计算机工程与应用 ›› 2008, Vol. 44 ›› Issue (10): 244-245.

• 工程与应用 • 上一篇    下一篇

C4.5算法在冠状造影数据处理中的应用

云玉屏,林克正   

  1. 哈尔滨理工大学 计算机科学与技术学院,哈尔滨 150080
  • 收稿日期:2007-06-28 修回日期:2007-09-17 出版日期:2008-04-01 发布日期:2008-04-01
  • 通讯作者: 云玉屏

Application of C4.5 algorithm in data processing of CAG

YUN Yu-ping,LIN Ke-zheng   

  1. College of Computer Science and Technology,Harbin University of Science and Technology,Harbin 150080,China
  • Received:2007-06-28 Revised:2007-09-17 Online:2008-04-01 Published:2008-04-01
  • Contact: YUN Yu-ping

摘要: 首先采用数据清理、数据变换、数据规约等预处理技术处理原始数据,并借助weka平台,通过C4.5算法生成决策树;然后针对决策树对正确率判断不够理想的地方,调整比例因子变量再进行测试提高判断的正确率。由两种方法的比较,以及与医学认识相对照,可以得出,文中所得决策分类树的构成特点同目前已知的高危因素趋于一致。通过C4.5算法建立判定决策树,降低了冠状动脉造影(CAG)的危险,为冠心病的分析预测提出了一种新的方法。

关键词: 冠状动脉造影, 数据挖掘, C4.5算法

Abstract: Firstly,we process the original data through data cleaning,data transform and data protocol.And generate the decision tree by using algorithm of C4.5 under weka platform.Then adjust the ratio factor variables to raise the veracity of judgment of the mothod.The results of experiment demonstrate the algorithm of C4.5 can reduce the risk of coronary angiography,and put forward a new mothod for coronary heart disease analysis and diagnoses.

Key words: coronary angiography, data mining, algorithm of C4.5