@article{JMLR:v18:16-504,
  author  = {Mengdi Wang and Ji Liu and Ethan X. Fang},
  title   = {Accelerating Stochastic Composition Optimization},
  journal = {Journal of Machine Learning Research},
  year    = {2017},
  volume  = {18},
  number  = {105},
  pages   = {1--23},
  url     = {http://jmlr.org/papers/v18/16-504.html}
}