@inproceedings{ijcai2007p262,
  title     = {Unsupervised Anomaly Detection},
  author    = {Guthrie, David and Guthrie, Louise and Allison, Ben and Wilks, Yorick},
  booktitle = {Proceedings of the Twentieth International Joint Conference on
               Artificial Intelligence, {IJCAI-07}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Ramon López de Mántaras},
  pages     = {1624--1627},
  year      = {2007},
  url       = {https://ijcai.org/proceedings/2007/262},
}