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

Table 3

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

Original values		779	738	669	600	MAPE	RMSE
	Forecasted values	774.67	732.08	686.91	642.11	2.76	23.17
	Error (%)	0.56	0.80	2.68	7.02
	Forecasted values	771.98	727.90	681.15	634.95	2.48	19.50
	Error (%)	0.90	1.37	1.82	5.83
	Forecasted values	771.88	729.81	685.10	640.54	2.80	22.48
	Error (%)	0.91	1.11	2.41	6.76
	Forecasted values	768.88	725.39	679.18	633.25	2.52	19.17
	Error (%)	1.30	1.71	1.52	5.54
	Forecasted values	650.10	554.29	467.39	430.85	24.94	172.93
	Error (%)	16.55	24.89	30.14	28.19
	Forecasted values	377.57	327.26	282.54	247.85	55.91	388.34
	Error (%)	51.53	55.66	57.77	58.69