@inproceedings{collectivegraphicalmodels,
  title = {Collective Graphical Models},
  author = {Daniel R. Sheldon and Thomas G. Dietterich},
  year = {2011},
  booktitle = {NeurIPS 2011 12},
  url = {http://papers.nips.cc/paper/4220-collective-graphical-models},
}