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机译:半单层覆盖粗糙集的集价值信息系统及其有效计算
Henan Polytech Univ Coll Comp Sci & Technol Jiaozuo 454003 Henan Peoples R China;
Univ Ulster Sch Comp Newtownabbey BT37 0QB North Ireland;
Henan Polytech Univ Coll Comp Sci & Technol Jiaozuo 454003 Henan Peoples R China;
Henan Polytech Univ Coll Comp Sci & Technol Jiaozuo 454003 Henan Peoples R China;
Set-valued information system; Semi-monolayer covering; Approximation quality; Granule-based form of approximation operator;