@inproceedings{zhou-etal-2026-repetition, title = "Repetition Mismatch: Why Data Mixture Experiments Don{'}t Scale and How to Fix Them", author = "Zhou, Kevin and Alazraki, Lisa and Cao, Kris and Rei, Marek", editor = "Lee, Hung-Yi and Dev, Sunipa and Li, Jessy and Elliott, Desmond", booktitle = "Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing", month = oct, year = "2026", address = "Budapest, Hungary", publisher = "Association for Computational Linguistics", url = "https://aclanthology.org/2026.emnlp-main.1713/", pages = "39070--39088", ISBN = "979-8-89176-459-0" }