Patent ID: 11868432
Assignee: SICHUAN UNIVERSITY
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 1:
2. The method for extracting the kansei adjective of the product based on PCA-E according to claim 1, wherein the product kansei evaluation vector matrix is constructed according to kansei evaluation vectors of different users for a same product or same product category;
the product kansei evaluation vector matrix constructed for an m-th product or product category Cm is as follows:, V
      m
     
     =
     
      [
      
       
        
         
          x
          
           m
           ,
           1
          
          1
         
        
        
         ⋯
        
        
         
          x
          
           m
           ,
           1
          
          k
         
        
       
       
        
         ⋮
        
        
         ⋱
        
        
         ⋮
        
       
       
        
         
          x
          
           m
           ,
           n
          
          1
         
        
        
         ⋯
        
        
         
          x
          
           m
           ,
           n
          
          k
         
        
       
      
      ]
     
    
   
   
    
     (
     1
     )
    
   
  
 

wherein, xm,nk denotes an evaluation score of a user Pk for an n-th kansei adjective Kn of the product or product category Cm; m, n, and k are integers; an evaluation criterion for the product kansei evaluation vector matrix Vm is a 5-, 7- or 9-point Likert scale; KWn=(kwn−, kwn+) denotes a pair of antonyms for expressing an attribute of the kansei adjective Kn, wherein kwn− and kwn+ denote left and right antonyms, respectively.