CATS: Cluster-Aware Thompson Sampling for Negative Mining in Sequential Recommendation.

@inproceedings{barthes-2026-cats, author = {Christine Barthes and Giulia Di Teodoro and Federico Siciliano and Pierre Glize and Nicola Tonellotto and Fabrizio Silvestri}, editor = {Hannah Bast and Alistair Moffat and Falk Scholer and Marc Najork and Min Zhang and Hannah Bast and Marc Najork and Min Zhang}, title = {{CATS: Cluster-Aware Thompson Sampling for Negative Mining in Sequential Recommendation}}, booktitle = {{Proceedings of the 49th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2026, MelbourneVICAustralia, July 20-24, 2026}}, pages = {280--289}, publisher = {ACM}, year = {2026}, url = {https://doi.org/10.1145/3805712.3809539}, doi = {https://doi.org/10.1145/3805712.3809539} }