@inproceedings{ijcai2005p66,
  title     = {Semi-Supervised Regression with Co-Training},
  author    = {Zhou, Zhi-Hua and Li, Ming},
  booktitle = {Proceedings of the Nineteenth International Joint Conference on
               Artificial Intelligence, {IJCAI-05}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  pages     = {908--915},
  year      = {2005},
  url       = {https://ijcai.org/proceedings/2005/66},
}