Chengyi LIU

Chengyi LIU

PhD student in The Hong Kong Polytechnic University (PolyU)

Continuous-time Discrete-space Diffusion Model for Recommendation

Published in WSDM, 2025

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

Download paper here: arXiv, WSDM’26

Temporary GitHub project reference

Poster

Citation & References

@inproceedings{liu2025continuous,
  author = {Liu, Chengyi and Chen, Xiao and Wang, Shijie and Fan, Wenqi and Li, Qing},
  title = {Continuous-time Discrete-space Diffusion Model for Recommendation},
  year = {2026},
  isbn = {9798400722929},
  publisher = {Association for Computing Machinery},
  doi = {10.1145/3773966.3777987},
  booktitle = {Proceedings of the Nineteenth ACM International Conference on Web Search and Data Mining},
  pages = {406–415},
  keywords = {recommender system, diffusion models, continuous-time discrete diffusion models.},
  series = {WSDM '26}
  }