@article{JMLR:v17:16-185,
  author  = {Xi Chen and Adityanand Guntuboyina and Yuchen Zhang},
  title   = {On Bayes Risk Lower Bounds},
  journal = {Journal of Machine Learning Research},
  year    = {2016},
  volume  = {17},
  number  = {218},
  pages   = {1--58},
  url     = {http://jmlr.org/papers/v17/16-185.html}
}