@inproceedings{chen-etal-2026-knowgpo, title = "{K}now{GPO}: Knowledge-Grouped Policy Optimization for Search Agents", author = "Chen, Siqi and Lu, Zhengxi and Yan, Yuchen and Wu, Xingyu and Chen, Qipeng and Zhang, Xin and Liu, Aiting and Deng, Chao and Liu, Jie and Ma, Jin and Lu, Weiming and Xiao, Jun and Shen, Yongliang", 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.2357/", pages = "53526--53546", ISBN = "979-8-89176-459-0" }