@article{JMLR:v10:chen09b,
  author  = {Jie Chen and Haw-ren Fang and Yousef Saad},
  title   = {Fast Approximate kNN Graph Construction for High Dimensional Data via Recursive Lanczos Bisection},
  journal = {Journal of Machine Learning Research},
  year    = {2009},
  volume  = {10},
  number  = {69},
  pages   = {1989--2012},
  url     = {http://jmlr.org/papers/v10/chen09b.html}
}