Salton, G.; Wong, A.; Yang, C.S.: ¬A vector space model for automatic indexing (1975)
0.01
0.0135957515 = product of:
0.054383006 = sum of:
0.0429143 = weight(_text_:retrieval in 1934) [ClassicSimilarity], result of:
0.0429143 = score(doc=1934,freq=2.0), product of:
0.12840556 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.04244931 = queryNorm
0.33420905 = fieldWeight in 1934, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.078125 = fieldNorm(doc=1934)
0.011468705 = weight(_text_:of in 1934) [ClassicSimilarity], result of:
0.011468705 = score(doc=1934,freq=2.0), product of:
0.06638042 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.04244931 = queryNorm
0.17277241 = fieldWeight in 1934, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.078125 = fieldNorm(doc=1934)
0.25 = coord(2/8)
- Footnote
- Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.273-280.
- Source
- Communications of the Association for Computing Machinery. 18(1975), S.613-620
Salton, G.; Yang, C.S.: On the specification of term values in automatic indexing (1973)
0.01
0.011025215 = product of:
0.04410086 = sum of:
0.025950717 = weight(_text_:of in 5476) [ClassicSimilarity], result of:
0.025950717 = score(doc=5476,freq=4.0), product of:
0.06638042 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.04244931 = queryNorm
0.39093933 = fieldWeight in 5476, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.125 = fieldNorm(doc=5476)
0.018150141 = product of:
0.036300283 = sum of:
0.036300283 = weight(_text_:on in 5476) [ClassicSimilarity], result of:
0.036300283 = score(doc=5476,freq=2.0), product of:
0.09336365 = queryWeight, product of:
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.04244931 = queryNorm
0.3888053 = fieldWeight in 5476, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.125 = fieldNorm(doc=5476)
0.5 = coord(1/2)
0.25 = coord(2/8)
- Source
- Journal of documentation. 29(1973), S.351-372