改进的ID3算法及其在大学公共体育教学中的应用  

Improved ID3 Algorithm and Its Application in Public Physical Education for College Students

作　　者：王美芝[1] 赖建英 刘财辉[2] WANG Meizhi;LAI Jianying;LIU Caihui(School of Physical Education,Gannan Normal Uiveristy,Ganzhou 341000,China;School of Mathematics&Computer Sciences,Gannan Normal Uiveristy,Ganzhou 341000,China)

机构地区：[1]赣南师范大学体育学院,江西赣州341000 [2]赣南师范大学数学与计算机科学学院,江西赣州341000

出　　处：《赣南师范大学学报》2021年第6期68-73,共6页Journal of Gannan Normal University

基　　金：江西省体育局项目(2020004);国家自然科学基金项目(61663002);江西省自然科学基金项目(20202BAB202010)。

摘　　要：决策树算法是数据挖掘中的一种经典算法,常用的决策树算法有ID3算法、C4.5算法等.分析了ID3算法在应用中的优缺点,并对其进行了简单改进,即将复杂的计算公式转化为只含有加、减、乘、除的简单式子.在此基础上将其应用于大学公共体育教学质量评价中,找出了影响教师评价结果的重要因素,为科学评价教学提供了思路.Decision tree algorithm is a kind of classical algorithm in data mining.The commonly used decision tree algorithms include ID3 algorithm,C4.5 algorithm and so on.In this paper,we firstly analyzed the advantages and disadvantages of ID3 algorithm in applications,and then discussed a simple improvement of the algorithm,that is,the complicated calculation process is transformed into a simple formula containing only addition,subtraction,multiplication and division.Based on the improved version of ID3,we applied it to the evaluation of university public physical education teaching quality and figured out the important factors that affect the evaluation results of teachers.Those results may provide scientific evaluation methods for public physical education in universities.

关 键 词：决策树 ID3算法 教师评价 体育教学 

分 类 号：TP181[自动化与计算机技术—控制理论与控制工程]