Relational interpretations of neighborhood operators and rough set approximation operators
作者： Y.Y. Yao
DOI: 10.1016/S0020-0255(98)10006-3
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摘要: This paper presents a framework for the formulation, interpretation, and comparison of neighborhood systems and rough set approximations using the more familiar notion of binary relations. A special class of neighborhood systems, called 1-neighborhood systems, is introduced. Three extensions of Pawlak approximation operators are analyzed. Properties of neighborhood and approximation operators are studied, and their connections are examined.
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