Tourism Demand Forecasting Based on Grey Model and BP Neural Network

Table 1

Prediction value of the single model and its relative error table.

Year	Actual value	GM model prediction	Univariate predicted value	Multivariable predictive value	Combined model prediction
2010	6.97	6.88	7.31	6.89	7.15
2011	7.21	7.15	7.27	7.38	7.29
2012	7.55	7.39	7.38	7.59	7.45
2013	7.95	8.01	9.92	8.13	7.96
2014	8.89	8.82	8.63	8.71	8.69
2015	9.94	9.76	9.71	9.28	9.64
2016	11.13	11.39	11.12	11.34	11.18
2017	12.23	12.51	12.19	12.03	12.18
2018	13.85	13.74	13.97	14.19	13.89
2019	16.21	15.98	16.21	16.15	16.18
2020	17.23	17.55	16.32	17.23	16.68