Supervised Machine Learning Based Noninvasive Prediction of Atrial Flutter Mechanism from P-to-P Interval Variability under Imbalanced Dataset Conditions

Table 4

Difference of original dataset from augmented dataset at 400% augmentation rate.

Quartile (%)	SMOTE	Modified-SMOTE	Smoothed-bootstrap
25	0	0	6
50	1.5	1.5	1.5
75	2	0	3