Author

Yegang Lyu

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#artificial intelligence Preprint Oct 2026

SAGE: Semantic Anchor-Guided Evolution for Grounded Medical QA Data Synthesis

Developing reliable models for clinical tasks, such as Medical Question Answering (QA), is severely constrained by the limited availability of high-quality, expert-annotated training data. This challenge is exacerbated by stringent privacy requirements and the impracticality of utilizing large open-source corpora or pr...

Chuan Li, Chengyu Wang, Cen Chen et al. · 0 citations

Open access Jul 2026

SPIMP-RAG: structure-prior injected message passing for low-budget triple retrieval in LLM-based knowledge graph question answering

SPIMP-RAG is proposed, a coarse-to-fine triple retrieval approach whose key component is Structure-Prior Injected Message Passing (SPIMP), a fine-stage reranker that injects Directional Distance Encoding into relation-aware message passing and supports the effectiveness of structure-aware fine reranking for compact evi...

Jun Chen, Zhi-Jun Xie, Rui Wang et al. · Journal of King Saud Univers... · 0 citations