Interaction-level Membership Inference Attack for Recommender Systems via Cluster-based User Modeling.

@inproceedings{zong-2026-interactionlevel, author = {Danyang Zong and Kaike Zhang and Qi Cao and Du Su and Fei Sun}, editor = {Hakim Hacid and Yoelle Maarek and Francesco Bonchi and Ido Guy and Emine Yilmaz}, title = {{Interaction-level Membership Inference Attack for Recommender Systems via Cluster-based User Modeling}}, booktitle = {{Proceedings of the ACM Web Conference 2026, WWW 2026, Dubai, United Arab Emirates, originally scheduled for April 13-17, 2026, rescheduled for June 29 - July 3, 2026}}, pages = {8481--8484}, publisher = {ACM}, year = {2026}, url = {https://doi.org/10.1145/3774904.3792890}, doi = {https://doi.org/10.1145/3774904.3792890} }