Patent ID: 11921169
Assignee: WUHAN UNIVERSITY
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 8:
9. The method according to claim 7, wherein calculating the index weight vector comprises:
obtaining different weights ω′=(ω′1, ω′2, . . . , ω′k, . . . , ω′NSEC) by division using equal assignment according to the attribute Xk, where, ω
      1
      ′
    
    =
    
      
        ω
        2
        ′
      
      =
      
        …
        =
        
          
            ω
            k
            ′
          
          =
          
            …
            =
            
              
                ω
                
                  N
                  
                    SE
                    ⁢
                    
                      
                    
                    ⁢
                    C
                  
                
                ′
              
              =
              
                1
                
                  N
                  
                    S
                    ⁢
                    
                      
                    
                    ⁢
                    EC
                  
                
              
            
          
        
      
    
  
  ;, or
calculating respective weights ω′=(ω′1, ω′2, . . . , ω′k, . . . , ω′NSEC) using an objective weight assignment method, and then adjusting according to the induced component, and finally determining the weight values to be, {
    
      
        
          
            
              ω
              =
              
                (
                
                  
                    ω
                    1
                  
                  ,
                  
                    ω
                    2
                  
                  ,
                  ⋯
                  ⁢
                  
                    
                  
                  ,
                  
                    ω
                    k
                  
                  ,
                  ⋯
                  ⁢
                  
                    
                  
                  ,
                  
                    ω
                    
                      N
                      
                        SE
                        ⁢
                        
                          
                        
                        ⁢
                        C
                      
                    
                  
                
                )
              
            
          
        
        
          
            
              
                
                  ω
                  k
                
                =
                
                  
                    
                      ω
                      k
                      ′
                    
                    ⁢
                    
                      u
                      k
                    
                  
                  
                    
                      ∑
                      
                        k
                        =
                        1
                      
                      
                        N
                        
                          SE
                          ⁢
                          
                            
                          
                          ⁢
                          C
                        
                      
                    
                    ⁢
                    
                      
                        ω
                        k
                        ′
                      
                      ⁢
                      
                        u
                        k
                      
                    
                  
                
              
              ,
              
                
                  and
                  ⁢
                  
                    
                  
                  ⁢
                  
                    
                      ∑
                      
                        k
                        =
                        1
                      
                      
                        N
                        
                          SE
                          ⁢
                          
                            
                          
                          ⁢
                          C
                        
                      
                    
                    ⁢
                    
                      ω
                      k
                    
                  
                
                =
                1
              
            
          
        
      
      ,, where the induction vector u=(u1, u2, . . . , uk, . . . , uNSEC), wherein when a final weight has to be optimized according to the OWA operator F, an objective function is set as Γ(ω), thereby obtaining, {
    
      
        
          
            
              
                min
                ⁢
                
                  Γ
                  ⁡
                  
                    (
                    ω
                    )
                  
                
              
              =
              
                
                  ∑
                  
                    k
                    -
                    1
                  
                  
                    N
                    
                      S
                      ⁢
                      E
                      ⁢
                      C
                    
                  
                
                ⁢
                
                  Γ
                  ⁡
                  
                    (
                    
                      ω
                      k
                    
                    )
                  
                
              
            
          
        
        
          
            
              
                s
                .
                t
                .
                
                  
                    ∑
                    
                      k
                      -
                      1
                    
                    
                      N
                      
                        S
                        ⁢
                        E
                        ⁢
                        C
                      
                    
                  
                  ⁢
                  
                    ω
                    k
                  
                
              
              =
              1
            
          
        
      
      ,, and finally obtaining the weight vector ω=(ω1, ω2, . . . , ωk, . . . , ωNSEC) of each attribute.