Fenichel, C.H.: Online information retrieval : identification of measures that discriminate among users with different levels of types of experience (1979)
0.01
0.011429808 = product of:
0.06857885 = sum of:
0.06857885 = weight(_text_:retrieval in 5365) [ClassicSimilarity], result of:
0.06857885 = score(doc=5365,freq=2.0), product of:
0.12824841 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.042397358 = queryNorm
0.5347345 = fieldWeight in 5365, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.125 = fieldNorm(doc=5365)
0.16666667 = coord(1/6)
