Simple-Sampling and Hard-Mixup with Prototypes to Rebalance Contrastive Learning for Text Classification.

@inproceedings{li-2026-simplesampling, author = {Mengyu Li and Yonghao Liu and Fausto Giunchiglia and Ximing Li and Xiaoyue Feng and Renchu Guan}, editor = {Hakim Hacid and Yoelle Maarek and Francesco Bonchi and Ido Guy and Emine Yilmaz}, title = {{Simple-Sampling and Hard-Mixup with Prototypes to Rebalance Contrastive Learning for Text Classification}}, 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 = {3698--3708}, publisher = {ACM}, year = {2026}, url = {https://doi.org/10.1145/3774904.3792237}, doi = {https://doi.org/10.1145/3774904.3792237} }