Firstly, this paper defines the support function of the universes, with which the approximation operators of the generalized multigranulation fuzzy rough set is defined, and then generalized multigranulation fuzzy rough set based on two universes model is constructed. In addition, the properties of the approximation operators are discussed.
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孙 文 鑫.基于双论域的一般多粒度模糊粗糙集[J].重庆工商大学学报(自然科学版),2015,32(3):12-15 SUN Wenxing. Generalized Multigranulation Fuzzy Rough Set Based on Two Universes[J]. Journal of Chongqing Technology and Business University(Natural Science Edition),2015,32(3):12-15