Jones, S.; Paynter, G.W.: Automatic extractionof document keyphrases for use in digital libraries : evaluations and applications (2002)
0.00
0.0012479905 = product of:
0.007487943 = sum of:
0.007487943 = weight(_text_:information in 601) [ClassicSimilarity], result of:
0.007487943 = score(doc=601,freq=2.0), product of:
0.0772133 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.043984205 = queryNorm
0.09697737 = fieldWeight in 601, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0390625 = fieldNorm(doc=601)
0.16666667 = coord(1/6)
- Source
- Journal of the American Society for Information Science and technology. 53(2002) no.8, S.653-677