Research on GDP Forecast Analysis Combining BP Neural Network and ARIMA Model

Table 2

Sequence-level comparison test of the neural network.

Level number	Correlation coefficient	Weight	Error rate/%
1	0.97	0.32	9.17
2	0.86	0.34	5.43
3	0.88	0.21	6.77
4	0.91	0.13	3.54