@article{JMLR:v10:bubeck09a,
  author  = {S{{\'e}}bastien Bubeck and Ulrike von Luxburg},
  title   = {Nearest Neighbor Clustering: A Baseline Method for Consistent Clustering with Arbitrary Objective Functions},
  journal = {Journal of Machine Learning Research},
  year    = {2009},
  volume  = {10},
  number  = {23},
  pages   = {657--698},
  url     = {http://jmlr.org/papers/v10/bubeck09a.html}
}