Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983)
0.05
0.049302004 = product of:
0.147906 = sum of:
0.147906 = product of:
0.22185901 = sum of:
0.12507877 = weight(_text_:retrieval in 2134) [ClassicSimilarity], result of:
0.12507877 = score(doc=2134,freq=6.0), product of:
0.15433937 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.051022716 = queryNorm
0.8104139 = fieldWeight in 2134, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.109375 = fieldNorm(doc=2134)
0.09678023 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
0.09678023 = score(doc=2134,freq=2.0), product of:
0.17867287 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051022716 = 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)
0.6666667 = coord(2/3)
0.33333334 = coord(1/3)
- Date
- 30. 3.2001 13:32:22
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval