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Table 3

Performance of each control chart for 5% and 10% variation of km,ac

+ 5% km,ac
+ 10% km,ac
Method and statisticPrecisionRecallF1 ScoreDelay (day)PrecisionRecallF1 ScoreDelay (day)
VFA-CUSUM 0.97 0.95 0.96 3.64 0.98 0.96 0.97 2.48 
VFA-SPE 0.96 0.20 0.34 8.85 0.99 0.84 0.91 1.81 
VFA-T2 (5 inputs) 0.77 0.05 0.10 10.58 0.96 0.38 0.55 1.93 
PCA-T2 (5 inputs) 0.01 0.02 Not detected 0.1 0.19 6.01 
PCA-SPE (5 inputs) 0.39 Not detected 0.83 0.03 0.06 Not detected 
+ 5% km,ac
+ 10% km,ac
Method and statisticPrecisionRecallF1 ScoreDelay (day)PrecisionRecallF1 ScoreDelay (day)
VFA-CUSUM 0.97 0.95 0.96 3.64 0.98 0.96 0.97 2.48 
VFA-SPE 0.96 0.20 0.34 8.85 0.99 0.84 0.91 1.81 
VFA-T2 (5 inputs) 0.77 0.05 0.10 10.58 0.96 0.38 0.55 1.93 
PCA-T2 (5 inputs) 0.01 0.02 Not detected 0.1 0.19 6.01 
PCA-SPE (5 inputs) 0.39 Not detected 0.83 0.03 0.06 Not detected 
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