@inproceedings{zhang-etal-2026-vfpo,
    title = "{VFPO}: Variance-aware Negative Feedback Policy Optimization for Mitigating Entropy Collapse via Group Statistics",
    author = "Zhang, Bo  and
      Zeng, Zinan  and
      Zhou, Juntong  and
      Chong, Dading  and
      Ding, Zhenyu  and
      Wu, Dengpeng  and
      Ding, Ning  and
      Zhou, Peilin",
    editor = "Lee, Hung-Yi  and
      Dev, Sunipa  and
      Li, Jessy  and
      Elliott, Desmond",
    booktitle = "Findings of the {A}ssociation for {C}omputational {L}inguistics: {EMNLP} 2026",
    month = oct,
    year = "2026",
    address = "Budapest, Hungary",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/2026.findings-emnlp.2449/",
    pages = "52561--52588",
    ISBN = "979-8-89176-462-0"
}