@inproceedings{ijcai2009p212,
  title     = {Toward Unsupervised Activity Discovery Using Multi-Dimensional Motif Detection in Time Series},
  author    = {Vahdatpour, Alireza and Amini, Navid and Sarrafzadeh, Majid},
  booktitle = {Proceedings of the Twenty-First International Joint Conference on
               Artificial Intelligence, {IJCAI-09}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Hiroaki Kitano},
  pages     = {1261--1265},
  year      = {2009},
  url       = {https://ijcai.org/proceedings/2009/212},
}