@article{hardnegativesampleaugmenteddpoposttraini,
  title = {Hard Negative Sample-Augmented DPO Post-Training for Small Language Models},
  author = {Haocheng Lu and Minjun Zhu and Henry Yu},
  year = {2025},
  eprint = {2512.19728},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2512.19728},
}