-
Rijsbergen, C.J. van: ¬A test for the separation of relevant and non-relevant documents in experimental retrieval collections (1973)
0.01
0.0146695925 = product of:
0.05867837 = sum of:
0.05867837 = product of:
0.08801755 = sum of:
0.044207614 = weight(_text_:29 in 5002) [ClassicSimilarity], result of:
0.044207614 = score(doc=5002,freq=2.0), product of:
0.14218207 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.040419187 = queryNorm
0.31092256 = fieldWeight in 5002, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0625 = fieldNorm(doc=5002)
0.043809935 = weight(_text_:22 in 5002) [ClassicSimilarity], result of:
0.043809935 = score(doc=5002,freq=2.0), product of:
0.14154111 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.040419187 = queryNorm
0.30952093 = fieldWeight in 5002, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0625 = fieldNorm(doc=5002)
0.6666667 = coord(2/3)
0.25 = coord(1/4)
- Date
- 19. 3.1996 11:22:12
- Source
- Journal of documentation. 29(1973) no.3, S.251-257
-
Dunlop, M.D.; Rijsbergen, C.J. van: Hypermedia and free text retrieval (1993)
0.01
0.007367936 = product of:
0.029471744 = sum of:
0.029471744 = product of:
0.08841523 = sum of:
0.08841523 = weight(_text_:29 in 4709) [ClassicSimilarity], result of:
0.08841523 = score(doc=4709,freq=2.0), product of:
0.14218207 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.040419187 = queryNorm
0.6218451 = fieldWeight in 4709, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.125 = fieldNorm(doc=4709)
0.33333334 = coord(1/3)
0.25 = coord(1/4)
- Source
- Information processing and management. 29(1993) no.3, S.287-298
-
Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983)
0.01
0.0063889488 = product of:
0.025555795 = sum of:
0.025555795 = product of:
0.07666738 = sum of:
0.07666738 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
0.07666738 = score(doc=2134,freq=2.0), product of:
0.14154111 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.040419187 = queryNorm
0.5416616 = fieldWeight in 2134, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.109375 = fieldNorm(doc=2134)
0.33333334 = coord(1/3)
0.25 = coord(1/4)
- Date
- 30. 3.2001 13:32:22
-
Rijsbergen, C.J. van: ¬A non-classical logic for information retrieval (1986)
0.01
0.0055259517 = product of:
0.022103807 = sum of:
0.022103807 = product of:
0.06631142 = sum of:
0.06631142 = weight(_text_:29 in 1933) [ClassicSimilarity], result of:
0.06631142 = score(doc=1933,freq=2.0), product of:
0.14218207 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.040419187 = queryNorm
0.46638384 = fieldWeight in 1933, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.09375 = fieldNorm(doc=1933)
0.33333334 = coord(1/3)
0.25 = coord(1/4)
- Source
- Computer journal. 29(1986), S.481-485
-
Crestani, F.; Rijsbergen, C.J. van: Information retrieval by imaging (1996)
0.00
0.002738121 = product of:
0.010952484 = sum of:
0.010952484 = product of:
0.03285745 = sum of:
0.03285745 = weight(_text_:22 in 6967) [ClassicSimilarity], result of:
0.03285745 = score(doc=6967,freq=2.0), product of:
0.14154111 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.040419187 = queryNorm
0.23214069 = fieldWeight in 6967, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=6967)
0.33333334 = coord(1/3)
0.25 = coord(1/4)
- Source
- Information retrieval: new systems and current research. Proceedings of the 16th Research Colloquium of the British Computer Society Information Retrieval Specialist Group, Drymen, Scotland, 22-23 Mar 94. Ed.: R. Leon