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Intuitionistic fuzzy rough sets model based on (Θ, Φ)-operators

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3 Author(s)
Weihua Xu ; Sch. of Math. & Stat., Chongqing Univ. of Technol., Chongqing, China ; Yufeng Liu ; Wenxin Sun

The extension of rough set model is an important research direction in rough set theory. The aim of this paper is to present a new extension. At the first, we introduce a pair of dual intuitionistic fuzzy operators (Θ, Φ). And some important properties are examined about these these operators. Moreover, θ-lower and φ-upper approximation operators are defined, by using the operators, and a novel intuitionistic fuzzy rough set model is constructed based on an intuitionistic fuzzy equivalence relation. Furthermore, some valuable properties are obtained in the model.

Published in:

Fuzzy Systems and Knowledge Discovery (FSKD), 2012 9th International Conference on

Date of Conference:

29-31 May 2012