Hi👋! I am Zirui Liu(刘梓睿), a second-year Ph.D student at University of Massachusetts, Amherst, advised by Prof. Shiqing Ma. I also work closely with Prof. Mengfan Xu.

Before my enrollment into UMass, I received my M.S in Computer Science from University of California, Irvine in March, 2025.

I received my B.Eng in Computer Science from Shanghai Jiao Tong University in June, 2023.

My current research lies in Security for Large Language Model, Agentic systems and Reinforcement Learning.

📝 Publications

• Robustness-Aware Evaluation and Enhancement of Mutation-Based Fuzzing for Bug Discovery

  Zirui Liu, Mengfan Xu, Juan Zhai, Shiqing Ma, Barry Nelson

  Preprint, 2026

• CAROL: Context-Aware Online Learning for Fuzzer Scheduling

  Zirui Liu, Mengfan Xu, Juan Zhai, Shenglong Yao, Shiqing Ma

  Preprint, 2026

• Multi-Intersection Management for Connected Autonomous Vehicles by Reinforcement Learning

  Haiming Jin, Yifei Wei, Zhaoxing Yang, Zirui Liu, Guiyun Fan

  2023 IEEE 43rd International Conference on Distributed Computing Systems (ICDCS)

🎖 Honors and Awards

• Zhiyuan Honors Bachelor of Engineering of SJTU June 2023
• Zhiyuan Honors Scholarship(100 out of 5,000) Oct. 2019

📖 Educations

• 2025.09 - Present, Ph.D Student, Manning College of Information & Computer Sciences, University of Massachusetts, Amherst
• 2023.09 - 2025.03, M.S, Department of Computer Science, University of California, Irvine
• 2019.09 - 2023.06, B.E, Department of Computer Science and Engineering, Shanghai Jiao Tong University

📚 Teaching

• Teaching Assistant, COMPSCI 589 Machine Learning, University of Massachusetts, Amherst
• Teaching Assistant, COMPSCI 520 Theory and Practice of Software Engineering, University of Massachusetts, Amherst
• Teaching Assistant, CICS 210 Data Structures, University of Massachusetts, Amherst

💻 Internships

• 2022.06 - 2022.08, Alibaba, Hangzhou, China

♟️ Miscellaneous

• I have been a 5-dan(段) amateur Go(围棋) player in China since 11.