@article{explicitpreferenceoptimizationnoneedfor, title = {Explicit Preference Optimization: No Need for an Implicit Reward Model}, author = {Xiangkun Hu and Lemin Kong and Tong He and David Wipf}, year = {2025}, eprint = {2506.07492}, archivePrefix = {arXiv}, url = {https://arxiv.org/abs/2506.07492v1}, }