Application of BP Neural Network Improved by Fireworks Algorithm on Suspender Damage Prediction of Long-Span Half-Through Arch Bridge

Table 8

Prediction results of damage degree based on different models.

Output target value	Prediction result
	BPNN	GA-BPNN	PSO-BPNN	FWA-BPNN
0.21	0.2011	0.2057	0.2069	0.2074
0.35	0.3381	0.3452	0.3473	0.3489
0.42	0.4019	0.4096	0.4125	0.4138
0.54	0.5237	0.5365	0.5349	0.5372
0.63	0.6078	0.6253	0.6234	0.6281
0.76	0.7326	0.7488	0.7502	0.7535
0.87	0.8469	0.8674	0.8671	0.8682
0.98	0.9575	0.9706	0.9713	0.9716