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Lecture Notes in Computer Science
In this paper we will briefly describe the approaches taken by Berkeley for the main GeoCLEF 2008 tasks (Mono and Bilingual retrieval). The approach this year used probabilistic text retrieval based on logistic regression and incorporating blind relevance feedback for all of the runs and in addition we ran a number of tests combining this type of search with OKAPI BM25 searches using a fusion approach. All translation for bilingual tasks was performed using the LEC Power Translator PC-based MTdoi:10.1007/978-3-642-04447-2_108 fatcat:3h3hbqtz3fad5cjq5qemceygwa