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- Information retrieval: new systems and current research. Proceedings of the 16th Research Colloquium of the British Computer Society Information Retrieval Specialist Group, Drymen, Scotland, 22-23 Mar 94. Ed.: R. Leon
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Ruthven, I.; Lalmas, M.: Selective relevance feedback using term characteristics (1999)
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Efthimiadis, E.N.: User choices : a new yardstick for the evaluation of ranking algorithms for interactive query expansion (1995)
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Savoy, J.: Ranking schemes in hybrid Boolean systems : a new approach (1997)
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