A CONSTRUCTION OF NESTED ROUGH SET APPROXIMATIONS IN INFORMATION SYSTEMS USING DEPENDENCY OF ATTRIBUTES

被引：0

作者：

Herawan, Tutut ^{[1
]}

Deris, Mustafa Mat ^{[1
]}

机构：

[1] Univ Tun Hussein Onn Malaysia, Fac Informat Technol & Multimedia, Batu Pahat 86400, Johor, Malaysia

来源：

POWER CONTROL AND OPTIMIZATION, PROCEEDINGS | 2009年 / 1159卷

关键词：

Information systems; Rough set theory; Dependency of Attributes; Nested rough set approximations;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a new method for constructing nested rough set approximations in information systems. Our approach uses the notion of dependency of attributes in information systems. We begin with the notion of nested sequence of indiscernibility relations that can be defined from the dependency of attributes in information systems. With this notion, we can easily construct nested rough set approximations. In addition, we present the property of accuracy of approximation of sets in information systems.

引用

页码：324 / 330

页数：7

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