub Date : 2024-04-15 DOI: 10.1515/jqas-2022-0036

Finn Spilker, Marius Ötting

引用次数: 0

Career path clustering of elite soccer players among European Big-5 nations utilizing Dynamic Time Warping 利用动态时间扭曲对欧洲五大联赛国家精英足球运动员的职业道路进行分类

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Journal of Quantitative Analysis in Sports Pub Date : 2024-04-04 DOI: 10.1515/jqas-2023-0080

Viktor Wolf, Ralf Lanwehr, Marcel Bieschke, Daniel Leyhr

{"title":"Career path clustering of elite soccer players among European Big-5 nations utilizing Dynamic Time Warping","authors":"Viktor Wolf, Ralf Lanwehr, Marcel Bieschke, Daniel Leyhr","doi":"10.1515/jqas-2023-0080","DOIUrl":"https://doi.org/10.1515/jqas-2023-0080","url":null,"abstract":"Prior clustering approaches of soccer players have employed a variety of methods based on various data categories, but none of them have focused on clustering by career paths characterized through a time series analysis of yearly performance quality. Therefore, this study aims to propose a methodology how a career path can be represented as a time series of a player’s seasonal qualities and then be clustered with players that have a similar career path. The underlying data focuses on soccer players from the five largest European soccer nations (Big-5). This allows for the identification of different types of career paths of players and the investigation of significant disparities between career paths among the Big-5 nations. In line with our proposed methodological approach, we identified and interpreted 13 different clusters of player career paths. These range from the cluster with the highest player quality scores to the pattern comprising players with the weakest scores. Further, the detected clusters show significant differences regarding variables of soccer players’ early career phase in adolescence (e.g., age of debut in professional soccer, years spent in a youth academy). The presented approach might represent a first step for stakeholders in soccer to get an objective insight in players’ career by utilizing mainly freely available data sources.","PeriodicalId":16925,"journal":{"name":"Journal of Quantitative Analysis in Sports","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140582579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spatial roles in hockey special teams 冰球特别小组的空间作用

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Journal of Quantitative Analysis in Sports Pub Date : 2024-04-04 DOI: 10.1515/jqas-2023-0019

Jonathan Arsenault, Margaret Cunniff, Eric Tulsky, James Richard Forbes

{"title":"Spatial roles in hockey special teams","authors":"Jonathan Arsenault, Margaret Cunniff, Eric Tulsky, James Richard Forbes","doi":"10.1515/jqas-2023-0019","DOIUrl":"https://doi.org/10.1515/jqas-2023-0019","url":null,"abstract":"Special teams (i.e. power play and penalty kill) situations play an outsized role in determining the outcome of ice hockey games. Yet, quantitative methods for characterizing special teams tactics are limited. This work focuses on team structure and player deployment during in-zone special teams possessions. Leveraging player and puck tracking data from the National Hockey League (NHL), a framework is developed for describing player positioning during 5-on-4 power play and 4-on-5 penalty kill possessions. More specifically, player roles are defined directly from the player tracking data using non-negative matrix factorization, and every player is allocated a unique role at every frame of tracking data by solving a linear assignment problem. Team formations naturally arise through the combination of roles occupied in a frame. Roles that vary on a per-frame basis allow for a fine-grained analysis of team structure. This property of the roles-based representation is used to group together similar power play possessions using latent Dirichlet allocation, a topic modelling technique. The concept of assignments, which remain constant over an entire possession, is also introduced. Assignments provide a more stable measure of player positioning, which may be preferable when assessing deployment over longer periods of time.","PeriodicalId":16925,"journal":{"name":"Journal of Quantitative Analysis in Sports","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140582583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The strategic jump-the order effect on winning “The Final Three” in long jump competitions 战略性跳跃--在跳远比赛中赢得 "最后三名 "的顺序效应

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Journal of Quantitative Analysis in Sports Pub Date : 2024-02-20 DOI: 10.1515/jqas-2022-0028

Niklas Karlsson, Anders Lunander

{"title":"The strategic jump-the order effect on winning “The Final Three” in long jump competitions","authors":"Niklas Karlsson, Anders Lunander","doi":"10.1515/jqas-2022-0028","DOIUrl":"https://doi.org/10.1515/jqas-2022-0028","url":null,"abstract":"The tournament rules for long jump competitions have changed in recent years. Today, only the three athletes with the best jumps from the five initial attempts are qualified to make an additional sixth jump – a format called The Final Three. In the first implemented version of The Final Three, the top athletes sequentially make one final jump, starting with the athlete ranked third place from the initial attempts. The athlete with the longest jump in this sixth attempt wins the competition, irrespective of achieved results in previous attempts. In this study, we analyze the effect of the athletes’ jump order on the probability of winning the competition within this first implemented version of The Final Three. We derive the final’s symmetric subgame perfect equilibrium and compute the corresponding equilibrium winning probabilities, given estimated distributional parameters from the Olympic long jumping final in Tokyo 2021. The modeling of the game is preceded by a development of a stochastic model for the outcome in long jumping. Our results indicate a last mover advantage, albeit small. Our model also reveals the importance of having a low variation in the approach run length and thinking strategically in this tournament format.","PeriodicalId":16925,"journal":{"name":"Journal of Quantitative Analysis in Sports","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139928138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Estimating age-dependent performance in paired comparisons competitions: application to snooker 估算成对比较竞赛中与年龄有关的成绩：斯诺克的应用

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Journal of Quantitative Analysis in Sports Pub Date : 2024-02-01 DOI: 10.1515/jqas-2023-0082

Rose D. Baker, Ian G. McHale

引用次数: 0

Opponent choice in tournaments: winning and shirking 比赛中对手的选择：获胜与逃避

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Journal of Quantitative Analysis in Sports Pub Date : 2024-01-19 DOI: 10.1515/jqas-2023-0030

Nicholas G. Hall, Zhixin Liu

{"title":"Opponent choice in tournaments: winning and shirking","authors":"Nicholas G. Hall, Zhixin Liu","doi":"10.1515/jqas-2023-0030","DOIUrl":"https://doi.org/10.1515/jqas-2023-0030","url":null,"abstract":"We propose an alternative design for tournaments that use a preliminary stage, followed by several rounds of single elimination play. The conventional “bracket” design of these tournaments suffers from several deficiencies. Specifically, various reasonable performance criteria for the tournament are not satisfied, there is an unnecessary element of luck in the matchups of players, and there are situations where players have an incentive to shirk. To address all these issues, we allow higher ranked players at the single elimination stage to choose their next opponent sequentially at each round. We allow each player’s ranking either to remain static, or to improve by beating a higher ranked player (Guyon, J. 2022. “Choose your opponent”: a new knockout design for hybrid tournaments. J. Sports Anal. 8: 9–29). Using data from 2215 men’s professional tennis tournaments from 1991 to 2017, we demonstrate the reasonableness of the results obtained. We also perform sensitivity analysis for the effect of increasing irregularity in the pairwise win probability matrix on three traditional performance measures. Finally, we consider strategic shirking behavior at both the individual and group levels, and show how our opponent choice design can mitigate such behavior. Overall, the opponent choice design provides higher probabilities that the best player wins and also that the two best players meet, and reduces shirking, compared to the conventional bracket design.","PeriodicalId":16925,"journal":{"name":"Journal of Quantitative Analysis in Sports","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139515811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improving ranking quality and fairness in Swiss-system chess tournaments 提高瑞士系统国际象棋比赛的排名质量和公平性

IF 0.8

Journal of Quantitative Analysis in Sports Pub Date : 2024-01-18 DOI: 10.1515/jqas-2022-0090

Pascal Sauer, Ágnes Cseh, Pascal Lenzner

引用次数: 0

Fair world para masters point system for swimming 公平的世界游泳大师积分系统

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Journal of Quantitative Analysis in Sports Pub Date : 2024-01-18 DOI: 10.1515/jqas-2023-0051

Christoph Bartneck, Elena Moltchanova

引用次数: 0

A multiplicative approach to decathlon scoring based on efficient frontiers 基于高效前沿的十项全能评分乘法

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Journal of Quantitative Analysis in Sports Pub Date : 2024-01-10 DOI: 10.1515/jqas-2022-0012

Manuel Schütz, Chris Tofallis

{"title":"A multiplicative approach to decathlon scoring based on efficient frontiers","authors":"Manuel Schütz, Chris Tofallis","doi":"10.1515/jqas-2022-0012","DOIUrl":"https://doi.org/10.1515/jqas-2022-0012","url":null,"abstract":"The decathlon consists of ten events with scores which are then aggregated to determine the final ranking. We develop a decathlon scoring method which is far simpler than the existing standard (IAAF1984) tables, as there are only 9 parameters instead of 30 which have an impact on the overall rank. We first identify athletes who are on the Pareto-efficient frontier i.e. those who are not dominated by anyone else. We then remove these frontier athletes and again pick all non-dominated athletes to obtain a second dominating group/Pareto frontier and iterate this procedure for the decathlon data from 1986 to 2020. Each of these groups are then characterized by their set of ten median performances. Improving from the last to the top group can then be seen as a path of progress, leading from the lowest to the highest set of median performances. Every event should have the same importance, so we normalize the data such that the path of progress follows as much as possible a space diagonal of a ten dimensional hypercube. Furthermore, any adjustment of a benchmark does not change any actual decathlon performance, hence there cannot be any unwanted rank reversals. This allows a smooth adjustment of these tables in the future, if for instance a new type of javelin needs to be introduced to reduce the range. We normalize such that current performances between 7000 and 9000 points still fall into the same range with our point tables.","PeriodicalId":16925,"journal":{"name":"Journal of Quantitative Analysis in Sports","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139420563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0