Indri at TREC 2005: Terabyte Track (Notebook Version)

This work details the experiments carried out using the Indri search engine during the TREC 2005 Terabyte Track. Results are presented for each of the three tasks, including eciency , ad hoc, and named page nding. Our eciency runs focused on query optimization techniques, our ad hoc runs look at the importance of term proximity and document quality, and our named-page nding runs investigate the use of document priors and document structure.