LightKG, a simplified GNN recommender with scalar relation weights and an efficient contrastive loss, outperforms 12 knowledge-graph-aware baselines on four datasets, especially under sparse interactions, while cutting training time.
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LightKG: Efficient Knowledge-Aware Recommendations with Simplified GNN Architecture
LightKG, a simplified GNN recommender with scalar relation weights and an efficient contrastive loss, outperforms 12 knowledge-graph-aware baselines on four datasets, especially under sparse interactions, while cutting training time.