@article{JMLR:v17:14-468,
  author  = {Sergio Escalera and Vassilis Athitsos and Isabelle Guyon},
  title   = {Challenges in multimodal gesture recognition},
  journal = {Journal of Machine Learning Research},
  year    = {2016},
  volume  = {17},
  number  = {72},
  pages   = {1--54},
  url     = {http://jmlr.org/papers/v17/14-468.html}
}