Search (2 results, page 1 of 1)
-
MacCain, K.W.: Descriptor and citation retrieval in the medical behavioral sciences literature : retrieval overlaps and novelty distribution (1989)
0.00
0.0010393964 = product of: 0.0020787928 = sum of: 0.0020787928 = product of: 0.0041575856 = sum of: 0.0041575856 = weight(_text_:s in 2290) [ClassicSimilarity], result of: 0.0041575856 = score(doc=2290,freq=2.0), product of: 0.057684682 = queryWeight, product of: 1.0872376 = idf(docFreq=40523, maxDocs=44218) 0.053056188 = queryNorm 0.072074346 = fieldWeight in 2290, product of: 1.4142135 = tf(freq=2.0), with freq of: 2.0 = termFreq=2.0 1.0872376 = idf(docFreq=40523, maxDocs=44218) 0.046875 = fieldNorm(doc=2290) 0.5 = coord(1/2) 0.5 = coord(1/2)
- Source
- Journal of the American Society for Information Science. 40(1989), S.110-114
-
MacCain, K.W.; White, H.D.; Griffith, B.C.: Comparing retrieval performance in online data bases (1987)
0.00
8.6616375E-4 = product of: 0.0017323275 = sum of: 0.0017323275 = product of: 0.003464655 = sum of: 0.003464655 = weight(_text_:s in 1167) [ClassicSimilarity], result of: 0.003464655 = score(doc=1167,freq=2.0), product of: 0.057684682 = queryWeight, product of: 1.0872376 = idf(docFreq=40523, maxDocs=44218) 0.053056188 = queryNorm 0.060061958 = fieldWeight in 1167, product of: 1.4142135 = tf(freq=2.0), with freq of: 2.0 = termFreq=2.0 1.0872376 = idf(docFreq=40523, maxDocs=44218) 0.0390625 = fieldNorm(doc=1167) 0.5 = coord(1/2) 0.5 = coord(1/2)
- Source
- Information processing and management. 23(1987), S.539-553