计算机与现代化 ›› 2009, Vol. 8 ›› Issue (8): 1-3,6.doi: 10.3969/j.issn.1006-2475.2009.08.001

• 算法分析与设计 •    下一篇

决策树算法在智能导学评价子系统中的应用

傅傑, 李雯

  

  1. 江西理工大学信息工程学院,江西 赣州 341000
  • 收稿日期:2009-03-09 修回日期:1900-01-01 出版日期:2009-08-21 发布日期:2009-08-21

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

FU Jie, LI Wen   

  1. School of Information Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
  • Received:2009-03-09 Revised:1900-01-01 Online:2009-08-21 Published:2009-08-21

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。

关键词: 智能导学, 决策树, C4.5算法, 数据挖掘

Abstract:

This paper presents the characters of intelligent guidance system, and describes the principles of C4.5 algorithm of exploring decision trees, builds a model which is used to evaluate the effect of students’ study on line. Using classify rules from the models, the system predicts, some data and a form of accuracy evaluation are given which empirically shows to be more efficiency in computational efficiency and more flexibility in algorithm.

Key words: intelligent guidance system, exploring decision trees, C4.5 algorithm, data mining

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