Title : 
On the definition of type-2 fuzzy sets
         
        
            Author : 
Mo, Hong ; Zhou, Min
         
        
            Author_Institution : 
Coll. of Electr. & Inf. Eng., Changsha Univ. of Sci. & Technol., Changsha, China
         
        
        
        
        
        
            Abstract : 
This paper introduces four kinds of definition of type-2 fuzzy sets(T2 FS), and provides their difference and connection, then presents a new definition of type-2 fuzzy set to make it to be understood more easily, In finial, we modify the definition and formula of footprint of uncertainty (FOU) of T2 FS and give the relation of FOU and T2 FS.
         
        
            Keywords : 
fuzzy set theory; footprint of uncertainty; support set; type-2 fuzzy sets; Biological system modeling; Educational institutions; Frequency selective surfaces; Fuzzy sets; Mathematical model; Pragmatics; Uncertainty; FOU; T2 FS; support set;
         
        
        
        
            Conference_Titel : 
Intelligent Control and Automation (WCICA), 2012 10th World Congress on
         
        
            Conference_Location : 
Beijing
         
        
            Print_ISBN : 
978-1-4673-1397-1
         
        
        
            DOI : 
10.1109/WCICA.2012.6357950