An Application of a Three-Stage XGBoost-Based Model to Sales Forecasting of a Cross-Border E-Commerce Enterprise

Table 10

The performance evaluation of A-XGBoost.

A-XGBoost	Validation set	Test set
Minimum error	−0.003	−8.151
Maximum error	0.002	23.482
Mean error	0.000	1.213
Mean absolute error	0.001	4.566
Standard deviation	0.001	6.262
Linear correlation	1	−0.154
Occurrences	70	34