Research Article
Public Procurement Announcements in Spain: Regulations, Data Analysis, and Award Price Estimator Using Machine Learning
Table 4
Error metrics between tender price and award price.
| Error | Value |
| Absolute error (AE) | See Figure 4(c) | Absolute percentage error (APE) | See Figure 5 | Median absolute error (MdAE) | €6,955.00 | Median absolute percentage error (MdAPE) | 11.84% | Mean absolute error (MAE) | €137,778.64 | Mean absolute percentage error (MAPE) | 39.79% | Root mean square error (RMSE) | 101,451,609,620,714 | Coefficient of determination | −3.10 |
|
|