-
Rijsbergen, C.J. van: Retrieval effectiveness (1981)
0.02
0.016690949 = product of:
0.033381898 = sum of:
0.033381898 = product of:
0.10014569 = sum of:
0.10014569 = weight(_text_:k in 3147) [ClassicSimilarity], result of:
0.10014569 = score(doc=3147,freq=2.0), product of:
0.15869603 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.04445543 = queryNorm
0.63105357 = fieldWeight in 3147, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.125 = fieldNorm(doc=3147)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Source
- Information retrieval experiment. Ed.: K. Sparck Jones
-
Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983)
0.01
0.014053894 = product of:
0.028107788 = sum of:
0.028107788 = product of:
0.08432336 = sum of:
0.08432336 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
0.08432336 = score(doc=2134,freq=2.0), product of:
0.15567535 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04445543 = 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)
0.5 = coord(1/2)
- Date
- 30. 3.2001 13:32:22
-
Rijsbergen, C.J. van: ¬A non-classical logic for information retrieval (1986)
0.01
0.012518212 = product of:
0.025036424 = sum of:
0.025036424 = product of:
0.07510927 = sum of:
0.07510927 = weight(_text_:k in 1933) [ClassicSimilarity], result of:
0.07510927 = score(doc=1933,freq=2.0), product of:
0.15869603 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.04445543 = queryNorm
0.47329018 = fieldWeight in 1933, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.09375 = fieldNorm(doc=1933)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Footnote
- Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann. 1997. S.268-272.
-
Crestani, F.; Ruthven, I.; Sanderson, M.; Rijsbergen, C.J. van: ¬The troubles with using a logical model of IR on a large collection of documents : experimenting retrieval by logical imaging on TREC (1996)
0.01
0.010431843 = product of:
0.020863686 = sum of:
0.020863686 = product of:
0.06259105 = sum of:
0.06259105 = weight(_text_:k in 7522) [ClassicSimilarity], result of:
0.06259105 = score(doc=7522,freq=2.0), product of:
0.15869603 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.04445543 = queryNorm
0.39440846 = fieldWeight in 7522, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.078125 = fieldNorm(doc=7522)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Source
- The Fourth Text Retrieval Conference (TREC-4). Ed.: K. Harman
-
Rijsbergen, C.J. van: ¬A test for the separation of relevant and non-relevant documents in experimental retrieval collections (1973)
0.01
0.008030796 = product of:
0.016061593 = sum of:
0.016061593 = product of:
0.04818478 = sum of:
0.04818478 = weight(_text_:22 in 5002) [ClassicSimilarity], result of:
0.04818478 = score(doc=5002,freq=2.0), product of:
0.15567535 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04445543 = 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)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Date
- 19. 3.1996 11:22:12
-
Sparck Jones, K.; Rijsbergen, C.J. van: Progress in documentation : Information retrieval test collection (1976)
0.01
0.0073022908 = product of:
0.0146045815 = sum of:
0.0146045815 = product of:
0.043813743 = sum of:
0.043813743 = weight(_text_:k in 4161) [ClassicSimilarity], result of:
0.043813743 = score(doc=4161,freq=2.0), product of:
0.15869603 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.04445543 = queryNorm
0.27608594 = fieldWeight in 4161, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.0546875 = fieldNorm(doc=4161)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Crestani, F.; Rijsbergen, C.J. van: Information retrieval by imaging (1996)
0.01
0.0060230973 = product of:
0.012046195 = sum of:
0.012046195 = product of:
0.036138583 = sum of:
0.036138583 = weight(_text_:22 in 6967) [ClassicSimilarity], result of:
0.036138583 = score(doc=6967,freq=2.0), product of:
0.15567535 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04445543 = 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)
0.5 = coord(1/2)
- 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
