@article{shapingexplanationssemanticrewardmodelin,
  title = {Shaping Explanations: Semantic Reward Modeling with Encoder-Only Transformers for GRPO},
  author = {Francesco Pappone and Ruggero Marino Lazzaroni and Federico Califano and Niccolò Gentile and Roberto Marras},
  year = {2025},
  eprint = {2509.13081},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2509.13081},
}