CV

University of California, Berkeley

PhD student in the Department of Industrial Engineering & Operations Research.

M.S. in Industrial Engineering & Operations Research, May 2026. Advised by Prof. Ying Cui.

Nanjing University

B.S. in Mathematics and Applied Mathematics.

GPA: 4.66/5.00; WES evaluation: 3.94/4.00; ranked 1/48 in major.

University of Wisconsin-Madison

Exchange student. GPA: 4.0/4.0.

• Coursework included real analysis, complex analysis, stochastic processes, differential geometry, Lie algebra, and algebraic topology.

University of California, Berkeley

Summer Session. GPA: 4.0/4.0.

Beyond Shadow Weights: Quantization-Aware Training as Quantized-Endpoint Descent

Sheng-An Xu, Hanyang Li, Jianhao Ma, and Ying Cui. Preprint. arXiv:2609.21834.

Generalized Linear Bandits: Almost Optimal Regret with One-Pass Update

Yu-Jie Zhang, Sheng-An Xu, Peng Zhao, and Masashi Sugiyama. NeurIPS 2025. arXiv:2507.11847.

Statistical and Computational Efficiency of Non-Linear Bandits

LAMDA Group, Nanjing University. Advisor: Prof. Peng Zhao.

• Designed generalized linear bandit algorithms with one-pass online updates and efficient confidence regions based on online mirror descent.
• Used mix-loss analysis and self-concordance to sharpen regret bounds.

Optimization Based on Diffusion Models

Nanjing University. Advisor: Prof. Caihua Chen.

• Trained conditional diffusion models on optimization trajectories to generate feasible solutions for parameterized integer programs.
• Explored discrete diffusion and heuristic sampling for graph-structured optimization.

Machine Learning Engineer Intern

Nanjing Huihu Intelligence Technology Co., Ltd.

• Built a streaming speaker-separation and subtitle pipeline, applying accelerated proximal gradient methods to audio recovery.
• Applied optical flow, SlowFast, and YOLOv10 to video analysis, achieving over 80% scenario-classification accuracy.

• Outstanding Graduate of Nanjing University.
• Jiangsu Province Government Scholarship for Overseas Study for College Students.

• Guo-Xie-Birong Scholarship, highest honor in the department.
• Special Scholarship of Basic Sciences, Nanjing University.

• Bailu Scholarship, Nanjing University.
• Meritorious Prize, American Mathematical Contest in Modeling.
• Outstanding Leader, Tian-Jian Voluntary Association, Nanjing University.

• National Scholarship for Undergraduate Student, China.
• Excellent Freshman Student, Nanjing University.