Lancaster, F.W.: Vocabulary control in information retrieval systems (1977)
0.03
0.026252195 = product of:
0.13126098 = sum of:
0.13126098 = weight(_text_:7 in 1774) [ClassicSimilarity], result of:
0.13126098 = score(doc=1774,freq=2.0), product of:
0.22414011 = queryWeight, product of:
3.3127685 = idf(docFreq=4376, maxDocs=44218)
0.06765945 = queryNorm
0.5856202 = fieldWeight in 1774, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3127685 = idf(docFreq=4376, maxDocs=44218)
0.125 = fieldNorm(doc=1774)
0.2 = coord(1/5)
- Source
- Advances in librarianship. 7(1977), S.1-40