@article{decodinghiddenmarkovmodelsfasterthan,
  title = {Decoding Hidden Markov Models Faster Than Viterbi Via Online Matrix-Vector (max, +)-Multiplication},
  author = {Massimo Cairo and Gabriele Farina and Romeo Rizzi},
  year = {2015},
  eprint = {1512.00077},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1512.00077v2},
}