@inproceedings{ye-etal-2025-cpo,
    title = "{CPO}: Addressing Reward Ambiguity in Role-playing Dialogue via Comparative Policy Optimization",
    author = "Ye, Jing  and
      Wang, Rui  and
      Wu, Yuchuan  and
      Ma, Victor  and
      Fang, Feiteng  and
      Huang, Fei  and
      Li, Yongbin",
    editor = "Christodoulopoulos, Christos  and
      Chakraborty, Tanmoy  and
      Rose, Carolyn  and
      Peng, Violet",
    booktitle = "Findings of the Association for Computational Linguistics: EMNLP 2025",
    month = nov,
    year = "2025",
    address = "Suzhou, China",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/2025.findings-emnlp.18/",
    pages = "297--323",
    ISBN = "979-8-89176-335-7"
}