Open Access

This article has an erratum: [https://doi.org/10.2516/ogst/2019053]


Table 5

Performance characteristics (statistical indicators) GPTIPS based models applied to crude oils in the database. Fold-0i means that the fold is external to the learning procedure.

Fold-01 Fold-02 Fold-03 Fold-04 Fold-05 Fold-06 Fold-07 Fold-08 Fold-09
MAE 0.80 0.83 0.94 1.04 0.93 0.89 0.88 0.81 0.96
RMSE 1.02 1.30 1.27 1.40 1.18 1.08 1.07 0.97 1.38
R 2 0.915 0.861 0.868 0.838 0.886 0.903 0.905 0.922 0.843
CCC 0.954 0.925 0.934 0.919 0.940 0.951 0.950 0.960 0.921

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