Qintian Guo

Email: qtguo@ust.hk

Office: Room 3208 (Lift 20), HKUST, Clear Water Bay, Hong Kong SAR

About Me

I will soon join the Beijing Institute of Technology (Zhuhai) as a faculty member. I am actively looking for self-motivated Ph.D. and Master's students to join my team. Please feel free to contact me via email if you are interested!

I am currently a Postdoctoral Fellow at the Hong Kong University of Science and Technology (HKUST). I earned my Ph.D. in Systems Engineering and Engineering Management from The Chinese University of Hong Kong (CUHK) in 2024. I also hold a master's degree in Electrical Engineering from the University of Alberta and a bachelor's degree from the University of Science and Technology of China (USTC).

My research spans graph algorithms, social network analysis (e.g., influence maximization), and retrieval-augmented generation (RAG). I am always open for possible collaborations, please do not hesitate to contact me if you are interested!

Publications

* indicates co-first authorship; # indicates corresponding author.

  1. Chen Feng, Xinguang Chen, Qintian Guo#, Fangyuan Zhang, Sibo Wang.
    Efficient Approximation Algorithms for Minimum Cost Seed Selection with Probabilistic Coverage Guarantee.
    Proceedings of the ACM on Management of Data (SIGMOD), 2(4): 197:1–197:26, 2024.
  2. Kun Xie, Xiangyu Dong, Yusong Zhang, Xingyi Zhang, Qintian Guo, Sibo Wang.
    Learning-based Attribute-Augmented Proximity Matrix Factorization for Attributed Network Embedding.
    IEEE Transactions on Knowledge and Data Engineering (TKDE), 36(11): 6517–6531, 2024.
  3. Qintian Guo*, Dandan Lin*, Sibo Wang, Raymond Chi-Wing Wong, Wenqing Lin.
    Efficient Algorithms for Group Hitting Probability Queries on Large Graphs.
    IEEE Transactions on Knowledge and Data Engineering (TKDE), 36(7): 2995–3008, 2024.
  4. Qintian Guo*, Chen Feng*, Fangyuan Zhang, Sibo Wang.
    Efficient Algorithm for Budgeted Adaptive Influence Maximization: An Incremental RR-set Update Approach.
    Proceedings of the ACM on Management of Data (SIGMOD), 1(3): 207:1–207:26, 2023.
  5. Guanhao Hou, Qintian Guo, Fangyuan Zhang, Sibo Wang, Zhewei Wei.
    Personalized PageRank on Evolving Graphs with an Incremental Index-Update Scheme.
    Proceedings of the ACM on Management of Data (SIGMOD), 1(1): 25:1–25:26, 2023.
  6. Qintian Guo, Sibo Wang, Zhewei Wei, Wenqing Lin, Jing Tang.
    Influence Maximization Revisited: Efficient Sampling with Bound Tightened.
    ACM Transactions on Database Systems (TODS), 47(3): 12:1–12:45, 2022.
  7. Song Bian, Qintian Guo, Sibo Wang, Jeffrey Xu Yu.
    Efficient Algorithms for Budgeted Influence Maximization on Massive Social Networks.
    Proceedings of the VLDB Endowment (PVLDB), 13(9): 1498–1510, 2020.
  8. Qintian Guo, Sibo Wang, Zhewei Wei, Ming Chen.
    Influence Maximization Revisited: Efficient Reverse Reachable Set Generation with Bound Tightened.
    Proceedings of the ACM SIGMOD International Conference, 2020. (CCF A)

Academic Services

Reviewer or external reviewer for:

Teaching Experience

Patent

Chinese National Patent: An Adaptive Budgeted Influence Maximization Method for Social Network Marketing

Sibo Wang, Qintian Guo, Hong Cheng, Jihong Guan
Patent No.: CN202310902239.7

Funding

HKUST-WeBank Joint Laboratory (HKD 500,000)
Project: Knowledge Graph Based Retrieval Augmented Generation (2025–2026)
Role: Co-Principal Investigator (Co-PI)