Vakkari, P.; Jones, S.; MacFarlane, A.; Sormunen, E.: Query exhaustivity, relevance feedback and search success in automatic and interactive query expansion (2004)
0.01
0.008217027 = product of:
0.04930216 = sum of:
0.04930216 = weight(_text_:documentation in 4435) [ClassicSimilarity], result of:
0.04930216 = score(doc=4435,freq=2.0), product of:
0.17080891 = queryWeight, product of:
4.354108 = idf(docFreq=1544, maxDocs=44218)
0.03922937 = queryNorm
0.28863928 = fieldWeight in 4435, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.354108 = idf(docFreq=1544, maxDocs=44218)
0.046875 = fieldNorm(doc=4435)
0.16666667 = coord(1/6)
- Source
- Journal of documentation. 60(2004) no.2, S.109-127
