@inproceedings{hofmann:ecir11,
  title = "Balancing Exploration and Exploitation in Learning to Rank Online",
  author = "Katja Hofmann and Shimon Whiteson and Maarten de Rijke",
  year = "2011",
  booktitle = "ECIR 2011: Proceedings of the Thirty-Third European Conference on Information Retrieval",
  month = "April",
  pages = "251-263",
  url = "http://www.cs.ox.ac.uk/people/shimon.whiteson/pubs/hofmannecir11.pdf",
}