Author

Meixing Shi

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Preprint Aug 2026

MedPixel: A Unified Pixel-Language Model for Medical Reasoning and Segmentation

This work presents MedPixel, a unified medical pixel-language model built around a shared language--mask interface that achieves strong performance in both pixel-level prediction and response generation, together with effective zero-shot transfer to external grounding benchmarks and robustness to imperfect spatial prom...

Haoyu Yang, Meixing Shi, Zeng-Jie Chen et al. · 0 citations

Preprint Aug 2026

REVEAL: A Rubric-Guided Agent for Explicit Evidence Sufficiency Verificationin Long-Video Question Answering

ReVEAL consistently outperforms both closed-source and open-source state-of-the-art methods across extensive experiments and shows that explicitly verifying evidence sufficiency, rather than stopping at semantic relevance, retrieves the decisive clues that prior methods miss and yields more reliable long-video reasonin...

C.J. Yan, Yang Zhou, Meixing Shi et al. · 1 citation

Jul 2026

Continual Video-MLLM Adaptation over Evolving Domains

DAER maintains domain-isolated lightweight experts while keeping the pretrained Video-MLLM backbone frozen, thereby decoupling domain-specific adaptation from the general multimodal knowledge of the pretrained model, and introduces adaptive domain merging to improve parameter scalability and a two-stage optimization st...

Rui Cheng, Meixing Shi, Yuxiang Cai et al. · arXiv.org · 0 citations