@misc{arxiv250510978,
  title = {Group-in-Group Policy Optimization for LLM Agent Training},
  author = {Feng, Lang and Xue, Zhenghai and Liu, Tingcong and An, Bo},
  year = {2025},
  eprint = {2505.10978v1},
  archivePrefix = {arXiv},
  doi = {10.48550/arXiv.2505.10978},
  url = {https://arxiv.org/abs/2505.10978v1}
}

@misc{arxiv250511821,
  title = {Reinforcing Multi-Turn Reasoning in LLM Agents via Turn-Level Credit Assignment},
  author = {Zeng, Siliang and Wei, Quan and Brown, William and Frunza, Oana and Nevmyvaka, Yuriy and Hong, Mingyi},
  year = {2025},
  eprint = {2505.11821v1},
  archivePrefix = {arXiv},
  doi = {10.48550/arXiv.2505.11821},
  url = {https://arxiv.org/abs/2505.11821v1}
}

@misc{arxiv260222817,
  title = {Hierarchy-of-Groups Policy Optimization for Long-Horizon Agentic Tasks},
  author = {He, Shuo and Feng, Lang and Wei, Qi and Cheng, Xin and Feng, Lei and An, Bo},
  year = {2026},
  eprint = {2602.22817v1},
  archivePrefix = {arXiv},
  doi = {10.48550/arXiv.2602.22817},
  url = {https://arxiv.org/abs/2602.22817v1}
}

@misc{arxiv260411037,
  title = {RTMC: Step-Level Credit Assignment via Rollout Trees},
  author = {Wang, Tao and Zheng, Suhang and Xu, Xiaoxiao},
  year = {2026},
  eprint = {2604.11037v1},
  archivePrefix = {arXiv},
  doi = {10.48550/arXiv.2604.11037},
  url = {https://arxiv.org/abs/2604.11037v1}
}

@misc{arxiv260508013,
  title = {Learning CLI Agents with Structured Action Credit under Selective Observation},
  author = {Su, Haoyang and Wen, Ying},
  year = {2026},
  eprint = {2605.08013v1},
  archivePrefix = {arXiv},
  doi = {10.48550/arXiv.2605.08013},
  url = {https://arxiv.org/abs/2605.08013v1}
}

@misc{arxiv260713988,
  title = {TRACE: Turn-level Reward Assignment via Credit Estimation for Long-Horizon Agents},
  author = {Tao, Leitian and Peng, Baolin and Yao, Wenlin and Ge, Tao and Cheng, Hao and Wang, Mike Hang and Gao, Jianfeng and Li, Sharon},
  year = {2026},
  eprint = {2607.13988v1},
  archivePrefix = {arXiv},
  doi = {10.48550/arXiv.2607.13988},
  url = {https://arxiv.org/abs/2607.13988v1}
}

@misc{arxiv260801667,
  title = {TCPO: Turn-Level Credit Policy Optimization},
  author = {Liao, Sicong and Chen, Zhi and Tang, Yaohua},
  year = {2026},
  eprint = {2608.01667v1},
  archivePrefix = {arXiv},
  doi = {10.48550/arXiv.2608.01667},
  url = {https://arxiv.org/abs/2608.01667v1}
}

@misc{arxiv260824588,
  title = {IAPO: Influence-Aware Policy Optimization for Credit Assignment in Multi-Turn Service Agents},
  author = {Ren, Bo and Mao, Yirong and Yang, Yi and Que, Wenhui},
  year = {2026},
  eprint = {2608.24588v2},
  archivePrefix = {arXiv},
  doi = {10.48550/arXiv.2608.24588},
  url = {https://arxiv.org/abs/2608.24588v2}
}