@article{queryefficienthardlabelblackboxattackan,
  title = {Query-Efficient Hard-label Black-box Attack:An Optimization-based Approach},
  author = {Minhao Cheng and Thong Le and Pin-Yu Chen and Jin-Feng Yi and huan zhang and Cho-Jui Hsieh},
  year = {2018},
  eprint = {1807.04457},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1807.04457v1},
}