@article{lengthcontrolledmarginbasedpreference,
  title = {Length-Controlled Margin-Based Preference Optimization without Reference Model},
  author = {Gengxu Li and Tingyu Xia and Yi Chang and Yuan Wu},
  year = {2025},
  eprint = {2502.14643},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2502.14643v1},
}