Table 6.

Results obtained with augmented data (AD) using the second dataset, the ANN machine learning algorithm, different data augmentation methods and alternative test data.

Data Augmentation Method	Accuracy (%)
	100 AD	500 AD	2000 AD
Proposed	92.67	93.00	91.33
Signal stretching	84.33	84.00	87.67
Gaussian noise and signal stretching	83.33	83.67	86.67
SMOTE	88.33	88.67	85.67
Gaussian noise	84.00	87.33	85.67