Knowledge Reduction of Set-Valued Decision Information Systems Based on Tolerance Relation

Hong Wang; Ran Gao

doi:10.4028/www.scientific.net/AMM.462-463.466

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 462-463Knowledge Reduction of Set-Valued Decision...

Knowledge Reduction of Set-Valued Decision Information Systems Based on Tolerance Relation

Abstract:

Knowledge reduction is one of the main problems in the study of rough set theory. This paper deals with knowledge reduction of set-valued decision information systems based on tolerance relation. The concepts of distribution reduct based on set-valued decision information systems is introduced. The judgement theorems and discernibility matrices associated with the tolerance relation were examined, from which we can obtain the specific operation methods to inconsistent set-valued decision information systems.

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Periodical:

Applied Mechanics and Materials (Volumes 462-463)

Pages:

466-471

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.462-463.466

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Online since:

November 2013

Authors:

Hong Wang*, Ran Gao

Keywords:

Knowledge Reduction, Rough Set (RS), Set-Valued Decision Information System, α-Level Tolerance Relation

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