Table 2 Mean signed error (MSE), mean absolute error (MAE), and mean absolute percentage error (MAPE) of calculated formation energies relative to experiments for 19 group I and II oxides and the transition metal oxides TiO\({}_{2}\) and RuO\({}_{2}\)
PBE | BEEF-vdW | EXX | RPA | rAPBE | |
|---|---|---|---|---|---|
MSE | −0.55 | −0.40 | −0.96 | −0.38 | −0.18 |
MAE | 0.55 | 0.40 | 0.99 | 0.38 | 0.21 |
MAPE | 14.7% | 10.9% | 39.6% | 12.1% | 6.6% |