@article{statisticalinferenceinhiddenmarkovmodels,
  title = {Statistical Inference in Hidden Markov Models using $k$-segment Constraints},
  author = {Michalis K. Titsias and Christopher Yau and Christopher C. Holmes},
  year = {2013},
  eprint = {1311.1189},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1311.1189v1},
}