@inproceedings{spectrallearningofmixtureofhiddenmarkov,
  title = {Spectral Learning of Mixture of Hidden Markov Models},
  author = {Cem Subakan and Johannes Traa and Paris Smaragdis},
  year = {2014},
  booktitle = {NeurIPS 2014 12},
  url = {http://papers.nips.cc/paper/5518-spectral-learning-of-mixture-of-hidden-markov-models},
}