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Relational interpretations of neighborhood operators and rough set approximation operators

被引：795
|
作者：
Yao, YY [1 ]
机构：
[1] Lakehead Univ, Dept Comp Sci, Thunder Bay, ON P7B 5E1, Canada
来源：
INFORMATION SCIENCES | 1998年 / 111卷 / 1-4期
关键词：
approximation operators; binary relations; neighborhood systems; rough sets; partitions; coverings;
D O I：
10.1016/S0020-0255(98)10006-3
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
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. (C) 1998 Elsevier Science Inc. All rights reserved.
引用
收藏
页码：239 / 259
页数：21
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