Patent ID: 11971941
Assignee: TONGJI UNIVERSITY
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 4:
5. The online search method accounting for relevance and difference according to claim 1, wherein, for a document d, assuming that the document contains sentences s1, s2, . . . , sn, a semantic vector corresponding to each of the sentences is s1=[vi1, vi2, . . . ,vim], i=1, 2, . . . , n; an expression of the attribute characteristics of the document is:, Ψ
    d
   
   =
   
    
     [
     
      
       
        
         s
         1
        
       
      
      
       
        
         s
         2
        
       
      
      
       
        ⋮
       
      
      
       
        
         s
         n
        
       
      
     
     ]
    
    =
    
     
      [
      
       
        
         
          
           c
           11
          
          ,
          
           c
           12
          
          ,
          …
             
          ,
          
           c
           
            1
            ⁢
            m
           
          
         
        
       
       
        
         
          
           c
           21
          
          ,
          
           c
           22
          
          ,
          …
             
          ,
          
           c
           
            2
            ⁢
            m
           
          
         
        
       
       
        
         ⋮
        
       
       
        
         
          
           c
           
            n
            ⁢
            1
           
          
          ,
          
           c
           
            n
            ⁢
            2
           
          
          ,
          …
             
          ,
          
           c
           nm
          
         
        
       
      
      ]
     
     =
     
      [
      
       
        
         
          
           v
           11
          
          ,
          
           v
           12
          
          ,
          …
             
          ,
          
           v
           
            1
            ⁢
            m
           
          
         
        
       
       
        
         
          
           v
           21
          
          ,
          
           v
           22
          
          ,
          …
             
          ,
          
           v
           
            2
            ⁢
            m
           
          
         
        
       
       
        
         ⋮
        
       
       
        
         
          
           v
           
            n
            ⁢
            1
           
          
          ,
          
           v
           
            n
            ⁢
            2
           
          
          ,
          …
             
          ,
          
           v
           nm
          
         
        
       
      
      ]
     
    
   
  
  ,
 

where Ψd is the attribute characteristics of the document d.