苏州大学特聘教授、博导，华为资助青年教授，CCF数据库、大数据与智慧交通专委会委员, CCF YOCSEF苏州学术秘书、上海具识智能技术顾问。曾任香港科技大学计算机科学与工程系研究助理教授（2023.12至2025.12）。博士毕业于昆士兰大学（2023.9），主要研究方向为时空数据智能，涵盖城市交通、数字孪生与具身智能等应用。近五年发表论文20篇，其中一作/通讯论文12篇，包括VLDBJ、TKDE、VLDB、ICDE、AAAI、ACL、PACIS等高水平国际期刊和会议。主持国家自然科学基金1项、江苏省自然科学基金1项、华为项目2项及国家重大工程配套科研专项课题1项。授权国家专利4项。荣获昆士兰大学杰出博士论文奖、广东省计算机学会优秀论文一等奖、澳大利亚数据库学术会议最佳论文奖等荣誉。担任多个CCF-A类国际数据库和人工智能期刊审稿人及会议程序委员。

目前主要研究方向为时空数据智能，聚焦大规模异构时空数据的管理、分析与智能推理，具体划分以下三方面：

• 城市交通： 时空数据管理、路径优化与交通分析；

• 数字孪生： 多模态空间数据融合、三维场景建模与实时渲染；

• 具身智能： 三维空间理解、空间推理与自主决策。

Selected CCF-A Publications (* Corresponding Author)

• Mengxuan Zhang, Xinjie Zhou, Lei Li, Ziyi Liu, Goce Trajcevski, Yan Huang, Xiaofang Zhou. A Universal Scheme for Partitioned Dynamic Shortest Path Index. TKDE, 2026.

• Wen Yang, Ziyi Liu*, Rui Zhou, Lu Chen, Jiaxin Li, Chengfei Liu, and Jiajie Xu. “Hypergraph-Structured Variational Inference for Next-Basket Recommendation.” TKDE, 2026.

• Yaxuan Dai, Wenxuan Xie, Xialie Zhuang, Tianyu Yang, Ziyi Liu*, Haiqin Yang, Yiying Yang, Yuhang Zhao, Pingfu Chao, and Wenhao Jiang. “Ex-SQL: Reasoning with Execution-Aware Reinforcement Learning for Text-to-SQL.” ACL, 2026.

• Yi Cao, Weijie Shi, Wei-Jie Xu, Yucheng Shen, Yue Cui, Hanghui Guo, Shimin Di, Ziyi Liu*, Jiaming Li, Alexander Zhou, Jia Zhu, and Jiajie Xu. “TIV: Thought Injection via Vectors for Efficient Reasoning in Large Reasoning Models.” AAAI, 2026.

• Yanping Chen, Weijie Shi, Mengze Li, Yue Cui, Jiaming Li, Ruiyuan Zhang, Hao Chen, Hanghui Guo, Shimin Di, Ziyi Liu, Jia Zhu, and Jiajie Xu. “Active Multi-Source Domain Adaptation for Multimodal Fake News Detection.” AAAI, 2026.

• Ziyi Liu, Lei Li, Mengxuan Zhang, Wen Hua, and Xiaofang Zhou. “Approximate Skyline Path Index for Efficient Constrained Shortest Pathfinding with Theoretical Guarantee.” ICDE, 2024.

• Ziyi Liu, Lei Li, Mengxuan Zhang, Wen Hua, and Xiaofang Zhou. “FHL-Cube: Multi-Constraint Shortest Path Querying with Flexible Combination of Constraints.” PVLDB, 2022.

• Ziyi Liu, Lei Li, Mengxuan Zhang, Wen Hua, and Xiaofang Zhou. “Multi-Constraint Shortest Path Using Forest Hop Labeling.” VLDBJ, 2022.

• Ziyi Liu, Lei Li, Mengxuan Zhang, Wen Hua, Pingfu Chao, and Xiaofang Zhou. “Efficient Constrained Shortest Path Query Answering with Forest Hop Labeling.” ICDE, 2021.

详见主页：https://ziyi-liu-30.github.io/

• SOEN2079 Big Data Management
  Lecturer | Fall 2026
  School of Computer Science and Technology, Soochow University
  Suzhou, China

• COMP6311G Advanced Spatiotemporal Indexing and Query Processing
  Lecturer | Fall 2025
  Department of Computer Science and Engineering, The Hong Kong University of Science and Technology (HKUST)
  Hong Kong

• COMP3311 Database Management Systems
  Lecturer | Fall 2024
  Department of Computer Science and Engineering, The Hong Kong University of Science and Technology (HKUST)
  Hong Kong

PhD Students

Current

• Haolun Ma — HKUST · Fall 2024 · Learning to Route

• Teng Zhang — HKUST · Fall 2025 · Traffic Flow Prediction

• Yanchen Zhu — HKUST · Fall 2025 · UAV Navigation

• Jiawei Li — HKUST · Fall 2023 · Spatial Semantic Search on Point Clouds

Master Students

Current

• Jiahui Hu — Soochow University · Fall 2026 · Geological Data Infra 

• Yuhe Luo — Soochow University · Fall 2026 · KV Cache Management for Long-term Embodied Tasks

• Junhui Lin — Soochow University · Fall 2026 · AI Agent for Geological Forecasting 

• Ping Cen — Soochow University · Fall 2025 · Topological Operator Constrained Optimization for Multi-step Spatial Reasoning

• Qian Miao — Harbin Institute of Technology · Fall 2026 · Skill Discovery and Evolution for Embodied AI Agent

• Qiwen Sun — Harbin Institute of Technology · Fall 2026 · Credit Assignment for Memory Agent

• Tianrui Liu — Harbin Institute of Technology · Fall 2024 · Multi-Constraint Embodied Chain-of-Thought Reasoning

Undergraduate Thesis Students

• Zhetai Jin — HKUST · 2025 · Multi-Cargo Network Modeling

• Yixiang Chen — HKUST · 2024 · Spatiotemporal Data Analytics and Learning

• Cheuk Yuen Wong — HKUST · 2024 · Multi-Dimensional Road Network Routing

• Yuen Shan Cheung, Hei Yiu Tam — HKUST · 2024–2025 · Learning-Based Registration of Cross-Source Point Clouds

• Xiao Xu, Huihao Jing, Hanning Zhang — HKUST · 2023–2024 · Indexing and Search over Heterogeneous Spatiotemporal Data

Opening Positions

• PhD Students: Self-motivated students with a strong interest in research are welcome to apply. Applicants with an excellent academic record or prior research experience and publications are preferred.

• Master Students: Applicants should have a strong academic record or solid programming skills. Research or project experience is preferred.

• Undergraduate Students: A limited number of positions are available for students with a strong interest in research, initiative, and good execution skills. Research projects and undergraduate thesis supervision will be provided.

All students will be personally supervised by me. If interested, please email your CV and academic transcript to liuziyi@suda.edu.cn