@article{JMLR:v25:23-1372,
  author  = {Marie Du Roy de Chaumaray and Salima El Kolei and Marie-Pierre Etienne and Matthieu Marbac},
  title   = {Estimation of the Order of Non-Parametric Hidden Markov Models using the Singular Values of an Integral Operator},
  journal = {Journal of Machine Learning Research},
  year    = {2024},
  volume  = {25},
  number  = {415},
  pages   = {1--37},
  url     = {http://jmlr.org/papers/v25/23-1372.html}
}