@inproceedings{wang-2026-probing, title = "Probing Pretraining ``Quality'': Sociolinguistic Mobility as a Lens on Web Corpus Filters", author = "Wang, Jessica", editor = "Ortiz Suarez, Pedro and Burchell, Laurie and Ljube{\v{s}}i{\'c}, Nikola and Scherrer, Yves and Laippala, Veronika and Dini{\'c}, Vuk and Vaughan, Thom", booktitle = "Proceedings of the 13th Web-as-Corpus Workshop", month = oct, year = "2026", address = "Budapest, Hungary", publisher = "Association for Computational Linguistics", url = "https://aclanthology.org/2026.wac-1.28/", pages = "320--330", ISBN = "979-8-89176-481-1" }