Markey, K.; Atherton, P.; Newton, C.: ¬An analysis of controlled vocabulary and free text search statements in online searches (1980)
0.03
0.031313002 = product of:
0.093939 = sum of:
0.093939 = weight(_text_:search in 1401) [ClassicSimilarity], result of:
0.093939 = score(doc=1401,freq=2.0), product of:
0.1747324 = queryWeight, product of:
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.05027291 = queryNorm
0.5376164 = fieldWeight in 1401, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.109375 = fieldNorm(doc=1401)
0.33333334 = coord(1/3)
