Porter, M.; Galpin, V.: Relevance feedback in a public access catalogue for a research library : Muscat at the Scott Polar Research Institute (1988)
0.01
0.00835369 = product of:
0.025061069 = sum of:
0.025061069 = product of:
0.050122138 = sum of:
0.050122138 = weight(_text_:22 in 4165) [ClassicSimilarity], result of:
0.050122138 = score(doc=4165,freq=2.0), product of:
0.16193457 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046242844 = queryNorm
0.30952093 = fieldWeight in 4165, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0625 = fieldNorm(doc=4165)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Source
- Program. 22(1988), S.1-20