Research Article
An Application of a Three-Stage XGBoost-Based Model to Sales Forecasting of a Cross-Border E-Commerce Enterprise
Table 4
The description of the training set, validation set, and test set.
| | Data set | Samples | Number of weeks | Start date | End date | The first day | The last day |
| | Training set 1 | Clustering series | 50 | Mar.1, 2017 (WED) | Dec.2, 2017 (SAT) | 1 | 347 | | Training set 2 | SKU code = 94033 | 50 | Mar.1, 2017 (WED) | Dec.2, 2017 (SAT) | 1 | 277 | | Validation set | SKU code = 94033 | 10 | Dec.3, 2017 (SUN) | Feb.10, 2018 (SAT) | 278 | 347 | | Test set | SKU code = 94033 | 5 | Feb.11, 2018 (SUN) | Mar.16, 2018 (FRI) | 348 | 381 |
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