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. 2022 Sep 5;60(11):3057–3068. doi: 10.1007/s11517-022-02658-1

Fig. 9.

Fig. 9

The area under the curve (AUC) of all classifiers (discriminant analysis, SVM, and KNN) in the detection of the patient having anesthesia drug-using significant PPG features. The KNN achieve the best AUC of 0.95 with the highest sensitivity of 0.88 and the least false-positive rate of 0.09