The Models of Variable Precision Multigranulation Rough Sets
作者： Huili Dou , Xibei Yang , Jiyue Fan , Suping Xu
DOI: 10.1007/978-3-642-31900-6_57
关键词: Binary relation 、 Rough set 、 Algorithm 、 Variable precision 、 Mathematics 、 Discrete mathematics
摘要: Multigranulation rough set is a new expansion of the classical since former use family binary relations instead single relation for constructing approximations. In this paper, basic idea variable precision introduced into multigranulation environment and then concept proposed. Similar to set, optimistic pessimistic sets are defined, respectively. Not only properties investigated, but also relationships among examined.
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