@article{suboptimallocalminimaexistforalmostall,
  title = {Sub-Optimal Local Minima Exist for Neural Networks with Almost All Non-Linear Activations},
  author = {Tian Ding and Dawei Li and Ruoyu Sun},
  year = {2019},
  eprint = {1911.01413},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1911.01413v3},
}