[1]翟永健,张宏.不完备信息系统中的优势关系多粒度粗糙集[J].南京理工大学学报(自然科学版),2012,36(01):66-72.
 ZHAI Yong-Jian,ZHANG Hong.Dominance-based Multigranulation Rough Sets in Incomplete Information System[J].Journal of Nanjing University of Science and Technology,2012,36(01):66-72.
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不完备信息系统中的优势关系多粒度粗糙集
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
36卷
期数:
2012年01期
页码:
66-72
栏目:
出版日期:
2012-02-29

文章信息/Info

Title:
Dominance-based Multigranulation Rough Sets in Incomplete Information System
作者:
翟永健; 张宏;
南京理工大学计算机科学与技术学院;
Author(s):
ZHAI Yong-JianZHANG Hong
School of Computer Science and Technology,NUST,Nanjing 210094,China
关键词:
多粒度 粗糙集 扩展优势关系 限制优势关系
Keywords:
multigranulation rough sets expanded dominance relation limited dominance relation
分类号:
TP18
摘要:
为了从多视角研究不完备信息系统中的粗糙集方法,分析了具有独立分布优势关系粗糙集的不足。对基于扩展优势关系和限制优势关系的单粒度粗糙集模型进行了扩展,分别提出了乐观和悲观多粒度粗糙集模型。对新提出模型的性质进行了讨论,而且对比分析了基于两种不同优势关系的多粒度粗糙集下、上近似集。研究结果表明,在多粒度环境下,限制优势关系比扩展优势关系可以获得更大的下近似和更小的上近似的结论。
Abstract:
To study the rough set approach from the multi-view in incomplete information system,the limitation of dominance-based rough set approach with independent distribution is analyzed.The single-granulation rough sets based on expanded and limited dominance relations are expanded.The optimistic and pessimistic multigranulation rough sets are proposed,respectively.The basic properties of the new proposed models are analyzed and the multigranulation lower and upper approximations based on two different dominance relations are compared.The research results show that we can obtain greater lower approximations and smaller upper approximations through the limited dominance relation than the expanded dominance relation under multigranulation environment.

参考文献/References:

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备注/Memo

备注/Memo:
国家自然科学基金(60903027)
更新日期/Last Update: 2012-10-12