Application of a Hybrid Method Combining Grey Model and Back Propagation Artificial Neural Networks to Forecast Hepatitis B in China

Table 2

The evaluation indexes comparison.

Index		MSE	MAE	RMSE	MAPE	SSE
The proposal method	0.9495	2.3649 × 10^7	3.9704 × 10^4	4.863 × 10^3	3.9704 × 10^6	1.8162 × 10^10
GM (1, 1) model	0.6365	2.2867 × 10^8	1.0492 × 10^6	1.5122 × 10^4	1.0492 × 10^8	1.1078 × 10^13
GM (2, 1) model	0.9392	1.6798 × 10^8	1.1173 × 10^6	1.5122 × 10^4	1.1173 × 10^8	1.2570 × 10^13