// About Me
I am a postdoctoral research fellow at the School of Computing (SoC), National University of Singapore (NUS). I earned my Ph.D. at SoC, NUS in 2024. Prior to that, I completed my B.Eng. in Computer Science from Southern University of Science and Technology (SUSTech) in 2019.
My research focuses on large-scale modeling and data-driven analysis of user behavior, from both technical and applied perspectives.
- Technical perspective: I develop algorithmic and data management methods to handle large-scale computational challenges, spanning big data, massive user networks, and large language models. My focus is on reducing computation and monetary cost while improving overall utility and scalability.
- Application perspective: I study user behavior modeling, including social proximity, influence propagation, and user persona representation. These models support downstream applications such as customer segmentation, community and viral marketing, multi-campaign coordination, and the integration of LLMs into computational advertising.
For more details, please see my CV.
// Publications
GEM-Bench: A Benchmark for Ad-Injected Response Generation within Generative Engine Marketing
Silan Hu, Shiqi Zhang, Yimin Shi, and Xiaokui Xiao
Arxiv Preprint, 2025
KET-RAG: A Cost-Efficient Multi-Granular Indexing Framework for Graph-RAG
Yiqian Huang, Shiqi Zhang, and Xiaokui Xiao
Proceedings of the ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (SIGKDD), 2025
You Are What You Bought: Generating Customer Personas for E-commerce Applications
Yimin Shi, Yang Fei, Shiqi Zhang, Haixun Wang, and Xiaokui Xiao
Proceedings of the International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR), 2025
Efficient and Effective Algorithms for A Family of Influence Maximization Problems with A Matroid Constraint
Yiqian Huang, Shiqi Zhang, Laks V.S. Lakshmanan, Wenqing Lin, Xiaokui Xiao, and Bo Tang
Proceedings of the International Conference on Very Large Data Bases (PVLDB), 2025
Information Diffusion Meets Invitation Mechanism
Shiqi Zhang, Jiachen Sun, Wenqing Lin, Xiaokui Xiao, Yiqian Huang and Bo Tang
Proceedings of the ACM Web Conference (TheWebConf), 2024
Capacity Constrained Influence Maximization in Social Networks
Shiqi Zhang, Yiqian Huang, Jiachen Sun, Wenqing Lin, Xiaokui Xiao, and Bo Tang
Proceedings of the ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (SIGKDD), 2023
Efficient Approximation Algorithms for Spanning Centrality
Shiqi Zhang, Renchi Yang, Jing Tang, Xiaokui Xiao, and Bo Tang
Proceedings of the ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (SIGKDD), 2023
Effective and Efficient PageRank-based Positioning for Graph Visualization
Shiqi Zhang, Renchi Yang, Xiaokui Xiao, Xiao Yan, and Bo Tang
Proceedings of the ACM SIGMOD International Conference on Management of Data (SIGMOD), 2023
Measuring Friendship Closeness: A Perspective of Social Identity Theory
Shiqi Zhang, Jiachen Sun, Wenqing Lin, Xiaokui Xiao, and Bo Tang
Proceedings of the ACM International Conference on Information and Knowledge Management (CIKM), 2022
Effective and Scalable Clustering on Massive Attributed Graphs
Renchi Yang, Jieming Shi, Yin Yang, Keke Huang, Shiqi Zhang, and Xiaokui Xiao
Proceedings of the Web Conference (TheWebConf), 2021
RCELF: A residual-based approach for Influence Maximization Problem
Shiqi Zhang, Xinxun Zeng, and Bo Tang
Information Systems (IS), 2021
// Work Experience
- Research Scientist Intern, Common Data Platform (CDP), Interactive Entertainment Group (IEG), Tencent, Oct. 2021 – Oct. 2022, advised by Dr. Wenqing Lin.
// Social Media Posts
- 社交传播和影响力算法在腾讯游戏中的应用实践 DataFun Talk, 2024.
- 腾讯联合新加坡国立大学研发的这个传播模型，已入选WWW 2024 腾讯云开发者, 2024.
- 社交活动的"超级传播者"：揭秘网络影响力最大化算法在推荐中的应用 腾讯云开发者, 2024.
// Invited Talks
- Applications of Social Diffusion and Influence Algorithms in Online Games
- DataFun Summit, 2024.
- Harbin Institute of Technology, 2024.
// Academic Services
- Program committee member for IJCAI 2024.
- Subreviewer or external reviewer for KDD 2022, CIKM 2022, WSDM 2023, WebSci 2024.
// Selected Awards
- Dean's Graduate Research Excellence Award, SoC, NUS, 2024.
- Research Achievement Award, SoC, NUS, 2023.
- Student Travel Award, SIGMOD, 2023.
- Student Travel Award, CIKM, 2022.
- Monthly Best Employee Award, CDP, Tencent, Jul. 2022.
- Outstanding Student Teaching Assistant Award, SUSTech, 2019.
// Teaching Experience
- Teaching Assistant, CS2102: Database Systems, NUS, Jan. 2023 - May. 2023.
- Teaching Assistant, CS2040: Data Structures and Algorithms, NUS, Jan. 2020 - Dec. 2020.
- Tutorial Instructor, CS302: Operating System, SUSTech, Feb. 2019 - Jun. 2019.
- Teaching Assistant, CS203: Data Structures and Algorithm Analysis, SUSTech, Feb. 2018 - Jun. 2018.