-
Yu, C.T.; Salton, G.: Effective information retrieval using term accuracy (1971)
0.39
0.38776773 = product of:
0.5170236 = sum of:
0.02946245 = weight(_text_:for in 5485) [ClassicSimilarity], result of:
0.02946245 = score(doc=5485,freq=2.0), product of:
0.08876751 = queryWeight, product of:
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.047278564 = queryNorm
0.33190575 = fieldWeight in 5485, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.125 = fieldNorm(doc=5485)
0.25572333 = weight(_text_:computing in 5485) [ClassicSimilarity], result of:
0.25572333 = score(doc=5485,freq=2.0), product of:
0.26151994 = queryWeight, product of:
5.5314693 = idf(docFreq=475, maxDocs=44218)
0.047278564 = queryNorm
0.9778349 = fieldWeight in 5485, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.5314693 = idf(docFreq=475, maxDocs=44218)
0.125 = fieldNorm(doc=5485)
0.23183785 = product of:
0.4636757 = sum of:
0.4636757 = weight(_text_:machinery in 5485) [ClassicSimilarity], result of:
0.4636757 = score(doc=5485,freq=2.0), product of:
0.35214928 = queryWeight, product of:
7.448392 = idf(docFreq=69, maxDocs=44218)
0.047278564 = queryNorm
1.3167021 = fieldWeight in 5485, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
7.448392 = idf(docFreq=69, maxDocs=44218)
0.125 = fieldNorm(doc=5485)
0.5 = coord(1/2)
0.75 = coord(3/4)
- Source
- Communications of the Association for Computing Machinery. 20(1971), S.135-142
-
Yu, C.T.; Salton, G.: Precision weighting : an effective automatic indexing method (1976)
0.39
0.38776773 = product of:
0.5170236 = sum of:
0.02946245 = weight(_text_:for in 5490) [ClassicSimilarity], result of:
0.02946245 = score(doc=5490,freq=2.0), product of:
0.08876751 = queryWeight, product of:
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.047278564 = queryNorm
0.33190575 = fieldWeight in 5490, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.125 = fieldNorm(doc=5490)
0.25572333 = weight(_text_:computing in 5490) [ClassicSimilarity], result of:
0.25572333 = score(doc=5490,freq=2.0), product of:
0.26151994 = queryWeight, product of:
5.5314693 = idf(docFreq=475, maxDocs=44218)
0.047278564 = queryNorm
0.9778349 = fieldWeight in 5490, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.5314693 = idf(docFreq=475, maxDocs=44218)
0.125 = fieldNorm(doc=5490)
0.23183785 = product of:
0.4636757 = sum of:
0.4636757 = weight(_text_:machinery in 5490) [ClassicSimilarity], result of:
0.4636757 = score(doc=5490,freq=2.0), product of:
0.35214928 = queryWeight, product of:
7.448392 = idf(docFreq=69, maxDocs=44218)
0.047278564 = queryNorm
1.3167021 = fieldWeight in 5490, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
7.448392 = idf(docFreq=69, maxDocs=44218)
0.125 = fieldNorm(doc=5490)
0.5 = coord(1/2)
0.75 = coord(3/4)
- Source
- Journal of the Association for Computing Machinery. 23(1976), S.76-88
-
Yu, C.T.; Salton, G.; Siu, M.K.: Effective automatic indexing using term addition and deletion (1978)
0.34
0.33929676 = product of:
0.45239568 = sum of:
0.025779642 = weight(_text_:for in 2859) [ClassicSimilarity], result of:
0.025779642 = score(doc=2859,freq=2.0), product of:
0.08876751 = queryWeight, product of:
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.047278564 = queryNorm
0.29041752 = fieldWeight in 2859, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.109375 = fieldNorm(doc=2859)
0.22375791 = weight(_text_:computing in 2859) [ClassicSimilarity], result of:
0.22375791 = score(doc=2859,freq=2.0), product of:
0.26151994 = queryWeight, product of:
5.5314693 = idf(docFreq=475, maxDocs=44218)
0.047278564 = queryNorm
0.85560554 = fieldWeight in 2859, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.5314693 = idf(docFreq=475, maxDocs=44218)
0.109375 = fieldNorm(doc=2859)
0.20285812 = product of:
0.40571624 = sum of:
0.40571624 = weight(_text_:machinery in 2859) [ClassicSimilarity], result of:
0.40571624 = score(doc=2859,freq=2.0), product of:
0.35214928 = queryWeight, product of:
7.448392 = idf(docFreq=69, maxDocs=44218)
0.047278564 = queryNorm
1.1521144 = fieldWeight in 2859, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
7.448392 = idf(docFreq=69, maxDocs=44218)
0.109375 = fieldNorm(doc=2859)
0.5 = coord(1/2)
0.75 = coord(3/4)
- Source
- Journal of the Association for Computing Machinery. 25(1978), S.210-225
-
Barton, I.J.; Creasey, S.E.; Lynch, M.F.; Snell, M.J.: ¬An information-theoretic approach to text-searching in direct access systems (1974)
0.34
0.33929676 = product of:
0.45239568 = sum of:
0.025779642 = weight(_text_:for in 5455) [ClassicSimilarity], result of:
0.025779642 = score(doc=5455,freq=2.0), product of:
0.08876751 = queryWeight, product of:
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.047278564 = queryNorm
0.29041752 = fieldWeight in 5455, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.109375 = fieldNorm(doc=5455)
0.22375791 = weight(_text_:computing in 5455) [ClassicSimilarity], result of:
0.22375791 = score(doc=5455,freq=2.0), product of:
0.26151994 = queryWeight, product of:
5.5314693 = idf(docFreq=475, maxDocs=44218)
0.047278564 = queryNorm
0.85560554 = fieldWeight in 5455, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.5314693 = idf(docFreq=475, maxDocs=44218)
0.109375 = fieldNorm(doc=5455)
0.20285812 = product of:
0.40571624 = sum of:
0.40571624 = weight(_text_:machinery in 5455) [ClassicSimilarity], result of:
0.40571624 = score(doc=5455,freq=2.0), product of:
0.35214928 = queryWeight, product of:
7.448392 = idf(docFreq=69, maxDocs=44218)
0.047278564 = queryNorm
1.1521144 = fieldWeight in 5455, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
7.448392 = idf(docFreq=69, maxDocs=44218)
0.109375 = fieldNorm(doc=5455)
0.5 = coord(1/2)
0.75 = coord(3/4)
- Source
- Communications of the Association for Computing Machinery. 17(1974), S.345-350
-
Aho, A.; Corasick, M.: Efficient string matching : an aid to bibliographic search (1975)
0.34
0.33929676 = product of:
0.45239568 = sum of:
0.025779642 = weight(_text_:for in 3506) [ClassicSimilarity], result of:
0.025779642 = score(doc=3506,freq=2.0), product of:
0.08876751 = queryWeight, product of:
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.047278564 = queryNorm
0.29041752 = fieldWeight in 3506, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.109375 = fieldNorm(doc=3506)
0.22375791 = weight(_text_:computing in 3506) [ClassicSimilarity], result of:
0.22375791 = score(doc=3506,freq=2.0), product of:
0.26151994 = queryWeight, product of:
5.5314693 = idf(docFreq=475, maxDocs=44218)
0.047278564 = queryNorm
0.85560554 = fieldWeight in 3506, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.5314693 = idf(docFreq=475, maxDocs=44218)
0.109375 = fieldNorm(doc=3506)
0.20285812 = product of:
0.40571624 = sum of:
0.40571624 = weight(_text_:machinery in 3506) [ClassicSimilarity], result of:
0.40571624 = score(doc=3506,freq=2.0), product of:
0.35214928 = queryWeight, product of:
7.448392 = idf(docFreq=69, maxDocs=44218)
0.047278564 = queryNorm
1.1521144 = fieldWeight in 3506, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
7.448392 = idf(docFreq=69, maxDocs=44218)
0.109375 = fieldNorm(doc=3506)
0.5 = coord(1/2)
0.75 = coord(3/4)
- Source
- Communications of the Association for Computing Machinery. 18(1975), S.333-340
-
Boyer, R.; Moore, S.: ¬A fast string searching algorithm (1977)
0.34
0.33929676 = product of:
0.45239568 = sum of:
0.025779642 = weight(_text_:for in 3507) [ClassicSimilarity], result of:
0.025779642 = score(doc=3507,freq=2.0), product of:
0.08876751 = queryWeight, product of:
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.047278564 = queryNorm
0.29041752 = fieldWeight in 3507, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.109375 = fieldNorm(doc=3507)
0.22375791 = weight(_text_:computing in 3507) [ClassicSimilarity], result of:
0.22375791 = score(doc=3507,freq=2.0), product of:
0.26151994 = queryWeight, product of:
5.5314693 = idf(docFreq=475, maxDocs=44218)
0.047278564 = queryNorm
0.85560554 = fieldWeight in 3507, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.5314693 = idf(docFreq=475, maxDocs=44218)
0.109375 = fieldNorm(doc=3507)
0.20285812 = product of:
0.40571624 = sum of:
0.40571624 = weight(_text_:machinery in 3507) [ClassicSimilarity], result of:
0.40571624 = score(doc=3507,freq=2.0), product of:
0.35214928 = queryWeight, product of:
7.448392 = idf(docFreq=69, maxDocs=44218)
0.047278564 = queryNorm
1.1521144 = fieldWeight in 3507, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
7.448392 = idf(docFreq=69, maxDocs=44218)
0.109375 = fieldNorm(doc=3507)
0.5 = coord(1/2)
0.75 = coord(3/4)
- Source
- Communications of the Association for Computing Machinery. 20(1977), S.762-772
-
Salton, G.; Wong, A.; Yang, C.S.: ¬A vector space model for automatic indexing (1975)
0.25
0.24807532 = product of:
0.3307671 = sum of:
0.026041372 = weight(_text_:for in 1934) [ClassicSimilarity], result of:
0.026041372 = score(doc=1934,freq=4.0), product of:
0.08876751 = queryWeight, product of:
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.047278564 = queryNorm
0.29336601 = fieldWeight in 1934, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.078125 = fieldNorm(doc=1934)
0.15982707 = weight(_text_:computing in 1934) [ClassicSimilarity], result of:
0.15982707 = score(doc=1934,freq=2.0), product of:
0.26151994 = queryWeight, product of:
5.5314693 = idf(docFreq=475, maxDocs=44218)
0.047278564 = queryNorm
0.6111468 = fieldWeight in 1934, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.5314693 = idf(docFreq=475, maxDocs=44218)
0.078125 = fieldNorm(doc=1934)
0.14489865 = product of:
0.2897973 = sum of:
0.2897973 = weight(_text_:machinery in 1934) [ClassicSimilarity], result of:
0.2897973 = score(doc=1934,freq=2.0), product of:
0.35214928 = queryWeight, product of:
7.448392 = idf(docFreq=69, maxDocs=44218)
0.047278564 = queryNorm
0.8229388 = fieldWeight in 1934, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
7.448392 = idf(docFreq=69, maxDocs=44218)
0.078125 = fieldNorm(doc=1934)
0.5 = coord(1/2)
0.75 = coord(3/4)
- Source
- Communications of the Association for Computing Machinery. 18(1975), S.613-620
-
Toward a theory of librarianship. Papers in honour of Jesse Hauk Shera (1973)
0.06
0.06238439 = product of:
0.12476878 = sum of:
0.012889821 = weight(_text_:for in 1446) [ClassicSimilarity], result of:
0.012889821 = score(doc=1446,freq=2.0), product of:
0.08876751 = queryWeight, product of:
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.047278564 = queryNorm
0.14520876 = fieldWeight in 1446, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.0546875 = fieldNorm(doc=1446)
0.111878954 = weight(_text_:computing in 1446) [ClassicSimilarity], result of:
0.111878954 = score(doc=1446,freq=2.0), product of:
0.26151994 = queryWeight, product of:
5.5314693 = idf(docFreq=475, maxDocs=44218)
0.047278564 = queryNorm
0.42780277 = fieldWeight in 1446, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.5314693 = idf(docFreq=475, maxDocs=44218)
0.0546875 = fieldNorm(doc=1446)
0.5 = coord(2/4)
- Content
- Enthält u.a. die Beiträge: VICKERY, B.C.: The nature of information science; FOSKETT, D.J.: The contribution of classification to a theory of librarianship; KOCHEN, M.: Referential consulting networks; GOFFMAN, W.: On information retrieval systems; BOOTH, A.D.: On a fallacy in the use of computing machines for automated dictionary retrieval; MORSE, P.M.: Browsing and search theory; FAIRTHORNE, R.A.: The symmetries of ignorance; RICHMOND, P.A.: A thesaurus within a thesaurus: a study in ambiguity; METCALFE, J.: When is a subject not a subject?; DUNKIN, P.S.: From pig to man; TAUBER, M.F. u. H. FEINBERG: Book catalogs; MENZEL, H.: Informal communication in science: its advantages and its formal analogues; KUNZE, H.: On the professional image and the education of the librarian
-
Henzler, R.G.: Analytical or algorithmic text processing in literature information systems (1979)
0.06
0.055939477 = product of:
0.22375791 = sum of:
0.22375791 = weight(_text_:computing in 2951) [ClassicSimilarity], result of:
0.22375791 = score(doc=2951,freq=2.0), product of:
0.26151994 = queryWeight, product of:
5.5314693 = idf(docFreq=475, maxDocs=44218)
0.047278564 = queryNorm
0.85560554 = fieldWeight in 2951, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.5314693 = idf(docFreq=475, maxDocs=44218)
0.109375 = fieldNorm(doc=2951)
0.25 = coord(1/4)
- Source
- Medical informatics Berlin 1979. Int. conf. on medical computing, Berlin, 17.-20.9.1979. Ed.: B. Barber et al
-
Artandi, S.: Document retrieval and the concept of sets (1971)
0.04
0.040353596 = product of:
0.08070719 = sum of:
0.02946245 = weight(_text_:for in 5458) [ClassicSimilarity], result of:
0.02946245 = score(doc=5458,freq=2.0), product of:
0.08876751 = queryWeight, product of:
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.047278564 = queryNorm
0.33190575 = fieldWeight in 5458, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.125 = fieldNorm(doc=5458)
0.051244743 = product of:
0.10248949 = sum of:
0.10248949 = weight(_text_:22 in 5458) [ClassicSimilarity], result of:
0.10248949 = score(doc=5458,freq=2.0), product of:
0.16556148 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.047278564 = queryNorm
0.61904186 = fieldWeight in 5458, 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=5458)
0.5 = coord(1/2)
0.5 = coord(2/4)
- Source
- Journal of the American Society for Information Science. 22(1971) no.4, S.289-290
-
Fachsystematik Bremen nebst Schlüssel 1970 ff. (1970 ff)
0.04
0.03929486 = product of:
0.07858972 = sum of:
0.06257574 = product of:
0.18772723 = sum of:
0.18772723 = weight(_text_:3a in 3577) [ClassicSimilarity], result of:
0.18772723 = score(doc=3577,freq=2.0), product of:
0.40082818 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.047278564 = queryNorm
0.46834838 = fieldWeight in 3577, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.0390625 = fieldNorm(doc=3577)
0.33333334 = coord(1/3)
0.016013984 = product of:
0.032027967 = sum of:
0.032027967 = weight(_text_:22 in 3577) [ClassicSimilarity], result of:
0.032027967 = score(doc=3577,freq=2.0), product of:
0.16556148 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.047278564 = queryNorm
0.19345059 = fieldWeight in 3577, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=3577)
0.5 = coord(1/2)
0.5 = coord(2/4)
- Content
- 1. Agrarwissenschaften 1981. - 3. Allgemeine Geographie 2.1972. - 3a. Allgemeine Naturwissenschaften 1.1973. - 4. Allgemeine Sprachwissenschaft, Allgemeine Literaturwissenschaft 2.1971. - 6. Allgemeines. 5.1983. - 7. Anglistik 3.1976. - 8. Astronomie, Geodäsie 4.1977. - 12. bio Biologie, bcp Biochemie-Biophysik, bot Botanik, zoo Zoologie 1981. - 13. Bremensien 3.1983. - 13a. Buch- und Bibliothekswesen 3.1975. - 14. Chemie 4.1977. - 14a. Elektrotechnik 1974. - 15 Ethnologie 2.1976. - 16,1. Geowissenschaften. Sachteil 3.1977. - 16,2. Geowissenschaften. Regionaler Teil 3.1977. - 17. Germanistik 6.1984. - 17a,1. Geschichte. Teilsystematik hil. - 17a,2. Geschichte. Teilsystematik his Neuere Geschichte. - 17a,3. Geschichte. Teilsystematik hit Neueste Geschichte. - 18. Humanbiologie 2.1983. - 19. Ingenieurwissenschaften 1974. - 20. siehe 14a. - 21. klassische Philologie 3.1977. - 22. Klinische Medizin 1975. - 23. Kunstgeschichte 2.1971. - 24. Kybernetik. 2.1975. - 25. Mathematik 3.1974. - 26. Medizin 1976. - 26a. Militärwissenschaft 1985. - 27. Musikwissenschaft 1978. - 27a. Noten 2.1974. - 28. Ozeanographie 3.1977. -29. Pädagogik 8.1985. - 30. Philosphie 3.1974. - 31. Physik 3.1974. - 33. Politik, Politische Wissenschaft, Sozialwissenschaft. Soziologie. Länderschlüssel. Register 1981. - 34. Psychologie 2.1972. - 35. Publizistik und Kommunikationswissenschaft 1985. - 36. Rechtswissenschaften 1986. - 37. Regionale Geograpgie 3.1975. - 37a. Religionswissenschaft 1970. - 38. Romanistik 3.1976. - 39. Skandinavistik 4.1985. - 40. Slavistik 1977. - 40a. Sonstige Sprachen und Literaturen 1973. - 43. Sport 4.1983. - 44. Theaterwissenschaft 1985. - 45. Theologie 2.1976. - 45a. Ur- und Frühgeschichte, Archäologie 1970. - 47. Volkskunde 1976. - 47a. Wirtschaftswissenschaften 1971 // Schlüssel: 1. Länderschlüssel 1971. - 2. Formenschlüssel (Kurzform) 1974. - 3. Personenschlüssel Literatur 5. Fassung 1968
-
Gratch, B.; Settel, B.; Atherton, P.: Characteristics of book indexes for subject retrieval in the humanities and social sciences (1978)
0.04
0.035309397 = product of:
0.07061879 = sum of:
0.025779642 = weight(_text_:for in 1061) [ClassicSimilarity], result of:
0.025779642 = score(doc=1061,freq=2.0), product of:
0.08876751 = queryWeight, product of:
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.047278564 = queryNorm
0.29041752 = fieldWeight in 1061, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.109375 = fieldNorm(doc=1061)
0.04483915 = product of:
0.0896783 = sum of:
0.0896783 = weight(_text_:22 in 1061) [ClassicSimilarity], result of:
0.0896783 = score(doc=1061,freq=2.0), product of:
0.16556148 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.047278564 = queryNorm
0.5416616 = fieldWeight in 1061, 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=1061)
0.5 = coord(1/2)
0.5 = coord(2/4)
- Source
- Indexer. 11(1978), S.14-22
-
Rijsbergen, C.J. van: ¬A test for the separation of relevant and non-relevant documents in experimental retrieval collections (1973)
0.03
0.025568802 = product of:
0.051137604 = sum of:
0.02551523 = weight(_text_:for in 5002) [ClassicSimilarity], result of:
0.02551523 = score(doc=5002,freq=6.0), product of:
0.08876751 = queryWeight, product of:
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.047278564 = queryNorm
0.28743884 = fieldWeight in 5002, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.0625 = fieldNorm(doc=5002)
0.025622372 = product of:
0.051244743 = sum of:
0.051244743 = weight(_text_:22 in 5002) [ClassicSimilarity], result of:
0.051244743 = score(doc=5002,freq=2.0), product of:
0.16556148 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.047278564 = queryNorm
0.30952093 = fieldWeight in 5002, 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=5002)
0.5 = coord(1/2)
0.5 = coord(2/4)
- Abstract
- Many retrievalexperiments are intended to discover ways of improving performance, taking the results obtained with some particular technique as a baseline. The fact that substantial alterations to a system often have little or no effect on particular collections is puzzling. This may be due to the initially poor seperation of relevant and non-relevant documents. The paper presents a procedure for characterizing this seperation for a collection, which can be used to show whether proposed modifications of the base system are likely to be useful.
- Date
- 19. 3.1996 11:22:12
-
Popper, K.R.: Three worlds : the Tanner lecture on human values. Deliverd at the University of Michigan, April 7, 1978 (1978)
0.03
0.025030298 = product of:
0.10012119 = sum of:
0.10012119 = product of:
0.30036357 = sum of:
0.30036357 = weight(_text_:3a in 230) [ClassicSimilarity], result of:
0.30036357 = score(doc=230,freq=2.0), product of:
0.40082818 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.047278564 = queryNorm
0.7493574 = fieldWeight in 230, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.0625 = fieldNorm(doc=230)
0.33333334 = coord(1/3)
0.25 = coord(1/4)
- Source
- https%3A%2F%2Ftannerlectures.utah.edu%2F_documents%2Fa-to-z%2Fp%2Fpopper80.pdf&usg=AOvVaw3f4QRTEH-OEBmoYr2J_c7H
-
Rodriguez, R.D.: Geographic names in subject cataloging (1978)
0.02
0.023227734 = product of:
0.04645547 = sum of:
0.020833097 = weight(_text_:for in 5555) [ClassicSimilarity], result of:
0.020833097 = score(doc=5555,freq=4.0), product of:
0.08876751 = queryWeight, product of:
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.047278564 = queryNorm
0.23469281 = fieldWeight in 5555, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.0625 = fieldNorm(doc=5555)
0.025622372 = product of:
0.051244743 = sum of:
0.051244743 = weight(_text_:22 in 5555) [ClassicSimilarity], result of:
0.051244743 = score(doc=5555,freq=2.0), product of:
0.16556148 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.047278564 = queryNorm
0.30952093 = fieldWeight in 5555, 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=5555)
0.5 = coord(1/2)
0.5 = coord(2/4)
- Abstract
- Bibliographical problems caused by geographic names in subject vataloging are examnied with a view toward determining procedures for establishing correct headings when changes of name occur and deciding upon the type of provisions to be made in subject catalog maintenance. Examples of typical changes of geographic names in Africa and suggested information cards for the subject catalog are provided
- Source
- Library resources and technical services. 22(1978), S.409-414
-
Eversberg, B.: ADV und Zetteldruck : ein Widerspruch? (1975)
0.02
0.020176798 = product of:
0.040353596 = sum of:
0.014731225 = weight(_text_:for in 4431) [ClassicSimilarity], result of:
0.014731225 = score(doc=4431,freq=2.0), product of:
0.08876751 = queryWeight, product of:
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.047278564 = queryNorm
0.16595288 = fieldWeight in 4431, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.0625 = fieldNorm(doc=4431)
0.025622372 = product of:
0.051244743 = sum of:
0.051244743 = weight(_text_:22 in 4431) [ClassicSimilarity], result of:
0.051244743 = score(doc=4431,freq=2.0), product of:
0.16556148 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.047278564 = queryNorm
0.30952093 = fieldWeight in 4431, 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=4431)
0.5 = coord(1/2)
0.5 = coord(2/4)
- Abstract
- A method is outlined which would permit a large number of libraries of all types to use centralised cataloguing facilities without the need for their own automatic data processing equipment and outlay. The method is seen as an alternative to the OCLC on-line data bank, and permits the ordering of printed catalogue cards by machine-readable but hand-prepared data cards, such as the loan cards which readers at the Münster library are at present required to complete. The proposed sequence of ordering is set out in 11 stages
- Source
- Zeitschrift für Bibliothekswesen und Bibliographie. 22(1975) H.5, S.387-390
-
Pacey, P.: Handling slides single-handed (1977)
0.02
0.020176798 = product of:
0.040353596 = sum of:
0.014731225 = weight(_text_:for in 329) [ClassicSimilarity], result of:
0.014731225 = score(doc=329,freq=2.0), product of:
0.08876751 = queryWeight, product of:
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.047278564 = queryNorm
0.16595288 = fieldWeight in 329, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.8775425 = idf(docFreq=18385, maxDocs=44218)
0.0625 = fieldNorm(doc=329)
0.025622372 = product of:
0.051244743 = sum of:
0.051244743 = weight(_text_:22 in 329) [ClassicSimilarity], result of:
0.051244743 = score(doc=329,freq=2.0), product of:
0.16556148 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.047278564 = queryNorm
0.30952093 = fieldWeight in 329, 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=329)
0.5 = coord(1/2)
0.5 = coord(2/4)
- Abstract
- In 1975 the Library at Preston Polytechnic undertook the task of reorganising and developing a collection of slides previously in the custody of the School of Art and Design. Circumstances dictated that the collection be organised for maximum use and minimal maintenance. The slides have been classified by 18th Dewey and housed in transparent sheets of pockets suspended in filing cabinets, enabling borrowers to browse and help themselves
- Source
- Art libraries journal. 2(1977) no.3, S.22-30
-
Fischer, W.L.: Toleranzräume (1970)
0.02
0.016013984 = product of:
0.064055935 = sum of:
0.064055935 = product of:
0.12811187 = sum of:
0.12811187 = weight(_text_:22 in 192) [ClassicSimilarity], result of:
0.12811187 = score(doc=192,freq=2.0), product of:
0.16556148 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.047278564 = queryNorm
0.77380234 = fieldWeight in 192, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.15625 = fieldNorm(doc=192)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Source
- Archimedes. 22(1970) H.4, S.101-107
-
Dahlberg, I.: Normung und Klassifikation (1978)
0.02
0.016013984 = product of:
0.064055935 = sum of:
0.064055935 = product of:
0.12811187 = sum of:
0.12811187 = weight(_text_:22 in 1612) [ClassicSimilarity], result of:
0.12811187 = score(doc=1612,freq=2.0), product of:
0.16556148 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.047278564 = queryNorm
0.77380234 = fieldWeight in 1612, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.15625 = fieldNorm(doc=1612)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Source
- DK-Mitteilungen. 22(1978) Nr.5/6, S.13-18
-
Dahlberg, I.: Kolloquium Einheitsklassifikation (1975)
0.02
0.016013984 = product of:
0.064055935 = sum of:
0.064055935 = product of:
0.12811187 = sum of:
0.12811187 = weight(_text_:22 in 1625) [ClassicSimilarity], result of:
0.12811187 = score(doc=1625,freq=2.0), product of:
0.16556148 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.047278564 = queryNorm
0.77380234 = fieldWeight in 1625, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.15625 = fieldNorm(doc=1625)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Source
- Nachrichten für Dokumentation. 26(1975), S.22-25