Dr. Huajun He is currently a Distinguished Associate Research Fellow at Southwest Jiaotong University (SWJTU), China. Prior to his appointment at SWJTU, he was a Research Scientist at Tencent and held a research internship at JD Intelligent Cities Research. His research interests include Urban Computing, Vector Indexing, LLMs, Data Agentic Systems, Memory Systems, Spatio-Temporal Data Management, and Distributed Systems.

Education

• Ph.D in SWJTU University, 2020-2024
• M.S. in SWJTU University, 2018-2020
• B.S. in SWJTU University, 2014-2018

Publications

DiST: Efficient Distributed Spatio-Temporal Clustering With Automatic Parameter Optimization
Li, J., Gou, S., Li, R., **He, H**., Li, W., & Zheng, Y.
TKDE, 2025-09-09 00:00:00 +0800
[PDF][Paper Link]

Learning-Based Distributed Spatio-Temporal 𝑘 Nearest Neighbors Join
Li, R., Li, J., Zhou, M., Wang, R., **He, H**., Chen, C., ... & Zheng, Y.
Big Data, 2024-08-14 00:00:00 +0800
[PDF][Paper Link]

An Efficient System for Large-scale Collaborative Tasks in Government
Lulu Wang, Huajun He, Zheyi Pan, Jie Bao, Yu Zheng. An Efficient System for Large-scale Collaborative Tasks in Government[J]//Human-Centric Intelligent Systems. 2024
HCIN, 2024-06-10 00:00:00 +0800
[PDF][Paper Link]

TMan: A High-Performance Trajectory Data Management System Based on Key-value
Huajun He, Zihang Xu, Ruiyuan Li, Jie Bao, Tianrui Li, Yu Zheng. TraSS: Efficient TMan: A High-Performance Trajectory Data Management System Based on Key-value Stores[C]//2024 IEEE 40th International Conference on Data Engineering
ICDE, 2024-05-12 00:00:00 +0800
[PDF][Paper Link]

面向政务协同的访问控制模型
赵大燕，何华均，李宇平，张钧波，李天瑞，郑宇. 面向政务协同的访问控制模型 [J]. 计算机应用. 2024
计算机应用, 2024-03-10 00:00:00 +0800
[PDF][Paper Link]

面向政府大规模协同任务的时空数据管理和分析研究
王璐璐、何华均、潘哲逸、鲍捷、郑宇. 面向政府大规模协同任务的时空数据管理和分析研究.
NDBC, 2023-07-31 00:00:00 +0800
[PDF][Paper Link]

TraSS: Efficient Trajectory Similarity Search Based on Key-Value Data Stores
Huajun He, Ruiyuan Li, Sijie Ruan, Tianfu He, Jie Bao, Tianrui Li, Yu Zheng. TraSS: Efficient Trajectory Similarity Search Based on Key-Value DataStores[C]//2022 IEEE 38th International Conference on Data Engineering
ICDE, 2022-03-23 00:00:00 +0800
[PDF][Paper Link]

Distributed Spatio-Temporal k Nearest Neighbors Join
Li R, Wang R, Liu J, He H, et al. Distributed Spatio-Temporal k Nearest Neighbors Join[C]//Proceedings of the 29th International Conference on Advances in Geographic Information Systems. 2021: 435-445.
SIGSPATIAL, 2021-08-06 00:00:00 +0800
[PDF][Paper Link]

SALON: a universal stay point-based location analysis platform
Hu Y, Ruan S, Ni Y, He H, et al. SALON: a universal stay point-based location analysis platform[C]//Proceedings of the 29th International Conference on Advances in Geographic Information Systems. 2021: 407-410. Best Demo Paper Award!
SIGSPATIAL, 2021-08-06 00:00:00 +0800
[PDF][Paper Link]

POI Alias Discovery in Delivery Addresses using User Locations
He T, Chen G, Meng C, He H, et al. POI Alias Discovery in Delivery Addresses using User Locations[C]//Proceedings of the 29th International Conference on Advances in Geographic Information Systems. 2021: 225-228.
SIGSPATIAL, 2021-08-06 00:00:00 +0800
[PDF][Paper Link]

JUST-Traj: A Distributed and Holistic Trajectory Data Management System
He H, Li R, Bao J, et al. JUST-Traj: A Distributed and Holistic Trajectory Data Management System[C]//Proceedings of the 29th International Conference on Advances in Geographic Information Systems. 2021: 403-406.
SIGSPATIAL, 2021-08-06 00:00:00 +0800
[PDF][Paper Link]

TrajMesa: a distributed NoSQL-based trajectory data management system
Li R, He H, Wang R, et al. TrajMesa: a distributed NoSQL-based trajectory data management system[J]. IEEE Transactions on Knowledge and Data Engineering, 2021.
TKDE, 2021-05-13 00:00:00 +0800
[PDF][Paper Link]

面向海量空间数据的分布式距离连接算法
王如斌, 李瑞远, 何华均, 等. 面向海量空间数据的分布式距离连接算法[J]. 计算机科学, 49
计算机科学, 2021-05-12 00:00:00 +0800
[PDF][Paper Link]

Discovering real-time reachable area using trajectory connections
Li R, Bao J, He H, et al. Discovering real-time reachable area using trajectory connections[C]//International Conference on Database Systems for Advanced Applications. Springer, Cham, 2020: 36-53.
DASFAA, 2020-09-24 00:00:00 +0800
[PDF][Paper Link]

Trajmesa: A distributed nosql storage engine for big trajectory data
Li R, He H, Wang R, et al. Trajmesa: A distributed nosql storage engine for big trajectory data[C]//2020 IEEE 36th International Conference on Data Engineering
ICDE, 2020-04-20 00:00:00 +0800
[PDF][Paper Link]

JUST: JD Urban Spatio-Temporal Data Engine
Li R, He H, Wang R, et al. Just: Jd urban spatio-temporal data engine[C]//2020 IEEE 36th International Conference on Data Engineering
ICDE, 2020-04-20 00:00:00 +0800
[PDF][Paper Link]

Efficient suspected infected crowds detection based on spatio-temporal trajectories
He H, Li R, Wang R, et al. Efficient suspected infected crowds detection based on spatio-temporal trajectories[J]. arXiv preprint arXiv:2004.06653, 2020.
arXiv, 2020-04-11 00:00:00 +0800
[PDF][Paper Link]

HONORS AND AWARDS

• 2024, 西南交通大学优秀毕业生
• 2022, Innovation Patent Award, JD iCity
• 2021, Best Demo Paper Award, ACM SIGSPATIAL
• 2021, Outstanding Intern, JD iCity
• 2020, Outstanding Communist Youth League Member Award
• 2019, 互联网+交通运输创新创业大赛，交通部，国家三等奖
• 2019, Outstanding Graduate Student Award, SWJTU University
• 2018, Outstanding Undergraduate Thesis (优秀本科毕业论文)
• 2017, Special Scholarship, SWJTU University
• 2017, 第十届全国大学生节能减排社会实践与科技竞赛，教育部，国家一等奖
• 2017, 第七届中国大学生服务外包创新创业大赛，教育部、商务部，国家二等奖
• 2016, 第六届中国大学生服务外包创新创业大赛，教育部、商务部，国家二等奖

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