| 决策树C4.5算法在成绩分析中的应用 |
| |
| 引用本文： | 王黎黎,刘学军.决策树C4.5算法在成绩分析中的应用[J].河南工程学院学报（自然科学版）,2014(4):69-73. |
| |
| 作者姓名： | 王黎黎 刘学军 |
| |
| 作者单位： | 南京航空航天大学 计算机科学与技术学院,江苏 南京,210016 |
| |
| 基金项目： | 南京航空航天大学2013年研究生教育教学改革研究项目 |
| |
| 摘 要： | 对学生的成绩进行分析并找出影响成绩的主要因素和规则,有利于科学指导学生的学习.介绍了一种以决策树C4.5算法为基础的学生成绩分析方法并以考研英语成绩分析为例,进行属性选择、构建数据集、数据预处理并建立模型,以提取影响考研英语成绩的主要因素和规则.实验表明,该模型有较好的交叉验证率和正确预测率,用此方法对学生成绩进行分析是合理的.
|
| 关 键 词： | 成绩分析 决策树 C4.5算法 影响因素 |
Application of C4 . 5 algorithm in analysis of students'performance |
| |
| WANG LiIi,LIU Xuejun.Application of C4 . 5 algorithm in analysis of students'performance[J].Journal of Hennan Institute of Engineering(Natural Science Edition),2014(4):69-73. |
| |
| Authors: | WANG LiIi LIU Xuejun |
| |
| Affiliation: | ( Computer Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China) |
| |
| Abstract: | Analyzing the performance of students and extracting influencing factors and rules are helpful for making scientific guidance for the students＇ learning. This paper describes an analysis method based on decision tree C4. 5 algorithm,and takes the analysis of students＇ English examination performance for example. After selecting attributes,building data sets,data preprocessing and model building,the influencing factors and rules are extracted. Experimental result shows that the model has a good cross-validation rate and correct prediction rate. And it shows that using this method to analyze the performance of students is reasonable. |
| |
| Keywords: | performance analysis decision tree C4 5 algorithm influencing factors |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
