TITLE:
Realization of Rough Set Approximation Toplogical Operations Based on Formal Concept Analysis
AUTHORS:
Huilai Zhi
KEYWORDS:
Rough Set, Approximation Operation, Formal Context, Concept Lattice
JOURNAL NAME:
International Journal of Intelligence Science,
Vol.4 No.3,
July
4,
2014
ABSTRACT:
There is an intimate correlation between rough set theory and formal concept analysis theory, so rough set approximations can be realized by means of formal concept analysis. For any given multiple valued information system, the realization of rough set approximation operation has two major steps, firstly convert the information system from multiple valued one to single valued formal context, secondly realize rough set approximation operations aided by concept lattice, which is equivalent to a query operation under some necessary conditions.