Search (2 results, page 1 of 1)
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theme_ss:"Semantisches Umfeld in Indexierung u. Retrieval"
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year_i:[1980 TO 1990}
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type_ss:"a"
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language_ss:"e"
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Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983)
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1.0 = *:*, product of: 1.0 = boost 1.0 = queryNorm
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Robertson, S.E.: On relevance weight estimation and query expansion (1986)
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1.0 = *:*, product of: 1.0 = boost 1.0 = queryNorm