About Me
I am currently a 3rd-year Ph.D. student, at Department of Computer Science and Technology, Tsinghua University. My advisor is professor Guoliang Li. I am also in close cooperation with professor Xuanhe Zhou from Shanghai Jiao Tong University.
My research focuses on autonomous database systems and intelligent data analytics. First, I work on applying AI (ML, LLM) to enhance DBMS, including learned indexes, database diagnosis, and query optimization. Second, I also focus on the design of Data+AI agents capable of autonomously handling data-related tasks [see my resume].
Selected Publications (Full List)
- Data Agent: A Holistic Architecture for Orchestrating Data+ AI Ecosystems
Zhaoyan Sun, Jiayi Wang, Xinyang Zhao, Jiachi Wang, Guoliang Li
IEEE Data Engineering Bulletin (2025). In submission. [paper] - R-Bot: An LLM-based Query Rewrite System
Zhaoyan Sun, Xuanhe Zhou, Guoliang Li, Xiang Yu, Jianhua Feng, Yong Zhang
VLDB (2025). [paper] [code] - D-Bot: An LLM-Powered DBA Copilot
Zhaoyan Sun, Xuanhe Zhou, Jianming Wu, Wei Zhou, Guoliang Li
SIGMOD Demo (2025). [paper] [code] - D-bot: Database diagnosis system using large language models
Xuanhe Zhou, Guoliang Li, Zhaoyan Sun, Zhiyuan Liu, Weize Chen, Jianming Wu, Jiesi Liu, Ruohang Feng, Guoyang Zeng
VLDB (2024). [paper] [code (0.6k stars)]
BenchCouncil Top-100 Open Source Achievement - Learned Index: A Comprehensive Experimental Evaluation
Zhaoyan Sun, Xuanhe Zhou, Guoliang Li
VLDB (2023). [paper] [code]
Selected Awards
- 2022 - Excellent Graduate of Tsinghua University (top 5%)
Education
- Aug. 2022 - now, Ph.D, Dept. of Computer Science and Technology, Tsinghua University, Bejing, China
- Aug. 2018 - Jul. 2022, Undergraduate, Dept. of Computer Science and Technology, Tsinghua University, Bejing, China