@article{stochasticgradientdescentwithbiasedbut,
  title = {Stochastic Gradient Descent with Biased but Consistent Gradient Estimators},
  author = {Jie Chen and Ronny Luss},
  year = {2018},
  eprint = {1807.11880},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1807.11880v4},
}