Author

Xin-Tong Hu

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Open access Sep 2026

PoP-RAG: Holistic Query Planning for GraphRAG

Graph-based retrieval-augmented generation (GraphRAG) leverages knowledge graphs to provide context for large language models (LLMs) to generate quality responses. Yet existing GraphRAG methods suffer from two drawbacks: connecting each entity to all passages that mention the entity causes one-to-many entity-passage ma...

Xin-Tong Hu, Qi-Ming Zeng, Yu-Hao Lin et al. · Transactions on Graph Intell... · 0 citations

#artificial intelligence May 2026

FineVLA: Fine-Grained Instruction Alignment for Steerable Vision-Language-Action Policies

FineVLA, an open framework for action-aligned fine-grained VLA supervision, is introduced and the largest real-world gains appear on pose, color, and approach direction, and approach direction--factors where goal-level instructions provide no guidance.

Xin-Tong Hu, Xuhong Huang, Jin-Yu Zhang et al. · arXiv.org · 4 citations