A Novel Optimized Nonlinear Grey Bernoulli Model for Forecasting China’s GDP

Table 3

Results of optoelectronic application from the two models.

Year	Actual data	NGBM(1,1),		Optimized NGBM(1,1),
		Prediction	RPE (%)	Prediction	RPE (%)
1994	2.2	2.2	0.00	2.2	0.00
1995	3.2	3.193	0.23	3.053	−4.60
1996	4.2	4.545	−8.21	4.650	10.71
1997	6	5.577	7.04	5.839	−2.68
1998	6.4	6.242	2.47	6.412	0.18
1999	6.4	6.564	−2.57	6.400	0.00
MAPE (%)			4.10		3.64