@article{measuringresearchdifficultyofacademicpap,
  title = {Measuring Research Difficulty of Academic Papers: A Case Study in Natural Language Processing},
  author = {Haochuan Li and Jingyuan Li and Yi Zhao and Heng Zhang and Yukai Yang and Zile Hu and Chengzhi Zhang},
  year = {2026},
  eprint = {2606.25307},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2606.25307},
}