摘要
从条件信息熵的角度出发,讨论了协调覆盖决策系统的相关性质以及属性约简方法,并用一实例验证此方法的有效性.
In this article,we propose a way to reduce the attribute of consistent covering decision system based on conditional information entropy.First,we define consistent covering decision system and its attribute reduction.Then,we use a discernibility matrix to design an algorithm that compute all the reducts of consistent covering decision system.We show the effectiveness by the experiment results.With the above discussion,have set up the definite foundation for reduction of covering rough sets for its further application.
出处
《河南大学学报（自然科学版）》
CAS
北大核心
2010年第4期406-410,共5页
Journal of Henan University:Natural Science
基金
国家自然科学基金(60474022)
关键词
覆盖粗糙集
属性约简
协调覆盖决策系统
条件信息熵
covering rough set
attribute reduction
consistent covering decision system
conditional information entropy
