覆盖粗糙集算子的性质及关系之注记  

Study on Degradation of Pesticide Residues in Vegetables and Fruits By Ozone

作　　者：夏秀云 常安成 刘一龙 

机构地区：[1]湖南信息学院公共课部,长沙410005

出　　处：《湖南工程学院学报（自然科学版）》2017年第3期43-46,共4页Journal of Hunan Institute of Engineering(Natural Science Edition)

基　　金：国家自然科学基金项目(60474022);湖南省教育厅科研资助项目(16C1118)

摘　　要：覆盖粗糙集是粗糙集的一种推广,也是为了刻画信息系统中具备不完备性与模糊性的信息.本文借助邻域,首先定义了几对覆盖粗糙集算子,然后根据定义研究了这几对覆盖粗糙上、下近似算子的性质及定理,并讨论这几对覆盖粗糙集算子的相关性,最后还讨论了这几对上、下近似算子对偶的等价条件.The covering rough sets theory is a generalization of traditional rough set theory,a scribes the information with incompleteness and fuzziness in information system. Firstly, we de operators on covering rough sets by epsilon neighborhood. Secondly, we discuss properties, th relations of those operators. Finally, we also get conditions of equivalence with dual of those o nd also de- fine several eorems and perators.

关 键 词：粗糙集 覆盖 近似算子 

分 类 号：O159[理学—数学]