About Me
I am a Ph.D. student in the EECS department at UC Berkeley advised by Professor Dawn Song. Before joining UC Berkeley, I received my bachelor’s degree from ACM Honors Class, Shanghai Jiao Tong University. I am a member of Berkeley Center for Responsible, Decentralized Intelligence (RDI), Initiative for Cryptocurrencies & Contracts Lab (IC3), and Berkeley Artificial Intelligence Research (BAIR) Lab.
- Research Interest: I am broadly interested in computer security, systems, and machine learning, especially building systems that enable secure and privacy-preserving data processing or solve real-world security problems.
News
- Aug 2025: Our AgentCTF Competition has been accepted by IEEE SaTML 2026.
- Mar 2025: “FHE-based SQL aggregation across millions of records within a minute.” Check out our paper accepted to VLDB 2025.
- Jan 2024: Presenting on Decentralized LLM serving at IC3 Winter Retreat.
- Jul 2023: Honored to be supported by the JP Morgan Chase PhD Fellowship 2023.
Publications
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Measuring Agents in Production [pdf]
Melissa Z Pan, Negar Arabzadeh, Riccardo Cogo, Yuxuan Zhu, Alexander Xiong, Lakshya A Agrawal, Huanzhi Mao, Emma Shen, Sid Pallerla, Liana Patel, Shu Liu, Tianneng Shi, Xiaoyuan Liu, Jared Quincy Davis, Emmanuele Lacavalla, Alessandro Basile, Shuyi Yang, Paul Castro, Daniel Kang, Joseph E Gonzalez, Koushik Sen, Dawn Song, Ion Stoica, Matei Zaharia, Marquita Ellis
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Can LLMs Ask Good Questions? [pdf]
Yueheng Zhang, Xiaoyuan Liu, Yiyou Sun, Atheer Alharbi, Hend Alzahrani, Basel Alomair, Dawn Song
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Xiaoyuan Liu, Ni Trieu, Trinabh Gupta, Ishtiyaque Ahmad, Dawn Song
[VLDB 2025] -
ThreatKG: An AI-Powered System for Automated Open-Source Cyber Threat Intelligence Gathering and Management [pdf]
Peng Gao*, Xiaoyuan Liu* (equal contribution), Edward Choi, Sibo Ma, Xinyu Yang, Dawn Song
[LAMPS 2024] -
Ratel: MPC-extensions for Smart Contracts [pdf]
Yunqi Li, Kyle Soska, Zhen Huang, Sylvain Bellemare, Mikerah Quintyne-Collins, Lun Wang, Xiaoyuan Liu, Dawn Song, Andrew Miller
[Asia CCS 2024] -
Evaluating Large Language Models in an Emerging Domain: A Pilot Study in Decentralized Finance [pdf]
Joshua Carter Pearlson, Xiaoyuan Liu, Chengsong Huang, Kripa Ann George, Dawn Song, Chenguang Wang
[ICLR 2024 Workshop] -
Effective and Efficient Federated Tree Learning on Hybrid Data [pdf]
Qinbin Li, Chulin Xie, Xiaojun Xu, Xiaoyuan Liu, Ce Zhang, Bo Li, Bingsheng He, Dawn Song
[ICLR 2024] -
Lessons Learned: Surveying the Practicality of Differential Privacy in the Industry [pdf]
Gonzalo Munilla Garrido, Xiaoyuan Liu, Florian Matthes, Dawn Song
[PETS 2023] -
UniFed: A Benchmark for Federated Learning Frameworks [pdf]
Xiaoyuan Liu, Tianneng Shi, Chulin Xie, Qinbin Li, Kangping Hu, Haoyu Kim, Xiaojun Xu, Bo Li, Dawn Song
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Peng Gao*, Xiaoyuan Liu* (equal contribution), Edward Choi, Bhavna Soman, Chinmaya Mishra, Kate Farris, Dawn Song
[SIGMOD 2021 demo] -
Enabling Efficient Cyber Threat Hunting With Cyber Threat Intelligence [pdf]
Peng Gao, Fei Shao, Xiaoyuan Liu, Xusheng Xiao, Zheng Qin, Fengyuan Xu, Prateek Mittal, Sanjeev R Kulkarni, Dawn Song
[ICDE 2021] -
A System for Efficiently Hunting for Cyber Threats in Computer Systems Using Threat Intelligence [pdf] [video]
Peng Gao, Fei Shao, Xiaoyuan Liu, Xusheng Xiao, Haoyuan Liu, Zheng Qin, Fengyuan Xu, Prateek Mittal, Sanjeev R Kulkarni, Dawn Song
[ICDE 2021 demo] -
BeeTrace: A Unified Platform for Secure Contact Tracing that Breaks Data Silos [pdf]
Xiaoyuan Liu, Ni Trieu, Evgenios M Kornaropoulos, Dawn Song
[IEEE Data Engineering Bulletin 2020] -
Distributed Structured Actor-Critic Reinforcement Learning for Universal Dialogue Management [pdf]
Zhi Chen, Lu Chen, Xiaoyuan Liu, Kai Yu
[IEEE/ACM Transactions on Audio, Speech, and Language Processing] -
Dan Hendrycks*, Xiaoyuan Liu* (equal contribution), Eric Wallace, Adam Dziedzic, Rishabh Krishnan, Dawn Song
[ACL 2020] -
Structured Hierarchical Dialogue Policy with Graph Neural Networks
Zhi Chen, Xiaoyuan Liu, Lu Chen, Kai Yu
Professional Services
- Program Committee - COLING 2025
- Program Committee - NIPS 2024
- Program Committee - FLSys (MLSys workshop) 2023
- ERC, Session Chair (Correctness and Security) - MLSys 2023
- Program Committee - ACL 2023
- Program Committee - EMNLP 2023, 2022, 2021
- Program Committee - CCS 2022
- Coordination Committee - Responsible Data Summit 2020
Selected Projects
- AgentBeats [Overview] [Competition]
- CoLearn/CoLink: A Generic Programming Framework for Federated and Decentralized Data Science [Homepage] [Talk at NeurIPS 2022 workshop]
- MPC4F (Multi-Party Computation for Fairness) [News (Meta AI)] [News (Oasis Lab)]
Education
UC Berkeley
Ph.D. Student, EECS
2020 - 2026 (Expected)
Shanghai Jiao Tong University
Honors Bachelor of Engineering (B.Eng. Hons) in Computer Science
2016 - 2020
Honors
- RDI Frontier Fellowship [2024]
- JP Morgan Chase PhD Fellowship [2023]
- Berkeley EECS Department Fellowship [2020]
- Shanghai Excellent Graduate [2020]
- Outstanding Student Cadre (Top 0.8%, SJTU) [2018]
- Academic Excellence Scholarship [2017, 2018, 2019]
- Zhiyuan Honorary Scholarship [2016, 2017, 2018, 2019]
- KoGuan Encouragement Scholarship (Top 0.3%, SJTU) [2017]
- The 32nd China’s National Olympiad in Informatics (NOI) Silver Medal [2015]
Misc
Materials
Teaching Experience
- Teaching Assistant Entrepreneurship In Web3 - Fall 2022
- Teaching Assistant Decentralized Finance - Fall 2021
- Student Instructor Principle and Practice of Computer Algorithms - Summer 2018
- Lead Teaching Assistant Data Structures - Spring 2018
- Lead Teaching Assistant C++ Programming (A) - Fall 2017
Activities
- Student Council Vice President, Zhiyuan College, SJTU - 2018
- Head of the Department of Culture and Sports, Student Union, Zhiyuan College, SJTU - 2017