Upper and lower approximations of fuzzy sets

被引：128

作者：

Boixader, D

Jacas, J

Recasens, J

机构：

[1] ETSAV, Sec Matemat & Informat, Sant Cugat 08190, Spain

[2] ETSAB, Sec Matemat & Informat, Barcelona 08028, Spain

来源：

INTERNATIONAL JOURNAL OF GENERAL SYSTEMS | 2000年 / 29卷 / 04期

关键词：

indistinguishability operator; generator; observable set; upper approximation; lower approximation; rough set; closure operator; fuzzy topology;

D O I：

10.1080/03081070008960961

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

The upper and lower approximations of a fuzzy subset with respect to an indistinguishability operator are studied. Their relations with fuzzy rough sets are also investigated.

引用

页码：555 / 568

页数：14

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