My name is Tunyu Zhang (张焞宇), a first-year Ph.D. student in the Department of Computer Science at Rutgers University, advised by Prof.DIMITRIS N. METAXAS. Previously, I obtained my bachelor degree at the University of Science and Technology of China (USTC) in 2025.
My research interests include large language models reasoning, diffusion language models, uncertainty estimation, and efficient training of generative models.
🔥 News
- 2025.09: 🎉🎉 Our paper TokUR on Bayesian LLM reasoning was accepted to the NeurIPS 2025 Workshop FoRLM!
- 2025.08: 🎉🎉 I will join Professor Dimitris Metaxas’s group to pursue my PhD degree at Rutgers.
📝 Publications
where “*” denotes equal contribution
TokUR: Token-Level Uncertainty Estimation for Large Language Model Reasoning
Tunyu Zhang*, Haizhou Shi*, Yibin Wang, Hengyi Wang, Xiaoxiao He, Zhuowei Li, Haoxian Chen, Ligong Han, Kai Xu, Huan Zhang, Dimitris Metaxas, Hao Wang
- We propose TokUR, a framework for token-level uncertainty estimation tailored for LLM reasoning.
- TokUR introduces a low-rank stochastic perturbation mechanism to approximate predictive distributions efficiently.
- The framework enables more reliable multi-step reasoning, and provides uncertainty-aware signals for downstream tasks.
Multimodal needle in a haystack: Benchmarking long-context capability of multimodal large language models
Hengyi Wang, Haizhou Shi, Shiwei Tan, Weiyi Qin, Wenyuan Wang, Tunyu Zhang, Akshay Nambi, Tanuja Ganu, Hao Wang
- A long-context benchmark for Multi-modal LLM
Complex Networks
- Study of nonequilibrium phase transitions mechanisms in exclusive network and node model of heterogeneous assignment based on real experimental data of KIF3AC and KIF3CC motors, EPJP 2022
- Physical mechanisms of exit dynamics in microchannels of nonequilibrium transport systems, IJMP 2024
🎖 Honors and Awards
-
2022.05 Outstanding Student Scholarship (Gold Award), University of Science and Technology of China
-
2022.12 Second Prize, Asia and Pacific Mathematical Contest in Modeling (APMCM)
-
2025.06 Outstanding Undergraduate Thesis Award, University of Science and Technology of China
📖 Educations
- 2021.09 - 2025.06, Univeristy of Science and Technology of China, Hefei.
💻 Internships
- 2024.06 - 2025.08, Research Assistant at Rutgers University
- 2023.06 - 2024.05, Research Assistant at University of Hong Kong (HKU)