@article{leveraginguserbehaviorhistoryfor,
  title = {Leveraging User Behavior History for Personalized Email Search},
  author = {Keping Bi and Pavel Metrikov and Chunyuan Li and Byungki Byun},
  year = {2021},
  eprint = {2102.07279},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2102.07279v2},
}