\begin{thebibliography}{10}

\bibitem{ImageCLEF}
Image{{CLEF}} 2009 photo retrieval task.
\newblock http://www.imageclef.org/2009/photo.

\bibitem{Agrawal09}
Rakesh Agrawal, Sreenivas Gollapudi, Alan Halverson, and Samuel Ieong.
\newblock Diversifying search results.
\newblock In {\em Proceedings of WSDM}, pages 5--14, 2009.

\bibitem{BBRreport}
Paul~N. Bennett, Ben Carterette, Olivier Chapelle, and Thorsten Joachims.
\newblock Beyond binary relevance: Preferences, diversity, and set-level
  judgments.
\newblock {\em SIGIR Forum}, 42(2):53--58, December 2008.

\bibitem{ClarkeEtAl08}
Charles L.~A. Clarke, Maheedhar Kolla, Gordon~V. Cormack, Olga Vechtomova, Azin
  Ashkan, Stefan B\"uttcher, and Ian MacKinnon.
\newblock Novelty and diversity in information retrieval evaluation.
\newblock In {\em Proceedings of SIGIR}, pages 659--666, 2008.

\bibitem{ClarkeEtAl09}
Charles~L.A. Clarke, Maheedhar Kolla, and Olga Vechtomova.
\newblock An effectiveness measure for ambiguous and underspecified queries.
\newblock In {\em Proceedings of ICTIR}, pages 188--199, 2009.

\bibitem{El-AriniVSG09}
Khalid El-Arini, Gaurav Veda, Dafna Shahaf, and Carlos Guestrin.
\newblock Turning down the noise in the blogosphere.
\newblock In {\em Proceedings of KDD}, pages 289--298, 2009.

\bibitem{GollapudiSharma09}
Sreenivas Gollapudi and Aneesh Sharma.
\newblock An axiomatic approach to result diversification.
\newblock In {\em Proceedings of WWW}, pages 381--390, 2009.

\bibitem{LaffertyZhai01}
John Lafferty and ChengXiang Zhai.
\newblock Document language models, query models, and risk minimization for
  information retrieval.
\newblock In {\em Proceedings of SIGIR}, pages 111--119, 2001.

\bibitem{ShenZhai05}
Xuehua Shen and ChengXiang Zhai.
\newblock Active feedback in ad hoc information retrieval.
\newblock In {\em Proceedings of SIGIR}, pages 59--66, 2005.

\bibitem{ThomasHawking06}
Paul Thomas and David Hawking.
\newblock Evaluation by comparing result sets in context.
\newblock In {\em Proceedings of CIKM}, pages 94--101, 2006.

\bibitem{YueJ08}
Yisong Yue and Thorsten Joachims.
\newblock Predicting diverse subsets using structural svms.
\newblock In {\em Proceedings of ICML}, pages 1224--1231, 2008.

\bibitem{ZhaiEtAl03}
ChengXiang Zhai, William Cohen, and John Lafferty.
\newblock Beyond independent relevance: Methods and evaluation metrics for
  subtopic retrieval.
\newblock In {\em Proceedings of SIGIR}, pages 10--17, 2003.

\bibitem{ZhaiLafferty06}
ChengXiang Zhai and John Lafferty.
\newblock A risk minimization framework for information retrieval.
\newblock {\em Information Processing and Management}, 42(1):31--55, Jan 2006.

\bibitem{Goldberg07}
Xiaojin Zhu, Andrew~B. Goldberg, Jurgen~Van Gael, and David Andrzejewski.
\newblock Improving diversity in ranking using absorbing random walks.
\newblock In {\em Proceedings of NAACL HTL}, pages 97--104, 2007.

\end{thebibliography}