@inproceedings{rethinkingthepositionalencodingin,
  title = {Rethinking Positional Encoding in Language Pre-training},
  author = {Guolin Ke and Di He and Tie-Yan Liu},
  year = {2020},
  booktitle = {ICLR 2021 1},
  eprint = {2006.15595},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2006.15595v4},
}