Gratch, B.; Settel, B.; Atherton, P.: Characteristics of book indexes for subject retrieval in the humanities and social sciences (1978)
0.04
0.035309397 = product of:
0.07061879 = sum of:
0.025779642 = weight(_text_:for in 1061) [ClassicSimilarity], result of:
0.025779642 = score(doc=1061,freq=2.0), product of:
0.08876751 = queryWeight, product of:
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.047278564 = queryNorm
0.29041752 = fieldWeight in 1061, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.109375 = fieldNorm(doc=1061)
0.04483915 = product of:
0.0896783 = sum of:
0.0896783 = weight(_text_:22 in 1061) [ClassicSimilarity], result of:
0.0896783 = score(doc=1061,freq=2.0), product of:
0.16556148 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.047278564 = queryNorm
0.5416616 = fieldWeight in 1061, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.109375 = fieldNorm(doc=1061)
0.5 = coord(1/2)
0.5 = coord(2/4)
- Source
- Indexer. 11(1978), S.14-22