摘要
在多覆盖近似空间中研究多覆盖粗糙集模型的构造方法,根据两种不同策略,提出了多种乐观多覆盖粗糙集模型和悲观多覆盖粗糙集模型。分别从乐观多覆盖粗糙集模型间的关系、悲观多覆盖粗糙集模型间的关系、乐观多覆盖粗糙集模型和悲观多覆盖粗糙集模型间的关系这3个方面,对多覆盖粗糙集模型间的关系进行了深入研究,得到了各模型多覆盖近似集间的包含关系或等价关系。该研究为直接处理多覆盖近似空间提供了理论模型。
In the multi-covering approximation space, this paper presents a variety of optimistic multi-covering models and pessimistic multi-covering rough set models on two different strategies. After studying the relationships between multi-covering rough set models, the inclusion relations or equivalence relations are obtained. The research work is carried out from three aspects, which are the relationships among the optimistic multi-covering rough set models, the relationships among the pessimistic multi-covering rough set models, and the relationships among the optimistic and pessimistic multi-covering rough set models. It can provide a theoretical model to deal directly with the multi-covering approximate space.
出处
《计算机科学与探索》
CSCD
2014年第5期601-607,共7页
Journal of Frontiers of Computer Science and Technology
基金
国家自然科学基金No.61100116
江苏省自然科学基金No.BK2011492
江苏省高校自然科学基金No.11KJB520004
高维信息智能感知与系统教育部重点实验室开放基金~~
关键词
多覆盖近似空间
多粒度
粗糙集模型
multi-covering approximation space
multi-granulation
rough set model