Patent ID: 11947622
Assignee: THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 3:
4. The method according to claim 1, wherein statistical likelihood ratio represents a likelihood ratio statistic:, Λ
    =
    
      
        
          
          
            X
            -
            
              
                P
                ^
              
              ⁢
              
                
                  S
                  ^
                
                T
              
            
          
          
        
        2
      
      
        
          
          
            X
            -
            
              
                
                  P
                  ^
                
                H
              
              ⁢
              
                
                  S
                  ^
                
                H
                T
              
            
          
          
        
        2
      
    
  
  ,

wherein {circumflex over (P)} and Ŝ represent estimates of Pm×k and Sn×k which are lower dimension factors whose product approximates the high dimensional data set matrix Xm×n, k<<min(m,n), and {circumflex over (P)}H and ŜH represent estimates of the feature basis matrix PH and the indicator matrix SH,
further comprising determining the statistically significant change in the pattern of differences based on an increased value of the likelihood ratio statistic.