@article{JMLR:v19:17-646,
  author  = {Alessandro Achille and Stefano Soatto},
  title   = {Emergence of Invariance and Disentanglement in Deep Representations },
  journal = {Journal of Machine Learning Research},
  year    = {2018},
  volume  = {19},
  number  = {50},
  pages   = {1--34},
  url     = {http://jmlr.org/papers/v19/17-646.html}
}