@inproceedings{dong-etal-2026-rl,
    title = "{RL}-{PLUS}: Countering Capability Boundary Collapse of {LLM}s in Reinforcement Learning with Hybrid-policy Optimization",
    author = "Dong, Yihong  and
      Jiang, Xue  and
      Tao, Yongding  and
      Liu, Huanyu  and
      Zhang, Kechi  and
      Mou, Lili  and
      Cao, Rongyu  and
      MA, Yingwei  and
      Chen, Jue  and
      Li, Binhua  and
      Jin, Zhi  and
      Huang, Fei  and
      Li, Yongbin  and
      Li, Ge",
    editor = "Liakata, Maria  and
      Moreira, Viviane P.  and
      Zhang, Jiajun  and
      Jurgens, David",
    booktitle = "Proceedings of the 64th Annual Meeting of the {A}ssociation for {C}omputational {L}inguistics (Volume 1: Long Papers)",
    month = jul,
    year = "2026",
    address = "San Diego, California, United States",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/ingest-acl/2026.acl-long.1994/",
    pages = "43029--43053",
    ISBN = "979-8-89176-390-6"
}