@article{JMLR:v6:elidan05a,
  author  = {Gal Elidan and Nir Friedman},
  title   = {Learning Hidden Variable Networks: The Information Bottleneck Approach},
  journal = {Journal of Machine Learning Research},
  year    = {2005},
  volume  = {6},
  number  = {4},
  pages   = {81--127},
  url     = {http://jmlr.org/papers/v6/elidan05a.html}
}