@article{hijackingonlinereviewssparsemanipulation,
  title = {Hijacking online reviews: sparse manipulation and behavioral buffering in popularity-biased rating systems},
  author = {Itsuki Fujisaki and Kunhao Yang},
  year = {2026},
  eprint = {2604.13049},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2604.13049},
}