@article{beyondperplexityalightweightbenchmarkfor,
  title = {Beyond Perplexity: A Lightweight Benchmark for Knowledge Retention in Supervised Fine-Tuning},
  author = {Soheil Zibakhsh Shabgahi and Pedram Aghazadeh and Farinaz Koushanfar},
  year = {2026},
  eprint = {2601.03505},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2601.03505},
}