Study of the Magnetic Properties of Haematite Based on Spectroscopy and the IPSO-ELM Neural Network

Table 1

Performance comparison of the ELM, PSO-ELM, and IPSO-ELM.

Type of model	RMSE	Time consuming (s)	Number of hidden layer nodes	Norm of output matrix
ELM	2.4502	0.004115	28	236.4392
PSO-ELM	2.0129	7.912648	18	52.7091
IPSO-ELM	1.8488	4.713289	18	20.3052