A New Multivariable Grey Convolution Model Based on Simpson’s Rule and Its Applications

Table 6

The forecasted results and the values of three indices measuring accuracy by six competing models in case two.

Original values		548311.42	698590.42	844268.79	MAPE	RMSE
	Forecasted values	626326.04	774366.43	963930.75	13.08	93358.22
	Error (%)	14.23	10.85	14.17
	Forecasted values	622548.58	767770.55	953445.29	12.12	86055.32
	Error (%)	13.54	9.90	12.93
	Forecasted values	589395.96	721699.65	901242.19	5.85	42692.48
	Error (%)	7.49	3.31	6.75
	Forecasted values	588046.17	718898.95	895337.97	5.40	39155.02
	Error (%)	7.25	2.91	6.05
	Forecasted values	673916.59	898040.07	1081472.75	26.52	193065.22
	Error (%)	22.91	28.55	28.10
	Forecasted values	283772.70	382603.22	462874.97	46.22	324186.11
	Error (%)	48.25	45.23	45.17