Cheng, P.T.K.; Wu, A.K.W.: ACS: an automatic classification system (1995)
0.00
0.0021007177 = product of:
0.012604306 = sum of:
0.012604306 = product of:
0.025208613 = sum of:
0.025208613 = weight(_text_:4 in 2188) [ClassicSimilarity], result of:
0.025208613 = score(doc=2188,freq=2.0), product of:
0.105097495 = queryWeight, product of:
2.7136984 = idf(docFreq=7967, maxDocs=44218)
0.03872851 = queryNorm
0.23985931 = fieldWeight in 2188, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.7136984 = idf(docFreq=7967, maxDocs=44218)
0.0625 = fieldNorm(doc=2188)
0.5 = coord(1/2)
0.16666667 = coord(1/6)
- Source
- Journal of information science. 21(1995) no.4, S.289-299