University of Twente @ TREC 2009 : Indexing half a billion web pages


The University of Twente participated in three tasks of TREC 2009: the adhoc task, the diversity task and the relevance feedback task. All experiments are performed on the English part of ClueWeb09. We describe our approach to tuning our retrieval system in absence of training data in Section 3. We describe the use of categories and a query log for… (More)

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