基于数据挖掘的排球运动员身体素质评价模型
2017-06-12杨宋华
杨宋华
摘 要: 塑造基于数据挖掘的排球运动员身体素质评价模型,通过数理统计法挖掘出排球运动员包含的五大身体素质结构特征,依据该五大身体素质特征,获取排球运动员身体素质代表指标。基于不同指标的身体素质代表指标的素质因子旋转后的特征值,与不同因子旋转后的总特征值的比值可得到运动员身体素质因子代表指标的权重系数。基于该权重系数可获取基于数据挖掘的排球运动员身体素质评价模型,并采用该模型对运动员的训练、比赛以及身体素质进行有效的评价。采用因子分析对设计的基于数据挖掘的排球运动员身体素质评价模型进行检验,结果显示该评价模型是可靠的。
关键词: 数据挖掘; 身体素质; 评价模型; 权重系数
中图分类号: TN911.1?34; G807.4 文献标识码: A 文章编号: 1004?373X(2017)11?0119?04
Data mining based physical quality evaluation model for volleyball athletes
YANG Songhua
(Institute of Physical Education, Nantong University, Nantong 226019, China)
Abstract: The data mining based physical quality evaluation model for volleyball athletes is established. The five structure features of the volleyball athletes physical quality are mined with the mathematical statistics. According to the five physical quality features, the representative indicators of the volleyball athletes physical quality is acquired. On the basis of the ratio of the rotated characteristic value of the quality factor representing the physical quality of different indicators to the rotated total characteristic value of different factors, the weight coefficient of the representative indicator of the athletes physical quality factor is obtained. On the basis of the weight coefficient, the volleyball athletes physical quality evaluation model based on data mining is acquired. The model is used to train the athletes, and evaluate the game and physical quality effectively. The factor analysis is adopted to test the designed volleyball athletes physical quality evaluation model based on data mining. The test results show that the evaluation model is reliable.
Keywords: data mining; physical quality; evaluation model; weight coefficient
0 引 言
当前的排球领域竞争激烈,从以往将技术和战术当成训练目标,发展成专注运动员身体素质的目标。增强排球运动员的身体素质是提升排球成绩的关键[1]。因此,应科学塑造排球运动员身体素质的评价模型,对运动员身体塑造进行合理训练[2],增强运动员的排球技能。
为了科学分析排球运动员的身体素质结构,进行正确的训练,增强排球运动能力,提出基于数据挖掘的排球运动员身体素质评价模型,并通过实验验证模型的有效性。
1 研究对象与方法
1.1 研究对象
本文从2013—2014以及2014—2015兩个赛季中中国大学生排球联赛期间不同队伍中采集2名男运动员,一共60名运动员,当成研究对象。……
