Set-valued ordered information systems under dominance relation

Journal of Computer Applications ›› 2011, Vol. 31 ›› Issue (12): 3240-3242.

• Database technology • Previous Articles Next Articles

Set-valued ordered information systems under dominance relation

LIN Yao-jin¹,LI Jin-jin²,LIN Meng-lei¹

1. Department of Computer Science and Engineering, Zhangzhou Normal University, Zhangzhou Fujian 363000, China
2. Department of Mathematics and Information Science, Zhangzhou Normal University, Zhangzhou Fujian 363000, China

Received:2011-06-10 Revised:2011-08-18 Online:2011-12-12 Published:2011-12-01
Contact: LIN Yao-jin

优势关系下的集值序值信息系统

林耀进¹,李进金²,林梦雷¹

1. 漳州师范学院计算机科学与工程系, 福建漳州 363000
2. 漳州师范学院数学与信息科学系，福建漳州 363000

通讯作者: 林耀进
基金资助:
国家自然科学基金资助项目;福建省教育厅A类重点项目;漳州师范学院科学研究资助项目

Abstract

Abstract: Set-valued ordered information systems could be divided into conjunctive/disjunctive set-valued ordered information systems. Through analyzing the limitations of the existing dominance relations in conjunctive/disjunctive set-valued ordered information systems and discussing the unreasonable situations, new dominance relations which could classify objects better were proposed. Based on this, rough set models in conjunctive/disjunctive setvalued ordered information systems were constructed, and the validity of the proposed technique was checked with classical instances.

Key words: rough set, set-valued ordered information systems, dominance relation, knowledge reduction

摘要： 集值序值信息系统分为合取/析取集值序值信息系统，分别深入分析了合取/析取集值序值信息系统已有优势关系的局限性，并对其不合理情形进行了讨论，进而提出了对对象进行更好划分的新优势关系。在此基础上，分别构建了优势关系下的合取/析取集值序值信息系统的粗集模型，并通过典型例子验证了该方法的有效性。

关键词: 粗糙集, 集值序值信息系统, 优势关系, 知识约简

CLC Number:

TP18

LIN Yao-jin LI Jin-jin LIN Meng-lei. Set-valued ordered information systems under dominance relation[J]. Journal of Computer Applications, 2011, 31(12): 3240-3242.

林耀进李进金林梦雷. 优势关系下的集值序值信息系统[J]. 计算机应用, 2011, 31(12): 3240-3242.

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Set-valued ordered information systems under dominance relation

优势关系下的集值序值信息系统

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