الباحثون

Jiahua Bao

المنشورات 2

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Found but Not Read: When Extracted Text Closes the Retrieval-Reading Gap in Document Vision-Language Models

Qingtao Xia, Siyao Cheng, Jiahua Bao وآخرون · 2026

Retrieval-augmented document question answering assumes that once the right page is found, a vision-language model (VLM) can read it. We show that this assumption often fails, leaving a retrieval-reading gap: evidence found but not used. A paired protocol isolates this gap by comparing answers from the retrieved page i …

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Teacher-Student Gaps Are Not Enough: Outcome-Guided On-Policy Distillation for Multi-Turn Autonomous Agents

Tong Zhang, Zhou Liu, Yihao Liu وآخرون · 2026

On-policy distillation (OPD) trains a student on its own trajectories with dense teacher supervision. Recent work on OPD for multi-turn autonomous agents often treats large teacher-student token-level distributional gaps as promising intervention points, linking larger gaps to a greater need for correction. Yet, our em …

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