@conference{qi2009combining,
  title={{Combining labeled and unlabeled data with word-class distribution learning}},
  author={Qi, Y. and Collobert, R. and Kuksa, P. and Kavukcuoglu, K. and Weston, J.},
  booktitle={Proceeding of the 18th ACM conference on Information and knowledge management},
  pages={1737--1740},
  year={2009},
  organization={ACM}
}