@article{JMLR:v21:18-041,
  author  = {Junhong Lin and Volkan Cevher},
  title   = {Optimal Convergence for Distributed Learning with Stochastic Gradient Methods and Spectral Algorithms},
  journal = {Journal of Machine Learning Research},
  year    = {2020},
  volume  = {21},
  number  = {147},
  pages   = {1--63},
  url     = {http://jmlr.org/papers/v21/18-041.html}
}