Liebenau, J.; Backhouse, J.: Understanding information : an introduction (1990)
0.19
0.18728817 = product of:
0.37457633 = sum of:
0.20681664 = weight(_text_:storage in 7) [ClassicSimilarity], result of:
0.20681664 = score(doc=7,freq=4.0), product of:
0.24291874 = queryWeight, product of:
5.4488444 = idf(docFreq=516, maxDocs=44218)
0.0445817 = queryNorm
0.85138196 = fieldWeight in 7, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
5.4488444 = idf(docFreq=516, maxDocs=44218)
0.078125 = fieldNorm(doc=7)
0.06373867 = weight(_text_:retrieval in 7) [ClassicSimilarity], result of:
0.06373867 = score(doc=7,freq=4.0), product of:
0.13485585 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0445817 = queryNorm
0.47264296 = fieldWeight in 7, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.078125 = fieldNorm(doc=7)
0.104021 = weight(_text_:systems in 7) [ClassicSimilarity], result of:
0.104021 = score(doc=7,freq=10.0), product of:
0.13700733 = queryWeight, product of:
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.0445817 = queryNorm
0.75923675 = fieldWeight in 7, product of:
3.1622777 = tf(freq=10.0), with freq of:
10.0 = termFreq=10.0
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.078125 = fieldNorm(doc=7)
0.5 = coord(3/6)
- LCSH
- Information storage and retrieval systems
- PRECIS
- Information systems
- Series
- Macmillan information systems series
- Subject
- Information storage and retrieval systems
Information systems
