Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/100874
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Type: Journal article
Title: Bipolar-valued rough fuzzy set and Its applications to the decision information system
Author: Han, Y.
Shi, P.
Chen, S.
Citation: IEEE Transactions on Fuzzy Systems, 2015; 23(6):2358-2370
Publisher: IEEE
Issue Date: 2015
ISSN: 1063-6706
1941-0034
Statement of
Responsibility: 
Ying Han, Peng Shi and Sheng Chen
Abstract: In this paper, first, relationship between bipolar- valued fuzzy set and fuzzy set with its extensions is discussed. Second, a new order relation about bipolar-valued fuzzy sets is introduced. Contrary to the existing YinYang order relation about bipolar-valued fuzzy sets, which focuses on the “equilibrium” monotonicity, the new proposed order relation is concerned with “preference” monotonicity. And then, some new operations and related properties about the new defined order relation are presented. Third, by combining bipolar-valued fuzzy set with the rough set theory, the concept of the bipolar-valued rough fuzzy set is developed, which is the first attempt to consider inconsistent bipolarity into rough set theory. Particularly, by introducing two new operations to the rough set theory, the widely existing information losing problem in the computation process is solved. Furthermore, parameter-related and parameter-free rough degrees about the bipolar-valued fuzzy sets in a crisp approximation space are introduced. Finally, the bipolar-valued fuzzy decision information system is given; then, both the attribute reduction method and the knowledge discovery method based on the pro- posed roughness degree are presented. An example is included to show the feasibility and potential of the obtained theoretical results.
Keywords: Bipolarity and fuzziness; bipolar-valued fuzzy decision information system; bipolar-valued rough fuzzy sets (BVRFSs); knowledge discovery; rough degrees
Rights: © 2015 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission. See http://www.ieee.org/publications standards/publications/rights/index.html for more information
DOI: 10.1109/TFUZZ.2015.2423707
Grant ID: http://purl.org/au-research/grants/arc/DP140102180
http://purl.org/au-research/grants/arc/LP140100471
http://purl.org/au-research/grants/arc/LE150100079
Published version: http://dx.doi.org/10.1109/tfuzz.2015.2423707
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Electrical and Electronic Engineering publications

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