计算机科学 ›› 2006, Vol. 33 ›› Issue (5): 241-243.

• • 上一篇    下一篇

决策树中数值型属性分裂的研究

刘友军 汪林林   

  1. 重庆邮电学院,重庆400065
  • 出版日期:2018-11-17 发布日期:2018-11-17

LIU You-Jun ,WANG Lin-Lin (Chongqing University of Posts and Teleeommunications, Chongqing400065)   

  • Online:2018-11-17 Published:2018-11-17

摘要: 在介绍了现有数值型属性分裂方法的基础上,引出了纯区间的概念,提出了一种基于纯区间归约的数值型属性分裂方法。该方法将属性值域用等宽直方图的方法划分为多个区间,对纯区间和非纯区间分别处理。理论分析和实验结果表明该方法在保证了分裂精度的同时,减小了搜索空间。

关键词: 决策树 数值型属性 纯区间归约 Gini指数

Abstract: This paper introduces methods about numeric attributes splitting and the concept of pure interval, propose a new splitting method based on pure intervals reduction. The method divides the numeric attributes to many intervals with equal-width histogram, us

Key words: Decision tree, Numeric attributes,Pure intervals reduction,Gini index

No related articles found!
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
No Suggested Reading articles found!