决策树算法在智能导学评价子系统中的应用  

Application of Exploring Decision Trees in Evaluation Subsystem in Intelligent Guidance System

作　　者：傅傑[1] 李雯[1] 

机构地区：[1]江西理工大学信息工程学院

出　　处：《计算机与现代化》2009年第8期1-3,6,共4页Computer and Modernization

基　　金：江西省教育厅科学技术研究资助项目(GJJ08285)

摘　　要：介绍智能导学系统的特点,并对决策树C4.5算法的原理进行了阐述,通过C4.5构造了一个学生在线学习效果的评估模型。并利用该模型得到的分类规则进行预测,得到准确性评估表,从而验证决策树算法的灵活性和计算的高效性。This paper presents the characters of intelligent guidance system, and describes the principles of C4.5 algorithm of ex- ploring decision trees, builds a model which is used to evaluate the effeet of students＇ study on line. Using classify rules from the mode/s, the system predicts, some data and a form of accuracy evaluation are given which empirically shows to be more efficieney in computational efficiency and more flexibility in algorithm.

关 键 词：智能导学 决策树 C4.5算法 数据挖掘 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]