@article{learningparametricoutputhmmswithtwo,
  title = {Learning Parametric-Output HMMs with Two Aliased States},
  author = {Roi Weiss and Boaz Nadler},
  year = {2015},
  eprint = {1502.02158},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1502.02158v1},
}