-
Järvelin, K.; Kristensen, J.; Niemi, T.; Sormunen, E.; Keskustalo, H.: ¬A deductive data model for query expansion (1996)
0.03
0.026670225 = product of:
0.05334045 = sum of:
0.05334045 = sum of:
0.0102637205 = weight(_text_:e in 2230) [ClassicSimilarity], result of:
0.0102637205 = score(doc=2230,freq=4.0), product of:
0.07616667 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.052990302 = queryNorm
0.13475344 = fieldWeight in 2230, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.046875 = fieldNorm(doc=2230)
0.043076728 = weight(_text_:22 in 2230) [ClassicSimilarity], result of:
0.043076728 = score(doc=2230,freq=2.0), product of:
0.18556301 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.052990302 = queryNorm
0.23214069 = fieldWeight in 2230, 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=2230)
0.5 = coord(1/2)
- Language
- e
- Source
- Proceedings of the 19th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (ACM SIGIR '96), Zürich, Switzerland, August 18-22, 1996. Eds.: H.P. Frei et al
-
Kristensen, J.; Järvelin, K.: ¬The effectiveness of a searching thesaurus in free-text searching in a full-text database (1990)
0.00
0.0048383637 = product of:
0.0096767275 = sum of:
0.0096767275 = product of:
0.019353455 = sum of:
0.019353455 = weight(_text_:e in 2043) [ClassicSimilarity], result of:
0.019353455 = score(doc=2043,freq=2.0), product of:
0.07616667 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.052990302 = queryNorm
0.2540935 = fieldWeight in 2043, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.125 = fieldNorm(doc=2043)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Language
- e
-
Järvelin, K.; Vakkari, P.: ¬The evolution of library and information science 1965-1985 : a content analysis of journal titles (1993)
0.00
0.004233568 = product of:
0.008467136 = sum of:
0.008467136 = product of:
0.016934272 = sum of:
0.016934272 = weight(_text_:e in 4649) [ClassicSimilarity], result of:
0.016934272 = score(doc=4649,freq=2.0), product of:
0.07616667 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.052990302 = queryNorm
0.2223318 = fieldWeight in 4649, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.109375 = fieldNorm(doc=4649)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Language
- e
-
Järvelin, K.; Niemi, T.: Deductive information retrieval based on classifications (1993)
0.00
0.0018143863 = product of:
0.0036287727 = sum of:
0.0036287727 = product of:
0.0072575454 = sum of:
0.0072575454 = weight(_text_:e in 2229) [ClassicSimilarity], result of:
0.0072575454 = score(doc=2229,freq=2.0), product of:
0.07616667 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.052990302 = queryNorm
0.09528506 = fieldWeight in 2229, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.046875 = fieldNorm(doc=2229)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Language
- e