Figure summarizes the fits for each model. In the column on the left, the formation energies are normalized per atom, and the column on the right, they are normalized per oxygen atom. Comparing figure to figure 1C suggests that the one-parameter 110% PBE correction method presented in this work fits the data better than the standard correction method. Figure shows that the 110% PBE correction method exhibits a mean absolute error (MAE) of 0.10 eV/atom, and figure shows that the standard method exhibits a validation error of 0.12 eV/atom, which is halfway between the MAE of the 110% PBE correction method and the MAE of the raw, uncorrected data. Furthermore, figure shows that the 110% PBE correction method continues to perform well when we consider the oxides alone while the standard correction does not. The 110% PBE model gives half the MAE of the standard model.