Junwei Zhang
CS Undergraduate at UCAS | Exploring Recursive Self-Improvement for AI
Hi! I am a fourth-year undergraduate majoring in Computer Science at UCAS, where I am fortunate to be advised by Prof. Fei Sun.
My research interests lie in AI agents, particularly learning from experience and recursive self-improvement (RSI). My earlier work explored hallucinations and knowledge mechanisms in LLMs.
During my second year, I explored chip design through the ysyx project. That experience sparked a lasting interest in computing systems and infrastructure, including machine learning systems (MLSys) and high-performance computing (HPC).
Beyond academics, I enjoy classical music, tinkering with Linux, and discovering new tools and projects on GitHub.
Internships & Education
Internships
Meituan Inc.
Feb. 2026 – Present
Research Intern / RSI Team
Education
University of Chinese Academy of Sciences
2023 – 2027 (Expected)
B.S. in Computer Science
GPA 3.97/4.00 | Rank 1/86
Honors and Awards
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National Scholarship (Ministry of Education of P.R. China)
2024, 2025
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Finalist, Interdisciplinary Contest in Modeling (Consortium for Mathematics and its Applications)
2025
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First Class Academic Scholarship (University of Chinese Academy of Sciences)
2024, 2025
News
| Our new preprint Strong yet Controllable LLM Abstention without Learning to Abstain is now available on arXiv! | Oct 14, 2026 |
| Our paper BaseCal: Unsupervised Confidence Calibration via Base Model Signals has been accepted to the ACL 2026 main conference! | May 23, 2026 |
| Our new preprint Beyond Reasoning: Reinforcement Learning Unlocks Parametric Knowledge in LLMs is now available on arXiv! | May 10, 2026 |
| This website is launched! 🎉 | Dec 19, 2025 |