@inproceedings{oadaboostanadaboostvariantforordinal,
  title = {oAdaBoost: An AdaBoost Variant for Ordinal Classification},
  author = {Joao Costa and Jaime S. Cardoso},
  year = {2015},
  booktitle = {ICPRAM 2015 1},
  url = {https://dl.acm.org/citation.cfm?id=2982781},
}