Malone, L.C.; Driscoll, J.R.; Pepe, J.W.: Modeling the performance of an automated keywording system (1991)
0.05
0.046656806 = product of:
0.09331361 = sum of:
0.09331361 = product of:
0.18662722 = sum of:
0.18662722 = weight(_text_:151 in 6682) [ClassicSimilarity], result of:
0.18662722 = score(doc=6682,freq=2.0), product of:
0.32491833 = queryWeight, product of:
6.49839 = idf(docFreq=180, maxDocs=44218)
0.04999982 = queryNorm
0.57438195 = fieldWeight in 6682, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
6.49839 = idf(docFreq=180, maxDocs=44218)
0.0625 = fieldNorm(doc=6682)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Information processing and management. 27(1991) nos.2/3, S.145-151