Lancaster, F.W.; Warner, A.J.: Information retrieval today (1993)
0.01
0.011436489 = product of:
0.0514642 = sum of:
0.010584532 = weight(_text_:of in 4607) [ClassicSimilarity], result of:
0.010584532 = score(doc=4607,freq=2.0), product of:
0.061262865 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.03917671 = queryNorm
0.17277241 = fieldWeight in 4607, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.078125 = fieldNorm(doc=4607)
0.040879667 = weight(_text_:systems in 4607) [ClassicSimilarity], result of:
0.040879667 = score(doc=4607,freq=2.0), product of:
0.12039685 = queryWeight, product of:
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.03917671 = queryNorm
0.339541 = fieldWeight in 4607, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.078125 = fieldNorm(doc=4607)
0.22222222 = coord(2/9)
- Content
- Es handelt sich um die 3. Aufl. von: 'Information retrieval systems: characteristics, testing and evaluation' des ersten Autors
- Footnote
- Rez. in: Information processing and management 30(1994) no.4, S.581-582 (L. Schamber); Journal of documentation 51(1995) no.1, S.76-77 (B. Frohmann)