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- ghbs_ss%3a%2011 %28W%29%22 2
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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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- Date
- 30. 3.2001 13:32:22
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Rijsbergen, C.J. van: ¬A non-classical logic for information retrieval (1986)
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0.012587005 = product of: 0.02517401 = sum of: 0.02517401 = product of: 0.07552203 = sum of: 0.07552203 = weight(_text_:29 in 1933) [ClassicSimilarity], result of: 0.07552203 = score(doc=1933,freq=2.0), product of: 0.16193105 = queryWeight, product of: 3.5176873 = idf(docFreq=3565, maxDocs=44218) 0.046033382 = queryNorm 0.46638384 = fieldWeight in 1933, product of: 1.4142135 = tf(freq=2.0), with freq of: 2.0 = termFreq=2.0 3.5176873 = idf(docFreq=3565, maxDocs=44218) 0.09375 = fieldNorm(doc=1933) 0.33333334 = coord(1/3) 0.5 = coord(1/2)
- Source
- Computer journal. 29(1986), S.481-485