Network centrality and core-periphery analysis to clarify the tactics for TRY in Rugby World Cup 2019
Network centrality and core-periphery analysis to clarify the tactics for TRY in Rugby World Cup 2019
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网络中心性和核心-边缘分析阐明 TRY 在 2019 年橄榄球世界杯中的战术
DOI：
10.11648/j.ajss.20210901.12
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Ichiro Kono
中科院分区：
文献类型：
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作者：
5.Koh Sasaki;Takumi Yamamoto;Ichiro Watanabe;Mitsuyuki Nakayama;Kensuke Iwabuchi;Takashi Katsuta;Ichiro Kono
在1987年第一届世界杯之后，橄榄球经历了旨在更有活力的比赛的规则修订。到目前为止，已经有一些KPI（关键绩效指标）的分析，但没有太多的详细动态网络结构的战术与选定的进攻和防守领域，发挥，和人力资源。采用网络中心性、核心-外围分析和对应分析等方法对2019年橄榄球世界杯的试球战术进行研究。采用Bootstrap检验和ROC分析对尝试贡献结构的数据进行验证。进入决赛的8支球队的尝试平衡平均得分为3.94分，未获胜球队的平均得分为-2.23分。我们将这些指标归类为团队绩效，并使用自举假设检验对Monte Carlo方法进行测试，以评估标准化值。此外，为了测试标准化尝试平衡值的灵敏度和特异性的精确度，执行受试者-操作者曲线（ROC）分析的曲线下面积（AUC）。在最后8个阶段，分析了前20分钟和后20分钟试训战术的特点。结果表明，在前20分钟应采取“进攻渠道多样化”的战术，在后20分钟应采取“防守和替补多样化”的战术。此外，网络对应分析的前4名球队在比赛中的表现得到了有趣的结果，关于进攻和防守方法的战术，和人力资源的过渡。
After the first World Cup 1987, rugby undergoes rule revisions aimed at more dynamic games. There have been some analyses of the KPIs (Key Performance Indicators) so far, but not many ones as detailed dynamic network structure of tactics concerned with selected attack and defense areas, plays, and human resources. In current study, the tactics for try in Rugby World Cup 2019 was investigated by network centrality, core-periphery analysis and correspondence analysis. Bootstrap test and ROC analysis were used to validate the data of try contribution structure. The average score of try balance of final 8 teams was “3.94” and that of “not win” teams was “-2.23”. We categorized these indices into team performance, and tested Monte Carlo methods with bootstrap hypothesis testing to assess the standardized values. Furthermore, to test the precision of sensitivity and specificity of standardized try balance values, the Area Under the Curve (AUC) of the receiver–operator curve (ROC) analysis was executed. In final 8 stage, the feature of tactics for try in first 20 minutes and last 20 minutes were analyzed. The results suggested the tactics of “attack channel diversity” in first 20 minutes and tactics of “defense and substitute diversity” in last 20 minutes. In addition, network correspondence analysis of the top 4 teams’ performance in the tournament yielded interesting results regarding tactics of the attack and defense methods, and of the transition of human resources.