Paper:
Language: English:
Toward a Generalization of Rough Sets Based on Active and Passive Relations
Masashi Emoto*, Rolly Intan**, and Masao Mukaidono*
*Meiji University, 1-1-1 Higashi-mita, Tama-ku, Kawasaki, Japan
**Department of Informatics Engineering, Petra Christian University, Jl. Siwalankerto 121-131, Surabaya 60236, Indonesia
Received: December 11, 2005
Accepted: January 18, 2006
Keywords: rough set, conditional probability relation, active relation, passive relation
Journal ref: Journal of Advanced Computational Intelligence and Intelligent Informatics, Vol.10, No.6 pp. 939-945, 2006
Abstract
In the generalization of rough sets, many concepts use a relation weaker than the equivalence relation usually used in classical rough sets, e.g., induced by a conditional probability relation. The conditional probability relation is binary and assumes that the relationship between two data (elements or objects) resembles a relationship between two events in conditional probability. We use the asymmetric property of the conditional probability relation to propose active and passive relations, then discuss a generalization and properties of rough sets based on active and passive relations.
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Reference
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