Yijia Fan

Incoming Ph.D. Student @ CUHK MMLab | Undergraduate @ Sun Yat-sen University

prof_pic.jpeg

School of Computer Science and Engineering

Sun Yat-sen University

Guangzhou, China

I am Yijia Fan, a fourth-year undergraduate in Computer Science and Technology at Sun Yat-sen University, supervised by Prof. Keze Wang. I will join MMLab at The Chinese University of Hong Kong as a Ph.D. student in Fall 2027, advised by Prof. Xiangyu Yue.

I am a research intern at Microsoft Research Asia – Visual Computing Group, working on video generation, unified multimodal models, agent skills, and recursive self-improvement (self-evolving agents). I was a research intern with the SenseNova team at SenseTime, where I worked on native reflection in unified models with reinforcement learning (UMM-Reflection). I am currently also interning at an embodied AI startup, building embodied agent systems. I have previously interned at the Human Cyber-Physical Intelligence Lab at Sun Yat-sen University.

My research interests include unified multimodal models, visual language models, reinforcement learning, self-evolving agentic systems, and embodied agent systems. I am particularly interested in aligning visual perception with complex reasoning and exploring unified generation toward a world model that integrates perception, reasoning, and creation.

Contact: fanyj28@mail2.sysu.edu.cn

news

Sep 28, 2026 Released UMM-Reflection (arXiv, code): learning native reflection in unified models with interleaved reinforcement learning.
Sep 01, 2026 Started research internship at an embodied AI startup, building embodied agent systems.
Aug 05, 2026 Released Argus, a general-purpose agentic reasoning runtime for long-horizon tasks.
Jun 28, 2026 Released Resource2Skill (code), distilling executable agent skills from tutorial videos and other human-created multimodal resources.
Jun 01, 2026 Started research internship with the SenseNova team at SenseTime.

selected publications

  1. arXiv
    Learning Native Reflection in Unified Models with Interleaved Reinforcement Learning
    Yijia Fan, Ziqi Huang, Zhongang Cai, and 5 more authors
    arXiv preprint arXiv:2609.35767, 2026
  2. arXiv
    Resource2Skill: Distilling Executable Agent Skills from Human-Created Multimodal Resources
    Yijia Fan, Zonglin Di, Zimo Wen, and 8 more authors
    arXiv preprint arXiv:2606.29538, 2026
  3. arXiv
    Argus: A General-Purpose Agentic Reasoning Runtime for Long-Horizon Tasks
    Boxiu Li, Zimo Wen, Yijia Fan, and 24 more authors
    arXiv preprint arXiv:2608.05144, 2026