Distribution Law and Prediction Model of Dust Concentration under Airflow Adjustment in Fully Mechanized Heading Face

Table 10

The comparison results of different functions.

Function type	Function name	Iteration times	Mean square error
Transfer function	logsig	9	2.52e-2
	tansig	11	4.65e-2
	purelin	9	6.68e-1
Training function	traingdm	1000	3.17e-1
	trainglm	11	5.57e-2
	traingdx	137	8.52e-1
Learning function	learngdm	139	7.41e-2
	learngd	25	3.46e-2