Table 6. Validation accuracy with PReLU as activation function in the first hidden layer.

1st hidden layer	2nd hidden layer	Epoch number	Accuracy rate
PReLU	ELU	100	68.25%
		200	72.40%
		300	69.30%
		400	67.08%
PReLU	PReLU	100	63.98%
		200	70.18%
		300	75.67%
		400	74.44%
PReLU	Leaky ReLU	100	72.46%
		200	72.34%
		300	74.62%
		400	72.34%