Porter, M.; Galpin, V.: Relevance feedback in a public access catalogue for a research library : Muscat at the Scott Polar Research Institute (1988)
0.00
0.001964246 = product of:
0.011785476 = sum of:
0.011785476 = product of:
0.035356425 = sum of:
0.035356425 = weight(_text_:22 in 4165) [ClassicSimilarity], result of:
0.035356425 = score(doc=4165,freq=2.0), product of:
0.114229515 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.032619953 = 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)
0.33333334 = coord(1/3)
0.16666667 = coord(1/6)
- Source
- Program. 22(1988), S.1-20