[1]ZHENG Tingting,SANG Xiaoshuang,MA Binbin.α-cut sets of hesitant fuzzy sets and their applications[J].CAAI Transactions on Intelligent Systems,2017,12(3):362-370.[doi:10.11992/tis.201704026]
                                
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                                    CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume:
                                    12
                                    Number of periods:
                                    2017 3
                                    Page number:
                                    362-370
                                    Column:
                                    学术论文—智能系统
                                    Public date:
                                    2017-06-25
                                
                                
                                    - Title:
 
                                    - 
                                        α-cut sets of hesitant fuzzy sets and their applications
 
                                
                                
                                
                                    - Author(s):
 
                                    - 
                                        ZHENG Tingting;  SANG Xiaoshuang;  MA Binbin
 
                                    - 
                                        School of Mathematical Sciences, Anhui University, Hefei 230601, China
 
                                    - 
                                
 
                                
                                    - Keywords:
 
                                    - 
                                        hesitant fuzzy set; type-1 fuzzy set; interval type-2 fuzzy set; α-cut set; decomposition theorem; extension principle; multiple attribute decision-making; clustering analysis
 
                                
                                
                                    - CLC:
 
                                    - 
                                        TP18;O159
 
                                
                                
                                    - DOI:
 
                                    - 
                                        10.11992/tis.201704026
 
                                
                                
                                
                                    - Abstract:
 
                                    - 
                                        The typical cut set is a bridge between fuzzy sets and clarity sets. The hesitant fuzzy set (HFS) theory, as an extension of the classical fuzzy set theory, has not been thoroughly studied till date; furthermore, there is less discussion regarding the relation between the HFS and classical type-I fuzzy set theory or other fuzzy set theories. This study analyzed the relations between the HFS and type-1 fuzzy set theory and between HFS and interval type-2 fuzzy set theory, proposed the concept of α-cut sets of HFS, and discussed their properties. Meanwhile, the decomposition (representation) theorems and the more general extension principles of HFS based on α-cut sets were deduced. The corresponding properties were studied. The results of the simulation prove the rationality of the α-cut set concept and provide a novel method for hesitant fuzzy multiple attribute decision-making and clustering analysis. All these conclusions deeply enrich the fundamental theory of HFS.