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author_ss:"Lin, H."
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theme_ss:"Semantisches Umfeld in Indexierung u. Retrieval"
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theme_ss:"Retrievalalgorithmen"
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year_i:[2010 TO 2020}
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Xu, B.; Lin, H.; Lin, Y.: Assessment of learning to rank methods for query expansion (2016)
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1.0 = *:*, product of: 1.0 = boost 1.0 = queryNorm