-
Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983)
0.04
0.03904413 = product of:
0.097610325 = sum of:
0.06209887 = weight(_text_:u in 2134) [ClassicSimilarity], result of:
0.06209887 = score(doc=2134,freq=2.0), product of:
0.12260637 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.03744341 = queryNorm
0.50648975 = fieldWeight in 2134, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.109375 = fieldNorm(doc=2134)
0.035511456 = product of:
0.07102291 = sum of:
0.07102291 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
0.07102291 = score(doc=2134,freq=2.0), product of:
0.13112044 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03744341 = 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)
0.5 = coord(1/2)
0.4 = coord(2/5)
- Date
- 30. 3.2001 13:32:22
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Salton, G.; Buckley, C.: Term-weighting approaches in automatic text retrieval (1988)
0.01
0.01064552 = product of:
0.0532276 = sum of:
0.0532276 = weight(_text_:u in 1938) [ClassicSimilarity], result of:
0.0532276 = score(doc=1938,freq=2.0), product of:
0.12260637 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.03744341 = queryNorm
0.43413407 = fieldWeight in 1938, 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=1938)
0.2 = coord(1/5)
- Footnote
- Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.323-328.
-
Voorhees, E.M.: Implementing agglomerative hierarchic clustering algorithms for use in document retrieval (1986)
0.01
0.008116905 = product of:
0.040584523 = sum of:
0.040584523 = product of:
0.08116905 = sum of:
0.08116905 = weight(_text_:22 in 402) [ClassicSimilarity], result of:
0.08116905 = score(doc=402,freq=2.0), product of:
0.13112044 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03744341 = queryNorm
0.61904186 = fieldWeight in 402, 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=402)
0.5 = coord(1/2)
0.2 = coord(1/5)
- Source
- Information processing and management. 22(1986) no.6, S.465-476
-
Fuhr, N.: Ranking-Experimente mit gewichteter Indexierung (1986)
0.01
0.006087678 = product of:
0.03043839 = sum of:
0.03043839 = product of:
0.06087678 = sum of:
0.06087678 = weight(_text_:22 in 58) [ClassicSimilarity], result of:
0.06087678 = score(doc=58,freq=2.0), product of:
0.13112044 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03744341 = queryNorm
0.46428138 = fieldWeight in 58, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.09375 = fieldNorm(doc=58)
0.5 = coord(1/2)
0.2 = coord(1/5)
- Date
- 14. 6.2015 22:12:44
-
Fuhr, N.: Rankingexperimente mit gewichteter Indexierung (1986)
0.01
0.006087678 = product of:
0.03043839 = sum of:
0.03043839 = product of:
0.06087678 = sum of:
0.06087678 = weight(_text_:22 in 2051) [ClassicSimilarity], result of:
0.06087678 = score(doc=2051,freq=2.0), product of:
0.13112044 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03744341 = queryNorm
0.46428138 = fieldWeight in 2051, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.09375 = fieldNorm(doc=2051)
0.5 = coord(1/2)
0.2 = coord(1/5)
- Date
- 14. 6.2015 22:12:56