@article{exploitwhereoptimizerexploresvia,
  title = {Detached Error Feedback for Distributed SGD with Random Sparsification},
  author = {An Xu and Heng Huang},
  year = {2020},
  eprint = {2004.05298},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2004.05298v3},
}