Performance Diagnosis of Elite Table Tennis Competition Based on Rough Set Theory
The problems of the diagnosis of table tennis technique lie in neglecting the relationships between skills and placements,and arriving isolated conclusions.The article rebuilds the technical performance indicator system through a combined analysis of technical behaviors and ball placements.The technical data of matches(225 competitions)is collected by Data Collection Software.The attribute reduction algorithm of rough sets is applied to get the reduction set of technical data,the result of which shows that the winning factors lie in each players individual strength,for instance,Ma Lin and Wang Liqins forehand attack,Wang Haos backhand,Bolls middle serve,Ryu Sheng mins chopping short,and Samsonovs forehand placement are major ways to get scores; Zhang Yinings defending,Wang Nans creating opportunities by good forehand techniques,Guo Yues high quality serve,Tie Yanas forehand flipping,Fukuhara Ais forehand attack,and Li Jiaweis backhand attack are all winning factors.To sum up,the new indicator system shows the relationship between technical behaviors and placements.The reduction method of rough sets finds minimal sets,which shares the same knowledge with the original data,forms the winning factors of table tennis competitions.
performance diagnosis rough set theory table tennis attributes reduction component
Jie Wang Qingyan Kong
School of Physical Education & Sports Training Shanghai University of Sport Shanghai,China Department of Computer Science Guilin University of Aerospace Technology Guilin,China
国际会议
厦门
英文
54-59
2014-08-19（万方平台首次上网日期，不代表论文的发表时间）