@article{linearconvergenceofacceleratedstochastic,
  title = {Linear Convergence of Accelerated Stochastic Gradient Descent for Nonconvex Nonsmooth Optimization},
  author = {Feihu Huang and Songcan Chen},
  year = {2017},
  eprint = {1704.07953},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1704.07953v2},
}