@article{JMLR:v13:mazumder12a,
  author  = {Rahul Mazumder and Trevor Hastie},
  title   = {Exact Covariance Thresholding into Connected Components for Large-Scale Graphical Lasso},
  journal = {Journal of Machine Learning Research},
  year    = {2012},
  volume  = {13},
  number  = {27},
  pages   = {781--794},
  url     = {http://jmlr.org/papers/v13/mazumder12a.html}
}