Author

Sungsu Lim

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Book Open access Jul 2026

StAR: Adaptive Structure-Aware Reranking for Semantic–Structural Alignment in GraphRAG

StAR (Structure-Aware Reranking), a plug-and-play reranking module that injects hyperbolic structural similarity into GraphRAG ranking, suggests that restoring structural faithfulness through hyperbolic structural scoring improves ranking consistency for multi-hop QA.

Junghyun Oh, Sung-Su Lim · Annual International ACM SIG... · 0 citations

#machine learning Preprint Aug 2026

Who Should Teach? Confidence-Aware Dual-Teacher Learning for Few-Shot Node Classification on Text-Attributed Graphs

This work proposes CoTeach, a Confidence-aware dual-teacher learning framework that dynamically selects the more reliable teacher for each node, and demonstrates that CoTeach consistently improves few-shot node classification performance while reducing unnecessary LLM utilization and associated monetary costs.

Hojin Kim, Sujin Yoon, Sung-Su Lim et al. · 0 citations