Drabenstott, K.M.; Vizine-Goetz, D.: Using subject headings for online retrieval : theory, practice and potential (1994)
0.04
0.042096518 = sum of:
0.036390316 = product of:
0.18195157 = sum of:
0.18195157 = weight(_text_:goetz in 386) [ClassicSimilarity], result of:
0.18195157 = score(doc=386,freq=2.0), product of:
0.36181444 = queryWeight, product of:
7.5860133 = idf(docFreq=60, maxDocs=44218)
0.04769494 = queryNorm
0.5028864 = fieldWeight in 386, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
7.5860133 = idf(docFreq=60, maxDocs=44218)
0.046875 = fieldNorm(doc=386)
0.2 = coord(1/5)
0.005706203 = product of:
0.011412406 = sum of:
0.011412406 = weight(_text_:d in 386) [ClassicSimilarity], result of:
0.011412406 = score(doc=386,freq=2.0), product of:
0.09061428 = queryWeight, product of:
1.899872 = idf(docFreq=17979, maxDocs=44218)
0.04769494 = queryNorm
0.1259449 = fieldWeight in 386, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.899872 = idf(docFreq=17979, maxDocs=44218)
0.046875 = fieldNorm(doc=386)
0.5 = coord(1/2)