@article{JMLR:v19:18-088,
  author  = {Mariano Tepper and Anirvan M. Sengupta and Dmitri Chklovskii},
  title   = {Clustering is semidefinitely not that hard: Nonnegative SDP for manifold disentangling},
  journal = {Journal of Machine Learning Research},
  year    = {2018},
  volume  = {19},
  number  = {82},
  pages   = {1--30},
  url     = {http://jmlr.org/papers/v19/18-088.html}
}