@article{hypotheticaldocumentsorknowledgeleakage,
  title = {Hypothetical Documents or Knowledge Leakage? Rethinking LLM-based Query Expansion},
  author = {Yejun Yoon and JaeYoon Jung and Seunghyun Yoon and Kunwoo Park},
  year = {2025},
  eprint = {2504.14175},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2504.14175v1},
}