@inproceedings{dong-etal-2026-omnihalluc,
    title = "{O}mni{H}alluc-{L}: Counterfactual Benchmarking and Modality-Perturbation Calibration for Long-Form Omni Hallucination",
    author = "Dong, Zixuan  and
      Tang, Jiafu  and
      Lei, Zhide  and
      Cao, Zhe  and
      Zhang, Zijie  and
      Wang, Yanghai  and
      Li, Shihao  and
      Wang, Xiaodong  and
      Peng, Baoyun  and
      Liu, Jiaheng",
    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.882/",
    pages = "20361--20377",
    ISBN = "979-8-89176-459-0"
}