@CONFERENCE{Li.bowad.2013,
  author = {Wei-Xin LI and Qian Yu and Harpreet Sawhney and Nuno Vasconcelos},
  title = {Recognizing Activities via Bag of Words for Attribute Dynamics},
  booktitle = {Proceedings of IEEE Conference on Computer Vision and Pattern Recognition},
  pages = {2587-2594},
  year = {2013}
}