@article{onthenystromandcolumnsamplingmethods,
  title = {On the Nyström and Column-Sampling Methods for the Approximate Principal Components Analysis of Large Data Sets},
  author = {Darren Homrighausen and Daniel J. McDonald},
  year = {2016},
  eprint = {1602.01120},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1602.01120v1},
}