-
Salton, G.: Thoughts about modern retrieval technologies (1988)
0.02
0.017288294 = product of:
0.069153175 = sum of:
0.069153175 = weight(_text_:services in 1522) [ClassicSimilarity], result of:
0.069153175 = score(doc=1522,freq=4.0), product of:
0.17221296 = queryWeight, product of:
3.6713707 = idf(docFreq=3057, maxDocs=44218)
0.046906993 = queryNorm
0.40155616 = fieldWeight in 1522, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.6713707 = idf(docFreq=3057, maxDocs=44218)
0.0546875 = fieldNorm(doc=1522)
0.25 = coord(1/4)
- Abstract
- Paper presented at the 30th Annual Conference of the National Federation of Astracting and Information Services, Philadelphia, 28 Feb-2 Mar 88. In recent years, the amount and the variety of available machine-readable data, new technologies have been introduced, such as high density storage devices, and fancy graphic displays useful for information transformation and access. New approaches have also been considered for processing the stored data based on the construction of knowledge bases representing the contents and structure of the information, and the use of expert system techniques to control the user-system interactions. Provides a brief evaluation of the new information processing technologies, and of the software methods proposed for information manipulation.
- Source
- Information services and use. 8(1988) no.2/3/4, S.107-113
-
Fuhr, N.; Niewelt, B.: ¬Ein Retrievaltest mit automatisch indexierten Dokumenten (1984)
0.01
0.0111216875 = product of:
0.04448675 = sum of:
0.04448675 = product of:
0.0889735 = sum of:
0.0889735 = weight(_text_:22 in 262) [ClassicSimilarity], result of:
0.0889735 = score(doc=262,freq=2.0), product of:
0.1642603 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046906993 = queryNorm
0.5416616 = fieldWeight in 262, 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=262)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Date
- 20.10.2000 12:22:23
-
Saracevic, T.: On a method for studying the structure and nature of requests in information retrieval (1983)
0.01
0.007944062 = product of:
0.03177625 = sum of:
0.03177625 = product of:
0.0635525 = sum of:
0.0635525 = weight(_text_:22 in 2417) [ClassicSimilarity], result of:
0.0635525 = score(doc=2417,freq=2.0), product of:
0.1642603 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046906993 = queryNorm
0.38690117 = fieldWeight in 2417, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.078125 = fieldNorm(doc=2417)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Pages
- S.22-25
-
Hodges, P.R.: Keyword in title indexes : effectiveness of retrieval in computer searches (1983)
0.01
0.0055608437 = product of:
0.022243375 = sum of:
0.022243375 = product of:
0.04448675 = sum of:
0.04448675 = weight(_text_:22 in 5001) [ClassicSimilarity], result of:
0.04448675 = score(doc=5001,freq=2.0), product of:
0.1642603 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046906993 = queryNorm
0.2708308 = fieldWeight in 5001, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0546875 = fieldNorm(doc=5001)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Date
- 14. 3.1996 13:22:21
-
Sievert, M.E.; McKinin, E.J.: Why full-text misses some relevant documents : an analysis of documents not retrieved by CCML or MEDIS (1989)
0.00
0.004766437 = product of:
0.019065749 = sum of:
0.019065749 = product of:
0.038131498 = sum of:
0.038131498 = weight(_text_:22 in 3564) [ClassicSimilarity], result of:
0.038131498 = score(doc=3564,freq=2.0), product of:
0.1642603 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046906993 = queryNorm
0.23214069 = fieldWeight in 3564, 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=3564)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Date
- 9. 1.1996 10:22:31
-
Lochbaum, K.E.; Streeter, A.R.: Comparing and combining the effectiveness of latent semantic indexing and the ordinary vector space model for information retrieval (1989)
0.00
0.004415923 = product of:
0.017663691 = sum of:
0.017663691 = product of:
0.035327382 = sum of:
0.035327382 = weight(_text_:management in 3458) [ClassicSimilarity], result of:
0.035327382 = score(doc=3458,freq=2.0), product of:
0.15810528 = queryWeight, product of:
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.046906993 = queryNorm
0.22344214 = fieldWeight in 3458, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.046875 = fieldNorm(doc=3458)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Source
- Information processing and management. 25(1989) no.6, S. 665-676
-
MacCain, K.W.; White, H.D.; Griffith, B.C.: Comparing retrieval performance in online data bases (1987)
0.00
0.0036799356 = product of:
0.014719742 = sum of:
0.014719742 = product of:
0.029439485 = sum of:
0.029439485 = weight(_text_:management in 1167) [ClassicSimilarity], result of:
0.029439485 = score(doc=1167,freq=2.0), product of:
0.15810528 = queryWeight, product of:
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.046906993 = queryNorm
0.18620178 = fieldWeight in 1167, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3706124 = idf(docFreq=4130, maxDocs=44218)
0.0390625 = fieldNorm(doc=1167)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Source
- Information processing and management. 23(1987), S.539-553
