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Tenopir, C.; Ro, J.S.: Full text databases (1990)
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6.538127E-4 = product of: 0.00980719 = sum of: 0.00980719 = product of: 0.01961438 = sum of: 0.01961438 = weight(_text_:information in 1916) [ClassicSimilarity], result of: 0.01961438 = score(doc=1916,freq=4.0), product of: 0.05107768 = queryWeight, product of: 1.7554779 = idf(docFreq=20772, maxDocs=44218) 0.029096168 = queryNorm 0.3840108 = fieldWeight in 1916, product of: 2.0 = tf(freq=4.0), with freq of: 4.0 = termFreq=4.0 1.7554779 = idf(docFreq=20772, maxDocs=44218) 0.109375 = fieldNorm(doc=1916) 0.5 = coord(1/2) 0.06666667 = coord(1/15)
- Footnote
- Rez. in: Information technology and libraries. 10(1991) S.156-157 (E. Kanter)
- Series
- New directions in information management; 21
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Ro, J.S.: ¬An evaluation of the applicability of ranking algorithms to improve the effectiveness of full-text retrieval : 1. On the effectiveness of full-text retrieval (1988)
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3.9627036E-4 = product of: 0.005944055 = sum of: 0.005944055 = product of: 0.01188811 = sum of: 0.01188811 = weight(_text_:information in 4030) [ClassicSimilarity], result of: 0.01188811 = score(doc=4030,freq=2.0), product of: 0.05107768 = queryWeight, product of: 1.7554779 = idf(docFreq=20772, maxDocs=44218) 0.029096168 = queryNorm 0.23274569 = fieldWeight in 4030, product of: 1.4142135 = tf(freq=2.0), with freq of: 2.0 = termFreq=2.0 1.7554779 = idf(docFreq=20772, maxDocs=44218) 0.09375 = fieldNorm(doc=4030) 0.5 = coord(1/2) 0.06666667 = coord(1/15)
- Source
- Journal of the American Society for Information Science. 39(1988), S.73-78