Schabas, A.H.: ¬A comparative evaluation of the retrieval effectiveness of titles, Library of Congress Subject Headings and PRECIS strings for computer searching of UK MARC data (1979)
0.00
0.0024689573 = product of:
0.0049379147 = sum of:
0.0049379147 = product of:
0.009875829 = sum of:
0.009875829 = weight(_text_:e in 5277) [ClassicSimilarity], result of:
0.009875829 = score(doc=5277,freq=2.0), product of:
0.05182255 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.036053732 = queryNorm
0.19057012 = fieldWeight in 5277, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.09375 = fieldNorm(doc=5277)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Language
- e