@article{JMLR:v10:angluin09a,
  author  = {Dana Angluin and James Aspnes and Jiang Chen and David Eisenstat and Lev Reyzin},
  title   = {Learning Acyclic Probabilistic Circuits Using Test Paths},
  journal = {Journal of Machine Learning Research},
  year    = {2009},
  volume  = {10},
  number  = {65},
  pages   = {1881--1911},
  url     = {http://jmlr.org/papers/v10/angluin09a.html}
}