EMD-GM-ARMA Model for Mining Safety Production Situation Prediction

Table 4

Prediction error analysis.

Evaluation index	Contrast model
	EMD-GM-ARMA (%)	ARIMA (%)	Wavelet neural network (%)	PSO-SVM (%)
MAE	0.3477	0.6133	1.2389	0.8560
MRE	9.8935	17.3718	29.7861	25.7764
RMSE	0.4029	0.7047	1.5085	1.1592