Improving Range Scan Performance in LSM-trees with Group Caching.
Hengrui Wang, Jiaoyi Zhang, Jiansheng Qiu, Fangzhou Yuan, and Huanchen Zhang.
Proceedings of the ACM on Management of Data (SIGMOD 2026).
Jiaoyi Zhang
Assistant Professor, School of Data Science and Engineering, East China Normal University
I am an Assistant Professor at the School of Data Science and Engineering, East China Normal University. My research focuses on database systems, indexing structures, AI infrastructure, and data security. I received my Ph.D. in Computer Science and Technology from the Institute for Interdisciplinary Information Sciences, Tsinghua University, where I was very fortunate to be advised by Prof. Huanchen Zhang. Before that, I obtained my bachelor's degree from Nankai University.
Recruiting
I am looking for highly self-motivated Ph.D. students, Master students, and research interns (RAs). If you are interested in databases and systems research, please feel free to reach out.
Selected Publications
Femur: A Flexible Framework for Fast and Secure Querying from Public Key-Value Store.
Jiaoyi Zhang, Liqiang Peng, Mo Sha, Weiran Liu, Xiang Li, Sheng Wang, Feifei Li, Mingyu Gao, and Huanchen Zhang.
Proceedings of the ACM on Management of Data (SIGMOD 2025). [Code]
Making In-Memory Learned Indexes Efficient on Disk.
Jiaoyi Zhang, Kai Su, and Huanchen Zhang.
Proceedings of the ACM on Management of Data (SIGMOD 2024). [Code]
CARMI: A Cache-Aware Learned Index with a Cost-based Construction Algorithm.
Jiaoyi Zhang and Yihan Gao.
Proceedings of the VLDB Endowment (VLDB 2022). [Code]
Education
Ph.D. in Computer Science and Technology, Tsinghua University
Institute for Interdisciplinary Information Sciences.
Advisor: Prof. Huanchen Zhang.
B.S. in Computer Science and Technology, Nankai University
College of Computer Science.
Experience
Assistant Professor, East China Normal University
School of Data Science and Engineering.
Research Intern, Alibaba Group
Database and Storage Lab, Alibaba Cloud Intelligence.
Mentor: Dr. Sheng Wang.
Teaching
Data Management System
East China Normal University.
Contemporary Data Management System
East China Normal University.
Data Mining, Teaching Assistant
Tsinghua University.
Service
Editorial Committee Member for Database and Big Data Terminology
External reviewer for SIGMOD, VLDB, and ICDE
Reviewer for TKDE
Selected Awards & Honors
ACM SIGMOD China Doctoral Dissertation Award.
Excellent Comprehensive Scholarship of Tsinghua University (Top 12%).
Excellent Comprehensive Scholarship of IIIS.
Outstanding Graduate, Nankai University (Top 4%).
National Scholarship (Top 1%).