Covering Rough Set Model Based On Multi-Granulations
RSFDGrC'11: Proceedings of the 13th international conference on Rough sets, fuzzy sets, data mining and granular computing（2011）
摘要
The paper extends the covering rough set model based on single granulation to the covering rough set model based on multi-granulations, which is named CMGRS. The lower and upper approximations of a set in a covering approximation space are defined based on multigranulations, and some basic properties are investigated.
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关键词
Rough sets,Multi-granulations,Covering
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