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Di Hu

2 papers indexed

arxivcs.ROcs.AI2026-07-10

Robo-ValueRL: Reliable Value Estimation for Offline-to-Online Reinforcement Learning

Wenke Xia, Pei Ren, Wenbo Yu, Yizhuo Zhang, Jifan Li, Yixue Zhang, et al.

Offline-to-online reinforcement learning is promising for generalizable robotic manipulation, yet its full-stack complexity obscures reproduction and diagnosis. Within such systems, value estimation plays a central role in prioritizing heterogeneous data for policy improvement. D…

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arxivcs.CVcs.AI2026-07-07

Segmentation before Answering: Pixel Grounding for MLLM Visual Reasoning

Yake Wei, Yuan Wang, Fengyun Rao, Jing Lyu, Di Hu

Recent advancements in Multimodal Large Language Models (MLLMs) have evolved from static perception to interleaved visual-language reasoning, often referred to as ``thinking with images''. A basic operation in this reasoning process is to zoom in on regions of interest (often rep…

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