-
Walker, S.: ¬The Okapi online catalogue research projects (1989)
0.03
0.030162472 = product of:
0.07540618 = sum of:
0.047972776 = weight(_text_:u in 1942) [ClassicSimilarity], result of:
0.047972776 = score(doc=1942,freq=2.0), product of:
0.13260265 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.04049623 = queryNorm
0.3617784 = fieldWeight in 1942, 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=1942)
0.027433401 = product of:
0.054866802 = sum of:
0.054866802 = weight(_text_:22 in 1942) [ClassicSimilarity], result of:
0.054866802 = score(doc=1942,freq=2.0), product of:
0.1418109 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04049623 = queryNorm
0.38690117 = fieldWeight in 1942, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.078125 = fieldNorm(doc=1942)
0.5 = coord(1/2)
0.4 = coord(2/5)
- Date
- 16. 8.1998 11:22:08
- Footnote
- Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.424-435.
-
Walker, S.: Ease of use in online catalogues : a plea for the user (1986)
0.01
0.014455721 = product of:
0.072278604 = sum of:
0.072278604 = weight(_text_:j in 375) [ClassicSimilarity], result of:
0.072278604 = score(doc=375,freq=2.0), product of:
0.12867662 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.04049623 = queryNorm
0.5617073 = fieldWeight in 375, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.125 = fieldNorm(doc=375)
0.2 = coord(1/5)
- Source
- Online public access to library files. Ed.: J. Kinsella
-
Walker, S.; DeVere, R.: Improving subject retrieval in online catalogues : T.2: Relevance feedback and query expansion (1990)
0.01
0.009594555 = product of:
0.047972776 = sum of:
0.047972776 = weight(_text_:u in 1816) [ClassicSimilarity], result of:
0.047972776 = score(doc=1816,freq=2.0), product of:
0.13260265 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.04049623 = 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)
0.2 = coord(1/5)
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Walker, S.: Improving subject access painlessly : recent work on the Okapi online catalogue projects (1988)
0.01
0.0087786885 = product of:
0.04389344 = sum of:
0.04389344 = product of:
0.08778688 = sum of:
0.08778688 = weight(_text_:22 in 7403) [ClassicSimilarity], result of:
0.08778688 = score(doc=7403,freq=2.0), product of:
0.1418109 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04049623 = queryNorm
0.61904186 = fieldWeight in 7403, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.125 = fieldNorm(doc=7403)
0.5 = coord(1/2)
0.2 = coord(1/5)
- Source
- Program. 22(1988), S.21-31
-
Walker, S.: Subject access in online catalogues (1991)
0.01
0.007675644 = product of:
0.03837822 = sum of:
0.03837822 = weight(_text_:u in 5690) [ClassicSimilarity], result of:
0.03837822 = score(doc=5690,freq=2.0), product of:
0.13260265 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.04049623 = queryNorm
0.28942272 = fieldWeight in 5690, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.0625 = fieldNorm(doc=5690)
0.2 = coord(1/5)
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Hancock-Beaulieu, M.; Walker, S.: ¬An evaluation of automatic query expansion in an online library catalogue (1992)
0.01
0.006716188 = product of:
0.03358094 = sum of:
0.03358094 = weight(_text_:u in 2731) [ClassicSimilarity], result of:
0.03358094 = score(doc=2731,freq=2.0), product of:
0.13260265 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.04049623 = queryNorm
0.25324488 = fieldWeight in 2731, 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=2731)
0.2 = coord(1/5)
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval