@article{250511070,
  title = {Towards Self-Improvement of Diffusion Models via Group Preference Optimization},
  author = {Renjie Chen and Wenfeng Lin and Yichen Zhang and Jiangchuan Wei and Boyuan Liu and Chao Feng and Jiao Ran and Mingyu Guo},
  year = {2025},
  eprint = {2505.11070},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2505.11070v1},
}