@article{perturbationbasedqeanexplainable,
  title = {Perturbation-based QE: An Explainable, Unsupervised Word-level Quality Estimation Method for Blackbox Machine Translation},
  author = {Tu Anh Dinh and Jan Niehues},
  year = {2023},
  eprint = {2305.07457},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2305.07457v2},
}