@article{stochasticoptimizationwithimportance,
  title = {Stochastic Optimization with Importance Sampling},
  author = {Peilin Zhao and Tong Zhang},
  year = {2014},
  eprint = {1401.2753},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1401.2753v2},
}