CV

Education

• Ph.D. in Electronic Information, School of Computer Science, Wuhan University, China. Advisors: Prof. Sheng Wang and Prof. Zhiyong Peng, Totem Database Lab.
• M.A. in Statistics, Washington University in St. Louis, USA.
• Zhangzhidong Class, Huazhong Agricultural University and Wuhan University, China.

• 电子信息博士，武汉大学计算机学院，中国。导师：王胜教授、彭智勇教授，图腾数据库实验室。
• 统计学硕士，圣路易斯华盛顿大学，美国。
• 张之洞班，华中农业大学与武汉大学，中国。

Research Interests

• Multi-agent systems and agentic data management.
• Large language model infrastructure, inference systems, and efficient serving.
• Hybrid vector search, vector databases, and approximate nearest neighbor search.
• Scalable indexing, clustering, and machine learning for database systems.

• 多智能体系统与智能体数据管理。
• 大语言模型基础设施、推理系统与高效服务。
• 混合向量检索、向量数据库与近似近邻搜索。
• 面向数据库系统的可扩展索引、聚类与机器学习。

Publications

1. Highly-Efficient Large-Scale k-means with Individual Fairness.
   Shengkun Zhu, Jinshan Zeng, Yuan Sun, Sheng Wang, Yiming Wang, Yushuai Ji, Feiping Nie, Xiaodong Li, and Zhiyong Peng.
   PVLDB 2026, 19(5): 808-821. CCF-A
2. Graph-centric Cross-model Data Integration and Analytics in a Unified Multi-model Database.
   Zepeng Liu, Sheng Wang, Shixun Huang, Hailang Qiu, Yuwei Peng, Jiale Feng, Shunan Liao, Yushuai Ji, and Zhiyong Peng.
   arXiv:2603.01598, 2026. Preprint
3. Updatable Balanced Index for Fast On-device Search with Auto-selection Model.
   Yushuai Ji, Sheng Wang, Zhiyu Chen, Yuan Sun, and Zhiyong Peng.
   ICDE 2026, to appear. CCF-A
4. Federated and Balanced Clustering for High-dimensional Data.
   Yushuai Ji, Shengkun Zhu, Shixun Huang, Zepeng Liu, Sheng Wang, and Zhiyong Peng.
   VLDB 2025, 18(11): 4032-4044. CCF-A
5. On Simplifying Large-Scale Spatial Vectors: Fast, Memory-Efficient, and Cost-Predictable k-means.
   Yushuai Ji, Zepeng Liu, Sheng Wang, Yuan Sun, and Zhiyong Peng.
   ICDE 2025, 863-876. CCF-A

Work Experience

• CurrentPostdoctoral Researcher, Department of Computer Science, Hong Kong Baptist University, Hong Kong, China. Advisor: Prof. Jianliang Xu.
• Apr. - Jul. 2021Software Engineer, Alipay, China.
• Jan. - Apr. 2021Intern, Best Buy, USA.

• 目前博士后研究员，香港浸会大学计算机科学系，中国香港。导师：徐建良教授。
• 2021年4月 - 7月软件工程师，支付宝，中国。
• 2021年1月 - 4月实习生，Best Buy，美国。

Contact

Email: csysji [at] hkbu.edu.hk
Google Scholar: Yushuai Ji
GitHub: YushuaiJi