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

Table 9

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

Original values		65894.78	67822.93	72103.41	MAPE	RMSE
	Forecasted values	74781.44	77760.78	82791.00	14.32	9865.06
	Error (%)	13.49	14.65	14.82
	Forecasted values	74387.88	77235.75	82033.66	13.51	9297.73
	Error (%)	12.89	13.88	13.77
	Forecasted values	73784.29	76581.01	81414.67	12.60	8672.71
	Error (%)	11.97	12.91	12.91
	Forecasted values	73306.88	75968.74	80567.28	11.67	8019.37
	Error (%)	12.01	12.01	11.74
	Forecasted values	90944.46	97409.07	105286.45	42.55	29461.50
	Error (%)	38.01	43.62	46.02
	Forecasted values	18986.34	21522.63	24452.89	68.51	46956.34
	Error (%)	71.19	68.27	66.09