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Complexity
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2019
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Tab 4
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