International Journal of Concrete Structures and Materials

Table 6 Error mean and error std. for different methods.

From: A Hybrid Particle Swarm Optimization with Dragonfly for Adaptive ANFIS to Model the Corrosion Rate in Concrete Structures

Method	Train		Test
	Error mean	Error Std	Error mean	Error Std
GA	0.4586	6.9268	0.2699	5.6155
PSO	0.1002	6.1799	0.0288	4.1593
HPSO	− 0.2043	6.4002	− 0.3394	3.9592
PSO–DA	− 0.0552	5.6300	− 0.1582	2.6873
IGA	− 0.1410	6.7674	− 0.2814	5.1517
MGA	0.1779	6.9048	− 0.0728	5.5206
Bat	0.7239	6.3980	0.2750	4.4894
BBO	− 0.1175	6.0749	0.2107	5.1976

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