@inproceedings{middleton2003capturing,
  title = "Capturing interest through inference and visualization: Ontological user profiling in recommender systems",
  author = "Middleton, Stuart E and Shadbolt, Nigel R and De Roure, David C",
  year = "2003",
  booktitle = "Proceedings of the 2nd international conference on Knowledge capture",
  organization = "ACM",
  pages = "62--69",
}