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author_ss:"Hersh, W."
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author_ss:"Pentecost, J."
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theme_ss:"Retrievalstudien"
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year_i:[1990 TO 2000}
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Hersh, W.; Pentecost, J.; Hickam, D.: ¬A task-oriented approach to information retrieval evaluation : overview and design for empirical testing (1996)
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1.0 = *:*, product of: 1.0 = boost 1.0 = queryNorm