计算机工程与应用 ›› 2011, Vol. 47 ›› Issue (14): 140-142.

• 数据库、信号与信息处理 • 上一篇    下一篇

随机信息系统属性相关性及在知识约简中的应用

周 彤l,张家录2   

  1. 1.湘南学院 计算机系,湖南 郴州 423000
    2.湘南学院 数学系,湖南 郴州 423000
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-05-11 发布日期:2011-05-11

Relativity of attributes in random information systems and its application to knowledge reduction

ZHOU Tong1,ZHANG Jialu2   

  1. 1.Department of Computers Science,Xiangnan University,Chenzhou,Hunan 423000,China
    2.Department of Mathematics,Xiangnan University,Chenzhou,Hunan 423000,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-05-11 Published:2011-05-11

摘要: 引入随机信息系统的属性的信息熵,利用属性的信息熵来刻画随机信息系统的属性之间的相关性。提出一种利用属性相关性来进行随机信息系统知识约简的方法并给出基于该方法进行知识约简的算法。

关键词: 随机信息系统, 相关性, 信息熵, 知识约简

Abstract: The information entropy of attributes is introduccd in random information systems.The relativity between two attribute subsets is depicted by means of information entropy.A method of knowledge reduction is proposcd using information entropy and an algorithm based on this method is given.

Key words: random information systems, information entropy, relativity, knowledge reduction