@inproceedings{li2013harvesting,
  title={Harvesting Mid-Level Visual Concepts from Large-Scale Internet Images},
  author={Li, Quannan and Wu, Jiajun and Tu, Zhuowen},
  booktitle={Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition (CVPR)},
  pages={851--858},
  year={2013}
}