不完备信息系统下基于分辨度的属性约简算法  

An Attribute Reduction Algorithm Based on Discernibility in Incomplete Information Systems

作　　者：李长清[1] 张燕兰[2] 

机构地区：[1]闽南师范大学数学与统计学院,福建漳州363000 [2]闽南师范大学计算机学院,福建漳州363000

出　　处：《海南师范大学学报（自然科学版）》2015年第4期359-361,共3页Journal of Hainan Normal University（Natural Science）

基　　金：国家自然科学基金项目(11471153;11526109);福建省自然科学基金项目(2015J05011;2013J01029);福建省中青年教师教育科研基金项目(JA14200;JA13198);福建省省属高校专项计划资助项目(JK2014028)

摘　　要：针对不完备信息系统问题,引入容差关系下分辨度的概念,并由此提出一种基于分辨度的不完备信息系统属性约简算法,该算法更符合实际应用的需要.文章通过实例比较,证明该方法可行、有效.For incomplete information systems, the concept of discernibility under tolerance relation was introduced. Moreover, an attribute reduction algorithm in incomplete information systems based on discernibility was presented. Dependency relation between attributes can be known from the reduction gained by the algorithm. It is more suited to the needs of practical application. An example was used to illustrate that the algorithm was feasible and more effective through comparison.

关 键 词：不完备信息系统 容差关系 分辨度 属性约简 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程]