@article{JMLR:v19:17-701,
  author  = {Charles Zheng and Rakesh Achanta and Yuval Benjamini},
  title   = {Extrapolating Expected Accuracies for Large Multi-Class Problems},
  journal = {Journal of Machine Learning Research},
  year    = {2018},
  volume  = {19},
  number  = {65},
  pages   = {1--30},
  url     = {http://jmlr.org/papers/v19/17-701.html}
}