全文下载:2013030315
高慧, 姚炳学*
(聊城大学 数学科学学院, 山东 聊城 252059)
摘要: 通过已知覆盖生成的覆盖,对覆盖粗糙集模型进行了推广, 并引进了新的近似算子,讨论了上、下近似算子的性质。
关键词: 粗糙集; 覆盖; 近似算子
中图分类号: O 14 文献标志码: A
Generalization of Covering Based Rough Set Model
GAO Hui,YAOBing-xue
(School of Mathematical Sciences, Liaocheng University, Liaocheng 252059, China)
Abstract: This paper is devoted to the discussion of extended covering rough set models.Based on the notion of approximation operators,two pairs of covering approximation operators were defined with their properties being discussed.
Key words:rough set; covering; approximation operators
收稿日期:2012-09-25
基金项目: 国家自然科学基金项目(71140008) .
作者简介: 高慧(1986—), 女, 硕士研究生.*通信联系人.