Junhao Chen



I am a senior undergraduate at Tsinghua University and an incoming PhD student at XLANG Lab, HKU, supervised by Prof. Tao Yu. I have had the privilege of being mentored by Professors Zhiyuan Liu and Yulia Tsvetkov throughout my undergraduate years. I am currently engaged in VLA research.

My research interests lie in VLA (mostly simulation—robots are expensive and I am not :-D), multimodal learning, and RL.

Outside of academics, I enjoy playing basketball, jogging, and engaging in board games.

Email  /  CV  /  Scholar

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Select Publications


MADFormer: Mixed Autoregressive and Diffusion Transformers for Continuous Image Generation
Junhao Chen, Yulia Tsvetkov, Xiaochuang Han
ICLR, 2026
arXiv / GitHub

States Hidden in Hidden States: LLMs Emerge Discrete State Representations Implicitly
Junhao Chen, Shengding Hu, Zhiyuan Liu*, Maosong Sun*
Preprint
arXiv

InfiniteBench: Extending Long Context Evaluation Beyond 100K Tokens
Xinrong Zhang, Yingfa Chen, Shengding Hu, Zihang Xu, Junhao Chen, Moo Khai Hao, Xu Han, Zhen Leng Thai, Shuo Wang, Zhiyuan Liu*, Maosong Sun*
ACL, 2024
arXiv / GitHub

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