Dong, X.; Su, L.T.: Search engines on the World Wide Web and information retrieval from the Internet : a review and evaluation (1997)
0.01
0.0069363764 = product of:
0.034681883 = sum of:
0.034681883 = weight(_text_:retrieval in 155) [ClassicSimilarity], result of:
0.034681883 = score(doc=155,freq=2.0), product of:
0.12971628 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.042882618 = queryNorm
0.26736724 = fieldWeight in 155, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0625 = fieldNorm(doc=155)
0.2 = coord(1/5)