-
Hersh, W.R.; Hickam, D.H.: ¬A comparison of two methods for indexing and retrieval from a full-text medical database (1992)
0.00
0.001349134 = product of:
0.002698268 = sum of:
0.002698268 = product of:
0.005396536 = sum of:
0.005396536 = weight(_text_:e in 4526) [ClassicSimilarity], result of:
0.005396536 = score(doc=4526,freq=2.0), product of:
0.048544887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.03377341 = queryNorm
0.1111659 = fieldWeight in 4526, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.0546875 = fieldNorm(doc=4526)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Language
- e
-
Lu, K.; Mao, J.: ¬An automatic approach to weighted subject indexing : an empirical study in the biomedical domain (2015)
0.00
9.6366723E-4 = product of:
0.0019273345 = sum of:
0.0019273345 = product of:
0.003854669 = sum of:
0.003854669 = weight(_text_:e in 4005) [ClassicSimilarity], result of:
0.003854669 = score(doc=4005,freq=2.0), product of:
0.048544887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.03377341 = queryNorm
0.07940422 = fieldWeight in 4005, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.0390625 = fieldNorm(doc=4005)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Language
- e
-
Lu, K.; Mao, J.; Li, G.: Toward effective automated weighted subject indexing : a comparison of different approaches in different environments (2018)
0.00
9.6366723E-4 = product of:
0.0019273345 = sum of:
0.0019273345 = product of:
0.003854669 = sum of:
0.003854669 = weight(_text_:e in 4292) [ClassicSimilarity], result of:
0.003854669 = score(doc=4292,freq=2.0), product of:
0.048544887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.03377341 = queryNorm
0.07940422 = fieldWeight in 4292, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.0390625 = fieldNorm(doc=4292)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Language
- e