Vickery, B.C.: Classificatory principles in natural language indexing systems (1976)
0.01
0.013291041 = product of:
0.039873123 = sum of:
0.039873123 = product of:
0.07974625 = sum of:
0.07974625 = weight(_text_:classification in 1276) [ClassicSimilarity], result of:
0.07974625 = score(doc=1276,freq=2.0), product of:
0.16188543 = queryWeight, product of:
3.1847067 = idf(docFreq=4974, maxDocs=44218)
0.05083213 = queryNorm
0.49260917 = fieldWeight in 1276, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1847067 = idf(docFreq=4974, maxDocs=44218)
0.109375 = fieldNorm(doc=1276)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Source
- Classification in the 1970s: a second look. Rev. ed. Ed.: A. Maltby