Fig. 4

a The feature importance matrix for predicting the properties by the descriptor groups outlined in Section “Features”. The properties shown include the PBE bandgap, E_PBE, the HSE bandgap with (\({E}_{HSE}^{PBE}\)) and without (E_HSE) using the PBE bandgap as a feature, the GW bandgap with (\({E}_{GW}^{PBE}\)) and without (E_GW) using the PBE bandgap as a feature, and the exciton binding energy E_b. (b, c) The correlation plots for and linear fitting for the HSE and GW bandgaps versus the PBE bandgaps. (d–h) The correlation plots for the prediction of the regression models for E_PBE, E_HSE, E_GW and E_b, respectively