UniDoc-RL: Coarse-to-Fine Visual RAG with Hierarchical Actions and Dense Rewards

Fuente: arXiv
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Bibliographic Details
Main Authors: Wang, Jun, Tan, Shuo, Sun, Zelong, Gu, Tiancheng, Zhao, Yongle, Feng, Ziyong, Yang, Kaicheng, Lu, Zhiwu
Format: Preprint
Published: 2026
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