Gomez, L.; Lochbaum, C.C.; Landauer, T.K.: All the right words: finding what you want as an function of richness of indexing vocabulary (1990)
0.02
0.018321294 = product of:
0.07328518 = sum of:
0.050096344 = weight(_text_:retrieval in 154) [ClassicSimilarity], result of:
0.050096344 = score(doc=154,freq=2.0), product of:
0.124912694 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.041294612 = queryNorm
0.40105087 = fieldWeight in 154, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.09375 = fieldNorm(doc=154)
0.023188837 = weight(_text_:of in 154) [ClassicSimilarity], result of:
0.023188837 = score(doc=154,freq=6.0), product of:
0.06457475 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.041294612 = queryNorm
0.3591007 = fieldWeight in 154, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.09375 = fieldNorm(doc=154)
0.25 = coord(2/8)
- Source
- Journal of the American Society for information Science. 41(1990) no.8, S.547-559
- Theme
- Verbale Doksprachen im Online-Retrieval