# PHGL-DDI: A pre-training based hierarchical graph learning framework for drug-drug interaction prediction

> Research article (Expert Systems with Applications, 2025) · cited 11× · AI/ML

**Wikidata**: [openalex:W4406278500](https://www.wikidata.org/wiki/openalex:W4406278500)  
**Source**: https://4ort.xyz/entity/phgl-ddi-a-pre-training-based-hierarchical-graph-learning-framework-for-drug-drug-interaction-prediction