@inproceedings{wang-etal-2026-enhancing-llm,
    title = "Enhancing {LLM}-based Search Agents via Contribution Weighted Group Relative Policy Optimization",
    author = "Wang, Junzhe  and
      Xi, Zhiheng  and
      Yang, Yajie  and
      Luo, Hao  and
      Dou, Shihan  and
      Gui, Tao  and
      Zhang, Qi",
    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.1462/",
    pages = "31704--31718",
    ISBN = "979-8-89176-390-6"
}