International Journal of Concrete Structures and Materials

Table 10 Influence of various population sizes and iterations on PSO–DA ANFIS.

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

Method	Population size				Iteration
Method	25	50	75	100	100	200	300	400
MAPE	11.76	1.67	1.75	1.71	14.83	11.52	7.37	1.67
Efficiency	0.85	0.97	0.95	0.95	0.82	0.86	0.91	0.97
R²	0.87	0.92	0.92	0.91	0.85	0.86	0.85	0.92
RMSE	3.43	2.68	2.70	2.69	4.68	4.09	3.71	2.68

Bold numbers in the table are related to the maximum or minimum of the obtained results

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