Lester, M.A.: Coincidence of user vocabulary and Library of Congress Subject Headings : experiments to improve subject access in academic library online catalogs (1989)
0.05
0.047339246 = product of:
0.18935698 = sum of:
0.18935698 = weight(_text_:headings in 2904) [ClassicSimilarity], result of:
0.18935698 = score(doc=2904,freq=2.0), product of:
0.2943326 = queryWeight, product of:
4.8524013 = idf(docFreq=942, maxDocs=44421)
0.0606571 = queryNorm
0.64334357 = fieldWeight in 2904, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.8524013 = idf(docFreq=942, maxDocs=44421)
0.09375 = fieldNorm(doc=2904)
0.25 = coord(1/4)