Paper Info
Title
Rough set approximations in formal concept analysis and knowledge spaces
Abstract
This paper proposes a generalized definition of rough set approximations, based on a subsystem of subsets of a universe. The sub-system is not assumed to be closed under set complement, union and intersection. The lower or upper approximation is no longer one set but composed of several sets. As special cases, approximations in formal concept analysis and knowledge spaces are examined. The results provide a better understanding of rough set approximations.
Year
DOI
Venue
2008
10.1007/978-3-540-68123-6_35
ISMIS
Keywords
Field
DocType
upper approximation,special case,better understanding,generalized definition,formal concept analysis,rough set approximation,knowledge space,rough set
Data mining,Algebra,Computer science,Rough set,Knowledge structure,Infinite set,Closed set,Universe,Upper approximation,Formal concept analysis,Dominance-based rough set approach
Conference
Volume
ISSN
ISBN
4994
0302-9743
3-540-68122-1
Citations 
PageRank 
References 
10
0.55
11
Authors
3
Name
Order
Citations
PageRank
Feifei Xu1765.25
Y. Y. Yao29707674.28
Duoqian Miao31854119.26