T-rough approximation pairs and covering based rough sets

Xiaohong Zhang; Zhanao Xue; Yanning Zhang; Yingcang Ma

doi:10.3233/FI-2015-1291

T-rough approximation pairs and covering based rough sets

Xiaohong Zhang, Zhanao Xue, Yanning Zhang, Yingcang Ma

School of Computer Science

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The relationships between T-rough sets and covering based rough sets are investigated, and two kinds of generated methods of rough approximation operators from existing rough sets are established. Moreover, applying the aforementioned generated methods of approximation operators, S-rough sets and some new covering-based rough sets are introduced and their basic properties are discussed.

Original language	English
Pages (from-to)	195-212
Number of pages	18
Journal	Fundamenta Informaticae
Volume	142
Issue number	1-4
DOIs	https://doi.org/10.3233/FI-2015-1291
State	Published - 9 Dec 2015

Keywords

Closeness
Covering
Rough approximation pair
S-rough set
T-rough set

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10.3233/FI-2015-1291

Cite this

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AB - The relationships between T-rough sets and covering based rough sets are investigated, and two kinds of generated methods of rough approximation operators from existing rough sets are established. Moreover, applying the aforementioned generated methods of approximation operators, S-rough sets and some new covering-based rough sets are introduced and their basic properties are discussed.

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KW - S-rough set

KW - T-rough set

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T-rough approximation pairs and covering based rough sets

Abstract

Keywords

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