I’m a second-year master student majored in Computer Science in Shanghai Jiao Tong University, under the supervision of Prof. Chihao Zhang. From September 2023 to July 2025, the range of my research interest most lies in multi-armed bandits (MAB) problem and some of its variants, such as combinatorial mab and mab under memory constraints. Furthermore, I read a series of theoretical works about online learning including reinforcement learning and gain a broad range of fundamental knowledge. From the course “Topics in Modern Algorithms” offered by my instructor, I also have learnt some basic knowledge about high-dimensional probability and stochastic differential equation. I am always eager to explore new areas and am fully prepared to embrace fresh challenges.

🏫 Educations

Shanghai Jiao Tong University

B.Eng. in Computer Science and EngineeringSeptember 2020 - June 2024

GPA 90.77/100 (or 3.90/4.3), Rank 10/105
CET6: 604 (December 2021)

Shanghai Jiao Tong University

MA.Eng. in Computer Science and EngineeringSeptember 2024 - now

🔥 News

May 2025: 🍾🍾 Our work is accepted by COCOON 2025.

📝 Publications

Understanding Memory-Regret Trade-Off for Streaming Stochastic Multi-Armed Bandits.
Yuchen He, Zichun Ye, Chihao Zhang.
In Proceedings of the ACM-SIAM Symposium on Discrete Algorithms (SODA 2025).
Tight Gap-Dependent Memory-Regret Trade-Off for Single-Pass Streaming Stochastic Multi-Armed Bandits.
Zichun Ye, Chihao Zhang, Jiahao Zhao.
In International Computing and Combinatorics Conference (COCOON 2025).
Near-Optimal Regret for Efficient Stochastic Combinatorial Semi-Bandits.
Zichun Ye, Runqi Wang, Xutong Liu, Shuai Li.
In submission.

👨‍🔬 Experiences

– Teaching Assistant

CS3958: Topics in Modern Algorithms, Fall 2023
with Houshuang Chen, instructed by Chihao Zhang.
CS3936: Topics in Modern Algorithms, Fall 2024
instructed by Chihao Zhang.

💻 Skills

Programming Languages: C++, Python.
Technical Skills: Qt(software), MySQL(database).

🎖 Honors and Awards