-
Walker, S.; DeVere, R.: Improving subject retrieval in online catalogues : T.2: Relevance feedback and query expansion (1990)
0.01
0.013506081 = product of:
0.027012162 = sum of:
0.027012162 = product of:
0.054024324 = sum of:
0.054024324 = weight(_text_:u in 1816) [ClassicSimilarity], result of:
0.054024324 = score(doc=1816,freq=2.0), product of:
0.14932987 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.045604642 = queryNorm
0.3617784 = fieldWeight in 1816, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.078125 = fieldNorm(doc=1816)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Külper, U.; Will, G.: ¬Das Projekt Bücherschatz : interdisziplinäre und partizipative Entwicklung eines kindgerechten Bibliotheks-Online-Kataloges (1996)
0.01
0.009454256 = product of:
0.018908512 = sum of:
0.018908512 = product of:
0.037817024 = sum of:
0.037817024 = weight(_text_:u in 4725) [ClassicSimilarity], result of:
0.037817024 = score(doc=4725,freq=2.0), product of:
0.14932987 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.045604642 = queryNorm
0.25324488 = fieldWeight in 4725, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.0546875 = fieldNorm(doc=4725)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Hancock-Beaulieu, M.; Fieldhouse, M.; Do, T.: ¬A graphical interface for OKAPI : the design and evaluation of an online catalogue system with direct manipulation interaction for subject access (1994)
0.01
0.009454256 = product of:
0.018908512 = sum of:
0.018908512 = product of:
0.037817024 = sum of:
0.037817024 = weight(_text_:u in 1318) [ClassicSimilarity], result of:
0.037817024 = score(doc=1318,freq=2.0), product of:
0.14932987 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.045604642 = queryNorm
0.25324488 = fieldWeight in 1318, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.0546875 = fieldNorm(doc=1318)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Beaulieu, M.; Payne, A.; Do, T.; Jones, S.: ENQUIRE Okapi project (1996)
0.01
0.008103648 = product of:
0.016207296 = sum of:
0.016207296 = product of:
0.032414593 = sum of:
0.032414593 = weight(_text_:u in 3369) [ClassicSimilarity], result of:
0.032414593 = score(doc=3369,freq=2.0), product of:
0.14932987 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.045604642 = queryNorm
0.21706703 = fieldWeight in 3369, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.046875 = fieldNorm(doc=3369)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval