Research and Development Investment Combination Forecasting Model of High-Tech Enterprises Based on Uncertain Information

Table 3

Forecast results and errors of a single model.

Year	Actual value (10 K)	Predictive value			Relative error (%)
		GM (1, 1) model	Grey metabolic GM (1, 1) model	The cubic exponential smoothing method	GM (1, 1) model	The grey metabolic GM (1, 1) model	The cubic exponential smoothing method
2016	21368.59	19312.77	19312.79	20539.64	9.62	9.62	3.88
2017	24582.22	22722.01	23130.88	25011.67	7.57	5.90	1.75
2018	28864.64	26733.07	27462.58	30221.20	7.38	4.86	4.70
2019	34579.33	31452.19	32159.04	36168.23	9.04	7.00	4.59
SDE					2434.68	1819.34	1321.17
RMSE					2434.68	1819.34	1144.16
MAPE					8.40	6.85	3.73