@article{rarewordsamajorproblemforcontextualized,
  title = {Rare Words: A Major Problem for Contextualized Embeddings And How to Fix it by Attentive Mimicking},
  author = {Timo Schick and Hinrich Schütze},
  year = {2019},
  eprint = {1904.06707},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1904.06707v4},
}