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作 者:许坚[1] 周勇[2] 廖书雷 薛子琦 XU Jian;ZHOU Yong;MIAO Shu-lei;XUE Zi-qi(China Academy of Art, Hangzhou 310009, China;School of Physical Education, Hangzhou Novmal University, Hangzhou 311121, China)
机构地区:[1]中国美术学院体育部,浙江杭州310009 [2]杭州师范大学体育与健康学院,浙江杭州311121
出 处:《浙江体育科学》2021年第6期86-92,共7页Zhejiang Sport Science
基 金:浙江省学校体育协会高等体育教育课题项目(zgtx202002)。
摘 要:国内对于篮球比赛中运动员临场表现的评价,通常只通过数据统计中记录的基础数据,对于运动员临场综合贡献的研究较为薄弱,尚未成体系。在此背景之下,为建立全面评价篮球运动员临场贡献的评价体系,利用因子分析法对评价指标进行分层,确定了进攻把握能力、攻防转换创造能力、进攻回合贡献能力、进攻侵略性和负面影响五个公共因子并对其进行释义;考虑到因子分析的计算步骤过于繁琐而造成的误差的增加,运用信息熵理论对各公因子所包含的评价指标进行权重的确定;最终建立球员贡献评价体系以及球员贡献值的计算公式:C_value=得分*0.02731+投篮出手数*0.04785+投篮命中数*0.02822+三分出手数*0.08225+三分命中数*0.07872+罚球出手数*0.06004+罚球命中数*0.05682+助攻*0.05513+防守篮板*0.07319+进攻篮板*0.06383+抢断*0.07204+盖帽*0.11453+被侵*0.06-失误*0.07809-犯规*0.09030。为国内球员的临场贡献评价提供参考,也为数据统计的完善夯实基础。The domestic evaluation of players,on-the-spot performance in basketball games usually only uses the basic data recorded in statistics.Research on the players,total contributions on the spot is relatively weak and has not yet formed a system.In this context,in order to establish an evaluation system for comprehensive evaluation of basketball players’on-the-spot contributions,factor analysis is used to layer the evaluation indicators to determine five public factors:the offensive grasp ability,offensive and defensive conversion creative ability,offensive round contribution ability,offensive aggressiveness and negative affect and explain them;considering the increase in errors caused by the too cumbersome calculation steps of factor analysis,the information entropy theory is used to determine the weight of the evaluation indicators contained in each public factor;finally the player contribution evaluation system is established and the calculation formula of player contribution value:C_value=score*0.02731+number of shots*0.04785+number of shots*0.02822+number of three-pointers*0.08225+number of three-pointers*0.07872+number of free throws*0.06004+free throws Hits*0.05682+assists*0.05513+defensive rebounds*0.07319+offensive rebounds*0.06383+steals*0.07204+blocks*0.11453+invaded*0.06-turnovers*0.07809-fouls*0.09030.It provides a reference for evaluating domestic players'on-the-spot contribution and lays a solid foundation for the improvement of data statistics.
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