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author_ss:"Robertson, M."
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author_ss:"Willett, P."
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language_ss:"e"
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theme_ss:"Retrievalalgorithmen"
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Robertson, M.; Willett, P.: ¬An upperbound to the performance of ranked output searching : optimal weighting of query terms using a genetic algorithms (1996)
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1.0 = *:*, product of: 1.0 = boost 1.0 = queryNorm