基于优势关系的区间值粗糙集扩充模型

J4 ›› 2010, Vol. 45 ›› Issue (9): 7-13.

• 第十届中国Rough集与软计算学术会议专栏 • 上一篇下一篇

基于优势关系的区间值粗糙集扩充模型

杨青山,王国胤,张清华,马希骜

重庆邮电大学计算机科学与技术研究所, 重庆 400065

收稿日期:2010-06-13 出版日期:2010-09-16 发布日期:2010-10-12
作者简介:杨青山(1984-),男,硕士研究生,主要研究方向为智能信息处理、粒计算等. Email: yangqs1108@gmail.com
基金资助:
国家自然科学基金资助项目(60773113);重庆市杰出青年科学基金资助项目(2008BA2041);重庆市自然科学基金重点项目(2008BA2017)

The interval-valued Rough set extended model based on dominance relation

YANG Qing-shan, WANG Guo-yin, ZHANG Qing-hua, MA Xi-ao

Institute of Computer Science ＆ Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065

Received:2010-06-13 Online:2010-09-16 Published:2010-10-12

摘要/Abstract

摘要：

区间值信息系统是单值信息系统的一种扩充。首先在区间值信息系统中引入了四种优势关系,分析了四种优势关系的重要性质及相互联系,并针对四种优势关系的局限性,提出了一种新的优势关系——α-优势关系,进而定义了基于α-优势关系的扩充粗糙集模型。最后,通过教师评估实例比较分析了区间值信息系统中基于优势关系的扩充粗糙集模型之间的性能。

关键词: 区间值信息系统;优势关系;α-优势关系;粗糙集

Abstract:

The interval-valued information system is generalized model of single-valued information system. Four dominance relations are introduced to intervalvalued information system, and some important properties and relationships among four dominance relations are analyzed. Furthermore, based on limitations of four dominance relations, a novel dominance relation——α-dominance relation is proposed. And then, an extended Rough set model based on α-dominance relation is defined. Finally, through a teacher evaluation issue, performances of these extended rough set models based on dominance relation are also compared.

Key words: interval-valued information system; dominance relation; α-dominance relation; Rough set

杨青山,王国胤,张清华,马希骜. 基于优势关系的区间值粗糙集扩充模型[J]. J4, 2010, 45(9): 7-13.

YANG Qing-shan, WANG Guo-yin, ZHANG Qing-hua, MA Xi-ao. The interval-valued Rough set extended model based on dominance relation[J]. J4, 2010, 45(9): 7-13.

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基于优势关系的区间值粗糙集扩充模型

The interval-valued Rough set extended model based on dominance relation

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