摘要
研究决策表的正域约简及分配约简理论。针对具有自反性的广义不可区分关系,提出了决策表的正域约简及分配约简理论,借助区分函数给出了正域约简及分配约简的计算方法。对Skowron的区分条件进行了改进,在一定意义上为正域约简及分配约简提供了一般理论框架。
This paper is devoted to the discussion of positive region reduction and distribution reduction of decision tables.With respect to generalized indiscernibility relation,the approaches for positive region reduction and distribution reduction are presented by using discernibility functions.Skowron’s discernibility condition is improved.The approaches proposed in this paper provide a general framework for the reduction of decision table.
出处
《西华大学学报（自然科学版）》
CAS
2013年第4期1-4,36,共5页
Journal of Xihua University:Natural Science Edition
基金
国家自然科学基金(61175044
61175055)
中央高校基础研究基金(SWJTU11ZT29)
关键词
粗糙集
不可区分关系
正域约简
分配约简
rough set
indiscernibility relation
positive region reduction
distribution reduction
