@inproceedings{thavarasa-etal-2026-obligatory, title = "Obligatory Slots: Under Reference-Free Evaluation, Dropping a Distinction the Source Never Made Is Free", author = "Thavarasa, Luxshan and Thevakumar, Jubeerathan and Sukumar, Sivasuthan", editor = "Haddow, Barry and Kocmi, Tom and Koehn, Philipp and Monz, Christof", booktitle = "Proceedings of the Eleventh Conference on Machine Translation", month = oct, year = "2026", address = "Budapest, Hungary", publisher = "Association for Computational Linguistics", url = "https://aclanthology.org/2026.wmt-main.41/", pages = "727--746", ISBN = "979-8-89176-474-3" }