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Soft Computing
Published in: Soft Computing 3/2011

01-03-2011 | Original Paper

Variable precision rough set model over two universes and its properties

Authors: Yonghong Shen, Faxing Wang

Published in: Soft Computing | Issue 3/2011

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Abstract

The extension of rough set model is an important research direction in the rough set theory. In this paper, based on the rough set model over two universes, we firstly propose the variable precision rough set model (VPRS-model) over two universes using the inclsion degree. Meantime, the concepts of the reverse lower and upper approximation operators are presented. Afterwards, the properties of the approximation operators are studied. Finally, the approximation operators with two parameters are introduced as a generalization of the VPRS-model over two universes, and the related conclusions are discussed.
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Metadata
Title
Variable precision rough set model over two universes and its properties
Authors
Yonghong Shen
Faxing Wang
Publication date
01-03-2011
Publisher
Springer-Verlag
Published in
Soft Computing / Issue 3/2011
Print ISSN: 1432-7643
Electronic ISSN: 1433-7479
DOI
https://doi.org/10.1007/s00500-010-0562-6

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