Don't Contrast the Impossible: Region-Constrained Batching for Contrastive User Modeling on a Local Community Platform.

@inproceedings{han-2026-dont, author = {Seungho Han and Byeongchang Kim and Jin Yu}, 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 = {{Don't Contrast the Impossible: Region-Constrained Batching for Contrastive User Modeling on a Local Community Platform}}, booktitle = {{Proceedings of the 49th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2026, MelbourneVICAustralia, July 20-24, 2026}}, pages = {4639--4643}, publisher = {ACM}, year = {2026}, url = {https://doi.org/10.1145/3805712.3808467}, doi = {https://doi.org/10.1145/3805712.3808467} }