Fig. 4From: Binding affinity prediction for protein–ligand complex using deep attention mechanism based on intermolecular interactionsExample of descriptor. There are two atom pairs between which the distance less than 12 \(\mathrm{\AA }\), and from which two descriptors can be identified. The frequencies in the protein–ligand complex are counted for all the unique descriptors in the training dataset, with the results being d. Note that OH is regarded as O, and atoms that are not specified are carbon CBack to article page