Table 4.

Paired $T$-test

Model	$T$ value	$P$ value
BP${}^{(1)}$	8.281	$<$ 0.05
GA-BP${}^{(2)}$	7.800	$<$ 0.05

${}^{*}$(1) indicates that the results of ResNet-50 network are statistically significant compared with BP network; (2) indicates that the ResNe-50t network is compared with the GA-BP network, and the result is also statistically significant.