Marchionini, G.; Fox, E.A.: Progress toward Digital Libraries : augmentation through integration (1999)
0.03
0.030157281 = product of:
0.120629124 = sum of:
0.120629124 = weight(_text_:digital in 7198) [ClassicSimilarity], result of:
0.120629124 = score(doc=7198,freq=2.0), product of:
0.19770671 = queryWeight, product of:
3.944552 = idf(docFreq=2326, maxDocs=44218)
0.050121464 = queryNorm
0.61014175 = fieldWeight in 7198, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.944552 = idf(docFreq=2326, maxDocs=44218)
0.109375 = fieldNorm(doc=7198)
0.25 = coord(1/4)