@article{improvingfrauddetectionviahierarchical,
  title = {Improving Fraud Detection via Hierarchical Attention-based Graph Neural Network},
  author = {Yajing Liu and Zhengya Sun and Wensheng Zhang},
  year = {2022},
  eprint = {2202.06096},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2202.06096v2},
}