# Leveraging hierarchy-aware diffusion model and knowledge-enhanced contrastive learning for recommendation

> Research article (Knowledge and Information Systems, 2026) · cited 12× · AI/ML

**Wikidata**: [openalex:W7118165812](https://www.wikidata.org/wiki/openalex:W7118165812)  
**Source**: https://4ort.xyz/entity/leveraging-hierarchy-aware-diffusion-model-and-knowledge-enhanced-contrastive-learning-for-recommendation