Patent ID: 11874862
Assignee: XI'AN JIAOTONG UNIVERSITY
Field: Computer technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 3:
4. The community question-answer web site answer sorting method combined with active learning according to claim 1, wherein the question long tail factor and the user long tail factor in step 1 are calculated as follows:, q_factor
   =
   
    1
    
     1
     +
     
      e
      
       -
       
        (
        
         
          
           ω
           q
          
          ·
          
           qv
           i
          
         
         -
         
          ϕ
          q
         
        
        )
       
      
     
    
   
  
  ⁢
  

  
   u_factor
   =
   
    1
    
     1
     +
     
      e
      
       -
       
        (
        
         
          
           ω
           u
          
          ·
          
           uac
           i
          
         
         -
         
          ϕ
          u
         
        
        )
       
      
     
    
   
  
 

where qvi indicates the sum of approvals to all the answers to the question qi, that is, q
    ⁢
    
     v
     i
    
   
   =
   
    
     ∑
     
      j
      =
      1
     
     
      m
      i
     
    
    
     a
     ⁢
     
      v
      i
      j
     
    
   
  
  ;
 

mi is the total number of answers to a question;
ωq=0.1, ϕq=0.6 both represent calculation parameters of the question long tail factor;
uaci indicates the number of answers of the user ui;
ωu=0.1, ϕu=1 both represent calculation parameters of the user long tail factor.