Juzheng Zhang

3rd-year PhD student in Computer Science

Juzheng Zhang's Profile Image

I am a 3rd-year PhD student in Computer Science at the University of Maryland, College Park, advised by Prof. Tom Goldstein. My research focuses on post-training for LLMs and agentic systems, with interests in reinforcement learning, continual learning, and self-improvement. I am particularly interested in how models and agents can continually improve through interaction with minimal human intervention. Before joining UMD, I graduated with honors from Shanghai Jiao Tong University, where I earned a Bachelor’s degree in Information Engineering.

I’m open to research internship opportunities and collaborations. Feel free to reach out! 🤝

Selected Work

  1. arXiv
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    Don’t Mask the Environment: Observation Supervision Changes How Agents Explore Under RL
    Juzheng Zhang, Disha Makhija, Manoj Ghuhan Arivazhagan, Vinayshekhar Bannihatti Kumar, and
    arXiv preprint arXiv:2609.20715, 2026
    PAPER Thread
  2. Blog Post
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    Learning from Mixed Rollouts: Logit Fusion as a Bridge Between Imitation and Exploration
    Juzheng Zhang, Abhimanyu Hans, John Kirchenbauer, Micah Goldblum, and
    Notion Blog Post, 2026
    Blog Code Thread
  3. COLM
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    LoRI: Reducing Cross-Task Interference in Multi-Task Low-Rank Adaptation
    Juzheng Zhang, Jiacheng You, Ashwinee Panda, and Tom Goldstein
    Conference on Language Modeling, 2025
    PAPER Code Model Thread
  4. KDD
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    Heuristic Learning with Graph Neural Networks: A Unified Framework for Link Prediction
    Juzheng Zhang, Lanning Wei, Zhen Xu, and Quanming Yao
    In Proceedings of the 30th ACM SIGKDD Conference on Knowledge Discovery and Data Mining, 2024
    PAPER Code
  5. arXiv
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    UniMoT: Unified Molecule-Text Language Model with Discrete Token Representation
    Juzheng Zhang, Yatao Bian, Yongqiang Chen, and Quanming Yao
    arXiv preprint arXiv:2408.00863, 2024
    PAPER Website

Honors and Awards

  • Dean’s Fellowship, University of Maryland, 2024
  • Outstanding Graduate, Shanghai Jiao Tong University, 2023
  • Shanghai Government Scholarship, Shanghai Government, 2021
  • Meritorious Winner, International Mathematical Contest in Modeling, 2021

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