Patent ID: 11948180
Assignee: UIF (UNIVERSITY INDUSTRY FOUNDATION), YONSEI UNIVERSITY
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 2:
3. The system of claim 1, wherein the processor is further configured to calculate the repurchase rate by Equation 2 below:, Repurchase
          ⁢
          
            
          
          ⁢
          
            rate
            (
            i
            )
          
        
        =
        
          1
          -
          
            
              Users
              ⁢
              
                
              
              ⁢
              
                (
                
                  i
                  ,
                  1
                
                )
              
            
            
              
                ∑
                
                  k
                  =
                  1
                
                max
              
              ⁢
              
                
              
              ⁢
              
                Users
                ⁢
                
                  
                
                ⁢
                
                  (
                  
                    i
                    ,
                    k
                  
                  )
                
              
            
          
        
      
    
    
      
        (
        2
        )
      
    
  

where Users(i, k) denotes a number of consumers who have purchased product i k times.