@inproceedings{fernandes-2026-usp-shroom, title = "{USP} at {SHROOM}-Visions: Why Informative Proxy Visual Signals Do Not Localize Hallucinated Spans", author = "Fernandes, Rafael M.", editor = {Aziz, Wilker and Berant, Jonathan and Eikema, Bryan and Ilia, Evgenia and de Marneffe, Marie-Catherine and Plank, Barbara and Shelmanov, Artem and Swayamdipta, Swabha and Tiedemann, J{\"o}rg and Vazhentsev, Artem and V{\'a}zquez, Ra{\'u}l and Zerva, Chrysoula}, booktitle = "The Proceedings of the Third Workshop on Uncertainty-Aware {NLP}", month = oct, year = "2026", address = "Budapest, Hungary", publisher = "Association for Computational Linguistics", url = "https://aclanthology.org/2026.uncertainlp-main.47/", pages = "734--742", ISBN = "979-8-89176-486-6" }