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publications
Generative Diffusion Models on Graphs: Methods and Applications
Published in IJCAI, 2023
IJCAI survey
Recommended citation: Fan, W., Liu, C., Liu, Y., Li, J., Li, H., Liu, H., Tang, J. and Li, Q., 2023. Generative diffusion models on graphs: Methods and applications. arXiv preprint arXiv:2302.02591.
Score-Based Generative Diffusion Models for Social Recommendations
Published in TKDE, 2025
Social Recommendation
Recommended citation: C. Liu, J. Zhang, S. Wang, W. Fan and Q. Li, "Score-Based Generative Diffusion Models for Social Recommendations," in IEEE Transactions on Knowledge and Data Engineering, vol. 37, no. 11, pp. 6666-6679, Nov. 2025, doi: 10.1109/TKDE.2025.3600103.
Continuous-time Discrete-space Diffusion Model for Recommendation
Published in WSDM, 2025
Generative Recommendation
Recommended citation: Chengyi Liu, Xiao Chen, Shijie Wang, Wenqi Fan, and Qing Li. 2026. Continuous-time Discrete-space Diffusion Model for Recommendation. In Proceedings of the Nineteenth ACM International Conference on Web Search and Data Mining (WSDM '26). Association for Computing Machinery, New York, NY, USA, 406–415. https://doi.org/10.1145/3773966.3777987
talks
Talk 1 on Relevant Topic in Your Field
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Conference Proceeding talk 3 on Relevant Topic in Your Field
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teaching
DATA STRUCTURES
Undergraduate course, The Hong Kong Polytechnic University, Department of Computing, 2023
Teaching Assistant
DATA STRUCTURES AND DATABASE SYSTEMS
Master course, The Hong Kong Polytechnic University, Department of Computing, 2024
Teaching Assistant
DATABASE SYSTEMS
Undergraduate course, The Hong Kong Polytechnic University, Department of Computing, 2024
Teaching Assistant
LEGAL ASPECTS, PROFESSIONALISM AND ETHICS OF COMPUTING
Undergraduate course, The Hong Kong Polytechnic University, Department of Computing, 2025
Teaching Assistant
DATABASE SYSTEMS
Undergraduate course, The Hong Kong Polytechnic University, Department of Computing, 2025
Teaching Assistant