-
Robertson, S.E.: Some recent theories and models in information retrieval (1980)
0.01
0.014897652 = product of:
0.029795304 = sum of:
0.029795304 = product of:
0.059590608 = sum of:
0.059590608 = weight(_text_:u in 1326) [ClassicSimilarity], result of:
0.059590608 = score(doc=1326,freq=2.0), product of:
0.13726315 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.041919522 = queryNorm
0.43413407 = fieldWeight in 1326, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.09375 = fieldNorm(doc=1326)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Theory and application of information research. Proc. of the 2nd Int. Research Forum on Information Science, 3.-6.8.1977, Copenhagen. Ed.: O. Harbo u. L. Kajberg
-
Robertson, S.E.: ¬The probability ranking principle in IR (1977)
0.01
0.014897652 = product of:
0.029795304 = sum of:
0.029795304 = product of:
0.059590608 = sum of:
0.059590608 = weight(_text_:u in 1935) [ClassicSimilarity], result of:
0.059590608 = score(doc=1935,freq=2.0), product of:
0.13726315 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.041919522 = queryNorm
0.43413407 = fieldWeight in 1935, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.09375 = fieldNorm(doc=1935)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Footnote
- Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willet. San Francisco: Morgan Kaufmann 1997. S.281-286.
-
Beaulieu, M.M.; Gatford, M.; Huang, X.; Robertson, S.E.; Walker, S.; Williams, P.: Okapi an TREC-5 (1997)
0.01
0.014897652 = product of:
0.029795304 = sum of:
0.029795304 = product of:
0.059590608 = sum of:
0.059590608 = weight(_text_:u in 3097) [ClassicSimilarity], result of:
0.059590608 = score(doc=3097,freq=2.0), product of:
0.13726315 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.041919522 = queryNorm
0.43413407 = fieldWeight in 3097, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.09375 = fieldNorm(doc=3097)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- The Fifth Text Retrieval Conference (TREC-5). Ed.: E.M. Voorhees u. D.K. Harman
-
Robertson, S.E.: On relevance weight estimation and query expansion (1986)
0.01
0.012414711 = product of:
0.024829421 = sum of:
0.024829421 = product of:
0.049658842 = sum of:
0.049658842 = weight(_text_:u in 3875) [ClassicSimilarity], result of:
0.049658842 = score(doc=3875,freq=2.0), product of:
0.13726315 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.041919522 = queryNorm
0.3617784 = fieldWeight in 3875, 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=3875)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Robertson, S.E.; Walker, S.: Some simple effective approximations to the 2-Poisson molde for probabilisitc weighted retrieval (1979)
0.01
0.012414711 = product of:
0.024829421 = sum of:
0.024829421 = product of:
0.049658842 = sum of:
0.049658842 = weight(_text_:u in 1940) [ClassicSimilarity], result of:
0.049658842 = score(doc=1940,freq=2.0), product of:
0.13726315 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.041919522 = queryNorm
0.3617784 = fieldWeight in 1940, 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=1940)
0.5 = coord(1/2)
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.345-453.
-
MacFarlane, A.; Robertson, S.E.; McCann, J.A.: Parallel computing for passage retrieval (2004)
0.01
0.011359033 = product of:
0.022718066 = sum of:
0.022718066 = product of:
0.045436133 = sum of:
0.045436133 = weight(_text_:22 in 5108) [ClassicSimilarity], result of:
0.045436133 = score(doc=5108,freq=2.0), product of:
0.14679502 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.041919522 = queryNorm
0.30952093 = fieldWeight in 5108, 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=5108)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 20. 1.2007 18:30:22
-
Robertson, S.E.: On term selection for query expansion (1990)
0.01
0.009931768 = product of:
0.019863537 = sum of:
0.019863537 = product of:
0.039727073 = sum of:
0.039727073 = weight(_text_:u in 2650) [ClassicSimilarity], result of:
0.039727073 = score(doc=2650,freq=2.0), product of:
0.13726315 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.041919522 = queryNorm
0.28942272 = fieldWeight in 2650, 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=2650)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Robertson, S.E.; Walker, S.; Hancock-Beaulieu, M.M.: Large test collection experiments of an operational, interactive system : OKAPI at TREC (1995)
0.01
0.008690298 = product of:
0.017380595 = sum of:
0.017380595 = product of:
0.03476119 = sum of:
0.03476119 = weight(_text_:u in 6964) [ClassicSimilarity], result of:
0.03476119 = score(doc=6964,freq=2.0), product of:
0.13726315 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.041919522 = queryNorm
0.25324488 = fieldWeight in 6964, 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=6964)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Robertson, S.E.: OKAPI at TREC-3 (1995)
0.01
0.008690298 = product of:
0.017380595 = sum of:
0.017380595 = product of:
0.03476119 = sum of:
0.03476119 = weight(_text_:u in 5694) [ClassicSimilarity], result of:
0.03476119 = score(doc=5694,freq=2.0), product of:
0.13726315 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.041919522 = queryNorm
0.25324488 = fieldWeight in 5694, 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=5694)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Vechtomova, O.; Robertson, S.E.: ¬A domain-independent approach to finding related entities (2012)
0.01
0.007448826 = product of:
0.014897652 = sum of:
0.014897652 = product of:
0.029795304 = sum of:
0.029795304 = weight(_text_:u in 2733) [ClassicSimilarity], result of:
0.029795304 = score(doc=2733,freq=2.0), product of:
0.13726315 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.041919522 = queryNorm
0.21706703 = fieldWeight in 2733, 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=2733)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval