@article{acceleratinghessianfreeoptimizationfor,
  title = {Accelerating Hessian-free optimization for deep neural networks by implicit preconditioning and sampling},
  author = {Tara N. Sainath and Lior Horesh and Brian Kingsbury and Aleksandr Y. Aravkin and Bhuvana Ramabhadran},
  year = {2013},
  eprint = {1309.1508},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1309.1508v3},
}