@article{fasthyperparametertuningusingbayesian,
  title = {Fast Hyperparameter Tuning using Bayesian Optimization with Directional Derivatives},
  author = {Tinu Theckel Joy and Santu Rana and Sunil Gupta and Svetha Venkatesh},
  year = {2019},
  eprint = {1902.02416},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1902.02416v1},
}