@article{enhancingllmbasedsearchagentsviacontribu,
  title = {Enhancing LLM-based Search Agents via Contribution Weighted Group Relative Policy Optimization},
  author = {Junzhe Wang and Zhiheng Xi and Yajie Yang and Hao Luo and Shihan Dou and Tao Gui and Qi Zhang},
  year = {2026},
  eprint = {2604.14267},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2604.14267},
}