Table 3. Mean Absolute Error of the Molecules’ Binding Energy Shifts (eV) with Respect to the Experiments for the B, C, N, and O Elements.

method	B	C	N	O
AE-PBE	0.27	0.38	0.14	0.11
AE-B3LYP	0.06	0.12	0.12	0.10
PP-PBE	0.23	0.20	0.15	0.11
PP-PBE(B3LYP)	0.11	0.18	0.14	0.12