1. Relevance assessment
2. Redundant documents and search effectiveness
3. Jamie Callan. 2012. The lemur project and its clueweb12 dataset. In Invited talk at the SIGIR 2012 Workshop on Open-Source Information Retrieval. Jamie Callan. 2012. The lemur project and its clueweb12 dataset. In Invited talk at the SIGIR 2012 Workshop on Open-Source Information Retrieval.
4. Jamie Callan , Mark Hoy , Changkuk Yoo , and Le Zhao . 2009. The clueweb09 dataset , 2009 . URL http://boston. lti. cs. cmu. edu/Data/clueweb09 (2009). Jamie Callan, Mark Hoy, Changkuk Yoo, and Le Zhao. 2009. The clueweb09 dataset, 2009. URL http://boston. lti. cs. cmu. edu/Data/clueweb09 (2009).