@article{ensemblekalmaninversionaderivativefree,
  title = {Ensemble Kalman Inversion: A Derivative-Free Technique For Machine Learning Tasks},
  author = {Nikola B. Kovachki and Andrew M. Stuart},
  year = {2018},
  eprint = {1808.03620},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1808.03620v1},
}