@article{multigrpomultigroupadvantageestimationfo,
  title = {Multi-GRPO: Multi-Group Advantage Estimation for Text-to-Image Generation with Tree-Based Trajectories and Multiple Rewards},
  author = {Qiang Lyu and Zicong Chen and Chongxiao Wang and Haolin Shi and Shibo Gao and Ran Piao and Youwei Zeng and Jianlou Si and Fei Ding and Jing Li and Chun Pong Lau and Weiqiang Wang},
  year = {2025},
  eprint = {2512.00743},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2512.00743},
}