@article{signmamlefficientmodelagnosticmeta,
  title = {Sign-MAML: Efficient Model-Agnostic Meta-Learning by SignSGD},
  author = {Chen Fan and Parikshit Ram and Sijia Liu},
  year = {2021},
  eprint = {2109.07497},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2109.07497v2},
}