¬The PRECIS system for computer-generated indexes and its use in the British National Bibliography (1972)
0.09
0.086298384 = product of:
0.17259677 = sum of:
0.11685445 = weight(_text_:et in 1268) [ClassicSimilarity], result of:
0.11685445 = score(doc=1268,freq=2.0), product of:
0.22541445 = queryWeight, product of:
4.692005 = idf(docFreq=1101, maxDocs=44218)
0.048042245 = queryNorm
0.5183982 = fieldWeight in 1268, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.692005 = idf(docFreq=1101, maxDocs=44218)
0.078125 = fieldNorm(doc=1268)
0.055742312 = product of:
0.111484624 = sum of:
0.111484624 = weight(_text_:al in 1268) [ClassicSimilarity], result of:
0.111484624 = score(doc=1268,freq=2.0), product of:
0.2201743 = queryWeight, product of:
4.582931 = idf(docFreq=1228, maxDocs=44218)
0.048042245 = queryNorm
0.5063471 = fieldWeight in 1268, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.582931 = idf(docFreq=1228, maxDocs=44218)
0.078125 = fieldNorm(doc=1268)
0.5 = coord(1/2)
0.5 = coord(2/4)
- Source
- Subject retrieval in the seventies: new directions. Proc. of an Int. Symp. ... College Park, May 14-15, 1971. Ed.: H.H. Wellisch et al
