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Table 4 The cross-validation results using the feature set with the lowest error rate for the main dataset

From: Unraveling city-specific signature and identifying sample origin locations for the data from CAMDA MetaSUB challenge

True AKL BER BOG HAM HGK ILR LON MAR NYC OFA PXO SAC SAO SOF STO TOK
Predict
RF
 AKL 11    1   1        1    
 BER   19              1  
 BOG    14         1      
 HAM     14             
 HGK      15            
 ILR 1      23    1 1       
 LON        18     1   2   2  
 MAR         9         
 NYC      1     25 1    1 1   1
 OFA           18       
 PXO        1     16   1    
 SAC   1           18     
 SAO   1 1 1    1     1   18 2   
 SOF               7   
 STO 1       1 1      1   16 1
 TOK 1       1     1      23
 Error rate (%) 21.43 9.52 6.67 12.50 6.25 4.17 18.18 10.00 3.85 10.00 20.00 0.00 25.00 30.00 15.79 8.00
SVM
 AKL 11    1   1     1    1    
 BER   17       1    2 1    1  
 BOG    14              
 HAM 1    13             
 HGK      16            
 ILR   1     23    1        
 LON        22     1   2   2  
 MAR         8         
 NYC     1      25     1    1
 OFA           19     1   
 PXO    1      1    16   1    
 SAC             17     
 SAO   1   1        1   19 4   
 SOF   1             5   
 STO 1        1      1   16  
 TOK 1 1               24
 Error rate (%) 21.43 19.05 6.67 18.75 0.00 4.17 0.00 20.00 3.85 5.00 20.00 5.56 20.83 50.00 15.79 4.00
LDA
 AKL 9    1          1    
 BER   19   1        1   1   1  
 BOG    13              
 HAM     13             
 HGK    1   16      1       
 ILR       22    1      1   
 LON 1       22     2   4   2  
 MAR         9 1        
 NYC          24        1
 OFA       2     18       
 PXO 1    1     1    17      
 SAC 1            17     
 SAO 1   1          1 17 1   
 SOF           1    1 8   
 STO                16 1
 TOK 1 2               23
 Error rate (%) 35.71 9.52 13.33 18.75 0.00 8.33 0.00 10.00 7.69 10.00 15.00 5.56 29.17 20.00 15.79 8.00
Three methods
City AKL BER BOG HAM HGK ILR LON MAR NYC OFA PXO SAC SAO SOF STO TOK
 Average error rate (%) 26.19 12.69 8.89 16.67 2.08 5.56 6.06 13.33 5.13 8.33 18.33 3.70 25.00 33.33 15.79 6.67