@inproceedings{wang2011maximal,
  title={Maximal cliques that satisfy hard constraints with application to deformable object model learning},
  author={Wang, Xinggang and Bai, Xiang and Yang, Xingwei and Liu, Wenyu and Latecki, Longin J},
  booktitle={Advances in Neural Information Processing Systems},
  pages={864--872},
  year={2011}
}