@inproceedings{ijcai2013p203,
  title     = {Histogram of Oriented Displacements (HOD): Describing Trajectories of Human Joints for Action Recognition},
  author    = {Gowayyed, Mohammad Abdelaziz and Torki, Marwan and Hussein, Mohamed Elsayed and El-Saban, Motaz},
  booktitle = {Proceedings of the Twenty-Third International Joint Conference on
               Artificial Intelligence, {IJCAI-13}},
  publisher = {AAAI Press / International Joint Conferences on Artificial Intelligence},
  editor    = {Francesca Rossi},
  pages     = {1351--1356},
  year      = {2013},
  month     = {8},
  url       = {https://ijcai.org/proceedings/2013/203},
}