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Journal of Chemical Information and Modeling

SSE-DDI: Selective Substructure Encoding with Bond-Centered Molecular Representations for Drug-Drug Interaction Prediction

This work proposes SSE-DDI, a framework that performs selective substructure encoding in molecular line graphs with chemical bonds as the fundamental representation units, complemented by an edge-fusion graph transformer and refined SMILES-derived Morgan-fingerprint similarity profiles; on DrugBank and Twosides under transductive and inductive settings it outperforms representative baselines across multiple metrics, with ablation and visualization analyses supporting the effectiveness of selective encoding and highlighting DDI-relevant molecular substructures.