Table 2. Hyperparameters used in the training.

Optimizer	SGDM
Mini-batch size	16
Initial learning rate	3e-4
Learning rate drop factor	0.2
Learning rate drop period	8
L2 regularization factor	0.004
Validation frequency	16
Momentum	0.9
Maximum # of epochs	20
SGDM: Stochastic gradient descent with momentum.