信息系统中基于辨识度的属性约简算法研究

An Attribute Reduction Algorithm Based on Discernible Degree in Information System

在信息系统中,研究了属性集的分辨能力与可辨识对象对的关系,为有效描述属性集因属性变化而引起分辨能力的变化.文章定义了属性集的辨识度,归纳了其相关性质,并利用辨识度设计了一种新的属性约简算法,通过实例分析表明该算法能有效地求取约简,从而为信息系统的属性约简提供了一种新的研究方向.

In information system,this paper studies the relationship between the resolving power of attribute sets and discernible objects.In order to describe the change of attribute set＇s resolving power due to attributes change,discernible degree is defined and its related properties are given.Then,this paper designs a new attribute reduction algorithm based on discernible degree.This algorithm,which provides a new direction of attribute reduction in information system,can effectively acquire attribute reduction through example analysis.