@inproceedings{zhang_CVPR10_annotation,
  title={Automatic image annotation using group sparsity},
  author={Zhang, Shaoting and Huang, Junzhou and Huang, Yuchi and Yu, Yang and Li, Hongsheng and Metaxas, Dimitris N},
  booktitle={IEEE Conference on Computer Vision and Pattern Recognition},
  pages={3312--3319},
  year={2010},
  organization={IEEE}
}