@inproceedings{IwaDuvGha2012warped,
  title={Warped Mixtures for Nonparametric Cluster Shapes},
  author={Tomoharu Iwata, David Duvenaud, Zoubin Ghahramani},
  booktitle={29th Conference on Uncertainty in Artificial Intelligence},
  year={2013},
  pages={311-319}
}