The function defined in Section 4.7.3 of literature [1] is not a decision evaluation function, that is to say it cannot induce a three-way decision space. In what follows a correct decision evaluation function is given together with its proof. (C) 2015 Elsevier Inc. All rights reserved.
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Wuhan Univ, Sch Math & Stat, Wuhan 430072, Peoples R China
Wuhan Univ, Computat Sci Hubei Key Lab, Wuhan 430072, Peoples R ChinaWuhan Univ, Sch Math & Stat, Wuhan 430072, Peoples R China
Hu, Bao Qing
Wong, Heung
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Hong Kong Polytech Univ, Dept Appl Math, Hong Kong, Hong Kong, Peoples R ChinaWuhan Univ, Sch Math & Stat, Wuhan 430072, Peoples R China
Wong, Heung
Yiu, Ka-fai Cedric
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Hong Kong Polytech Univ, Dept Appl Math, Hong Kong, Hong Kong, Peoples R ChinaWuhan Univ, Sch Math & Stat, Wuhan 430072, Peoples R China