-
Broughton, V.: Structural, linguistic and mathematical elements in indexing languages and search engines : implications for the use of index languages in electronic and non-LIS environments (2000)
0.02
0.017439222 = product of:
0.034878444 = sum of:
0.034878444 = product of:
0.06975689 = sum of:
0.06975689 = weight(_text_:theory in 96) [ClassicSimilarity], result of:
0.06975689 = score(doc=96,freq=4.0), product of:
0.21471956 = queryWeight, product of:
4.1583924 = idf(docFreq=1878, maxDocs=44218)
0.05163523 = queryNorm
0.3248744 = fieldWeight in 96, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.1583924 = idf(docFreq=1878, maxDocs=44218)
0.0390625 = fieldNorm(doc=96)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- The paper looks at ways in which traditional classification and indexing tools have dealt with the relationships between constituent terms; variations in these are examined and compared with the methods used in machine searching, particularly of the Internet and World Wide Web. Apparent correspondences with features of index languages are identified, and further methods of applying classification and indexing theory to machine retrieval are proposed. There are various ways in which indexing and retrieval systems, both conventional and electronic, deal with the problem of searching for documents on a subject basis, and various approaches to the analysis and processing of a query. There appear to be three basic models; the taxonomic or structural system, in which the user is offered a map of the `universe of knowledge'; the language based system, which offers a vocabulary of the subject and a grammar for dealing with compound statements; and the mathematical model using the language of symbolic logic or the algebra of set theory
-
Drabenstott, K.M.; Vizine-Goetz, D.: Using subject headings for online retrieval : theory, practice and potential (1994)
0.01
0.014797671 = product of:
0.029595342 = sum of:
0.029595342 = product of:
0.059190683 = sum of:
0.059190683 = weight(_text_:theory in 386) [ClassicSimilarity], result of:
0.059190683 = score(doc=386,freq=2.0), product of:
0.21471956 = queryWeight, product of:
4.1583924 = idf(docFreq=1878, maxDocs=44218)
0.05163523 = queryNorm
0.27566507 = fieldWeight in 386, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.1583924 = idf(docFreq=1878, maxDocs=44218)
0.046875 = fieldNorm(doc=386)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Lambert, N.: Of thesauri and computers : reflections on the need for thesauri (1995)
0.01
0.013991722 = product of:
0.027983444 = sum of:
0.027983444 = product of:
0.055966888 = sum of:
0.055966888 = weight(_text_:22 in 3734) [ClassicSimilarity], result of:
0.055966888 = score(doc=3734,freq=2.0), product of:
0.18081778 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05163523 = queryNorm
0.30952093 = fieldWeight in 3734, 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=3734)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Searcher. 3(1995) no.8, S.18-22
-
Blair, D.C.: Language and representation in information retrieval (1991)
0.01
0.013951378 = product of:
0.027902756 = sum of:
0.027902756 = product of:
0.05580551 = sum of:
0.05580551 = weight(_text_:theory in 1545) [ClassicSimilarity], result of:
0.05580551 = score(doc=1545,freq=4.0), product of:
0.21471956 = queryWeight, product of:
4.1583924 = idf(docFreq=1878, maxDocs=44218)
0.05163523 = queryNorm
0.25989953 = fieldWeight in 1545, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.1583924 = idf(docFreq=1878, maxDocs=44218)
0.03125 = fieldNorm(doc=1545)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- Information or Document Retrieval is the subject of this book. It is not an introductory book, although it is self-contained in the sense that it is not necessary to have a background in the theory or practice of Information Retrieval in order to understand its arguments. The book presents, as clearly as possible, one particular perspective on Information Retrieval, and attempts to say that certain aspects of the theory or practice of the management of documents are more important than others. The majority of Information Retrieval research has been aimed at the more experimentally tractable small-scale systems, and although much of that work has added greatly to our understanding of Information Retrieval it is becoming increasingly apparent that retrieval systems with large data bases of documents are a fundamentally different genre of systems than small-scale systems. If this is so, which is the thesis of this book, then we must now study large information retrieval systems with the same rigor and intensity that we once studied small-scale systems. Hegel observed that the quantitative growth of any system caused qualitative changes to take place in its structure and processes.
-
Stone, A.T.: Up-ending Cutter's pyramid : the case for making subject references to broader terms (1996)
0.01
0.012242757 = product of:
0.024485514 = sum of:
0.024485514 = product of:
0.048971027 = sum of:
0.048971027 = weight(_text_:22 in 7238) [ClassicSimilarity], result of:
0.048971027 = score(doc=7238,freq=2.0), product of:
0.18081778 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05163523 = queryNorm
0.2708308 = fieldWeight in 7238, 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=7238)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 4.1997 20:43:23
-
Chan, L.M.; Hodges, T.: Entering the millennium : a new century for LCSH (2000)
0.01
0.010493792 = product of:
0.020987583 = sum of:
0.020987583 = product of:
0.041975167 = sum of:
0.041975167 = weight(_text_:22 in 5920) [ClassicSimilarity], result of:
0.041975167 = score(doc=5920,freq=2.0), product of:
0.18081778 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05163523 = queryNorm
0.23214069 = fieldWeight in 5920, 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=5920)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 27. 5.2001 16:22:21
-
Frommeyer, J.: Chronological terms and period subdivisions in LCSH, RAMEAU, and RSWK : development of an integrative model for time retrieval across various online catalogs (2004)
0.01
0.010493792 = product of:
0.020987583 = sum of:
0.020987583 = product of:
0.041975167 = sum of:
0.041975167 = weight(_text_:22 in 131) [ClassicSimilarity], result of:
0.041975167 = score(doc=131,freq=2.0), product of:
0.18081778 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05163523 = queryNorm
0.23214069 = fieldWeight in 131, 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=131)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 10. 9.2000 17:38:22
-
Leissing, U.; Rädler, K.; Hauer, M.: Query-Expansion durch Fachthesauri : Erfahrungsbericht zu dandelon.com, Vorarlberger Parlamentsinformationssystem und vorarlberg.at (2010)
0.01
0.010493792 = product of:
0.020987583 = sum of:
0.020987583 = product of:
0.041975167 = sum of:
0.041975167 = weight(_text_:22 in 3728) [ClassicSimilarity], result of:
0.041975167 = score(doc=3728,freq=2.0), product of:
0.18081778 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05163523 = queryNorm
0.23214069 = fieldWeight in 3728, 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=3728)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Wissensspeicher in digitalen Räumen: Nachhaltigkeit - Verfügbarkeit - semantische Interoperabilität. Proceedings der 11. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation, Konstanz, 20. bis 22. Februar 2008. Hrsg.: J. Sieglerschmidt u. H.P.Ohly
-
Anderson, J.D.; Pérez-Carballo, J.: Library of Congress Subject Headings (LCSH) (2009)
0.01
0.010493792 = product of:
0.020987583 = sum of:
0.020987583 = product of:
0.041975167 = sum of:
0.041975167 = weight(_text_:22 in 3837) [ClassicSimilarity], result of:
0.041975167 = score(doc=3837,freq=2.0), product of:
0.18081778 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05163523 = queryNorm
0.23214069 = fieldWeight in 3837, 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=3837)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 27. 8.2011 14:22:13
-
¬The LCSH century : One hundred years with the Library of Congress Subject Headings system (2000)
0.01
0.009865114 = product of:
0.019730229 = sum of:
0.019730229 = product of:
0.039460458 = sum of:
0.039460458 = weight(_text_:theory in 1224) [ClassicSimilarity], result of:
0.039460458 = score(doc=1224,freq=2.0), product of:
0.21471956 = queryWeight, product of:
4.1583924 = idf(docFreq=1878, maxDocs=44218)
0.05163523 = queryNorm
0.18377672 = fieldWeight in 1224, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.1583924 = idf(docFreq=1878, maxDocs=44218)
0.03125 = fieldNorm(doc=1224)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Content
- Enthält die Beiträge: BACKGROUND: Alva T STONE: The LCSH Century: A Brief History of the Library of Congress Subject Headings, and Introduction to the Centennial Essays - THEORY AND PRINCIPLES: Elaine SVENONIUS: LCSH: Semantics, Syntax and Specificity; Heidi Lee HOERMAN u. Kevin A. FURNISS: Turning Practice into Principles: A Comparison of the IFLA: Principles Underlying Subject Heading Languages (SHLs) and the Principles Underlying the Library of Congress Subject Headings System; Hope A. OLSON: Difference, Culture and Change:The Untapped Potential of LCSH - ONLINE ENVIRONMENT: Pauline Atherton COCHRANE: Improving LCSH for Use in Online Catalogs Revisited-What Progress Has Been Made? What Issues Still Remain?; Gregory WOOL: Filing and Precoordination: How Subject Headings Are Displayed in Online Catalogs and Why It Matters; Stephen HEARN: Machine-Assisted Validation of LC Subject Headings: Implications for Authority File Structure - SPECIFIC PERSPECTIVES: Thomas MANN: Teaching Library of Congress Subject Headings; Louisa J. KREIDER: LCSH Works! Subject Searching Effectiveness at the Cleveland Public Library and the Growth of Library of Congress Subject Headings Through Cooperation; Harriette HEMMASI u J. Bradford YOUNG: LCSH for Music: Historical and Empirical Perspectives; Joseph MILLER u. Patricia KUHR: LCSH and Periodical Indexing: Adoption vs. Adaptation; David P MILLER: Out from Under: Form/Genre Access in LCSH - WORLD VIEW: Magda HEINER-FREILING: Survey on Subject Heading Languages Used in National Libraries and Bibliographies; Andrew MacEWAN: Crossing Language Barriers in Europe: Linking LCSH to Other Subject Heading Languages; Alvaro QUIJANO-SOLIS u.a.: Automated Authority Files of Spanish-Language Subject Headings - FUTURE PROSPECTS: Lois Mai CHAN u. Theodora HODGES: Entering the Millennium: a new century for LCSH
-
¬The LCSH century : One hundred years with the Library of Congress Subject Headings system (2000)
0.01
0.009865114 = product of:
0.019730229 = sum of:
0.019730229 = product of:
0.039460458 = sum of:
0.039460458 = weight(_text_:theory in 5366) [ClassicSimilarity], result of:
0.039460458 = score(doc=5366,freq=2.0), product of:
0.21471956 = queryWeight, product of:
4.1583924 = idf(docFreq=1878, maxDocs=44218)
0.05163523 = queryNorm
0.18377672 = fieldWeight in 5366, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.1583924 = idf(docFreq=1878, maxDocs=44218)
0.03125 = fieldNorm(doc=5366)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Content
- Enthält die Beiträge: BACKGROUND: Alva T STONE: The LCSH Century: A Brief History of the Library of Congress Subject Headings, and Introduction to the Centennial Essays - THEORY AND PRINCIPLES: Elaine SVENONIUS: LCSH: Semantics, Syntax and Specificity; Heidi Lee HOERMAN u. Kevin A. FURNISS: Turning Practice into Principles: A Comparison of the IFLA: Principles Underlying Subject Heading Languages (SHLs) and the Principles Underlying the Library of Congress Subject Headings System; Hope A. OLSON: Difference, Culture and Change:The Untapped Potential of LCSH - ONLINE ENVIRONMENT: Pauline Atherton COCHRANE: Improving LCSH for Use in Online Catalogs Revisited-What Progress Has Been Made? What Issues Still Remain?; Gregory WOOL: Filing and Precoordination: How Subject Headings Are Displayed in Online Catalogs and Why It Matters; Stephen HEARN: Machine-Assisted Validation of LC Subject Headings: Implications for Authority File Structure - SPECIFIC PERSPECTIVES: Thomas MANN: Teaching Library of Congress Subject Headings; Louisa J. KREIDER: LCSH Works! Subject Searching Effectiveness at the Cleveland Public Library and the Growth of Library of Congress Subject Headings Through Cooperation; Harriette HEMMASI u J. Bradford YOUNG: LCSH for Music: Historical and Empirical Perspectives; Joseph MILLER u. Patricia KUHR: LCSH and Periodical Indexing: Adoption vs. Adaptation; David P MILLER: Out from Under: Form/Genre Access in LCSH - WORLD VIEW: Magda HEINER-FREILING: Survey on Subject Heading Languages Used in National Libraries and Bibliographies; Andrew MacEWAN: Crossing Language Barriers in Europe: Linking LCSH to Other Subject Heading Languages; Alvaro QUIJANO-SOLIS u.a.: Automated Authority Files of Spanish-Language Subject Headings - FUTURE PROSPECTS: Lois Mai CHAN u. Theodora HODGES: Entering the Millennium: a new century for LCSH
-
Milstead, J.L.: Thesauri in a full-text world (1998)
0.01
0.008744827 = product of:
0.017489653 = sum of:
0.017489653 = product of:
0.034979306 = sum of:
0.034979306 = weight(_text_:22 in 2337) [ClassicSimilarity], result of:
0.034979306 = score(doc=2337,freq=2.0), product of:
0.18081778 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05163523 = queryNorm
0.19345059 = fieldWeight in 2337, 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=2337)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 9.1997 19:16:05
-
Wiesenmüller, H.: Verbale Erschließung in Katalogen und Discovery-Systemen : Überlegungen zur Qualität (2021)
0.01
0.008744827 = product of:
0.017489653 = sum of:
0.017489653 = product of:
0.034979306 = sum of:
0.034979306 = weight(_text_:22 in 374) [ClassicSimilarity], result of:
0.034979306 = score(doc=374,freq=2.0), product of:
0.18081778 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05163523 = queryNorm
0.19345059 = fieldWeight in 374, 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=374)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 24. 9.2021 12:22:02
-
Geißelmann, F. (Hrsg.): Sacherschließung in Online-Katalogen (1994)
0.01
0.008656937 = product of:
0.017313873 = sum of:
0.017313873 = product of:
0.034627747 = sum of:
0.034627747 = weight(_text_:22 in 4360) [ClassicSimilarity], result of:
0.034627747 = score(doc=4360,freq=4.0), product of:
0.18081778 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05163523 = queryNorm
0.19150631 = fieldWeight in 4360, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.02734375 = fieldNorm(doc=4360)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 15. 7.2018 16:22:16
- Footnote
- Rez. in: Mitteilungen VÖB 48(1995) H.1, S.66-68 (K. Niedermair) - Vgl. auch Lepsky, K. in: Bibliotheksdienst 29(1995) H.3, S.500-519; Bibliothek: Forschung u. Praxis 19(1995) H.2, S.251-254 (G. Hartwieg; auch in: LDV-Forum Bd. 12, Nr. 2, Jg. 1995, S.22-29 [unter: http://www.jlcl.org/1995_Heft2/Rezensionen_19-27.pdf]) .
-
Nuovo soggettario : guida al sistema italiano di indicizzazione per soggetto, prototipo del thesaurus (2007)
0.00
0.004932557 = product of:
0.009865114 = sum of:
0.009865114 = product of:
0.019730229 = sum of:
0.019730229 = weight(_text_:theory in 664) [ClassicSimilarity], result of:
0.019730229 = score(doc=664,freq=2.0), product of:
0.21471956 = queryWeight, product of:
4.1583924 = idf(docFreq=1878, maxDocs=44218)
0.05163523 = queryNorm
0.09188836 = fieldWeight in 664, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.1583924 = idf(docFreq=1878, maxDocs=44218)
0.015625 = fieldNorm(doc=664)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Footnote
- Rez. in: Knowledge organization 34(2007) no.1, S.58-60 (P. Buizza): "This Nuovo soggettario is the first sign of subject indexing renewal in Italy. Italian subject indexing has been based until now on Soggettario per i cataloghi delle biblioteche italiane (Firenze, 1956), a list of preferred terms and see references, with suitable hierarchical subdivisions and cross references, derived from the subject catalogue of the National Library in Florence (BNCF). New headings later used in Bibliografia nazionale italiana (BNI) were added without references, nor indeed with any real maintenance. Systematic instructions on how to combine the terms are lacking: the indexer using this instrument is obliged to infer the order of terms absent from the lists by consulting analogous entries. Italian libraries are suffering from the limits of this subject catalogue: vocabulary is inadequate, obsolete and inconsistent, the syndetic structure incomplete and inaccurate, and the syntax ill-defined, poorly explained and unable to reflect complex subjects. In the nineties, the Subject Indexing Research Group (Gruppo di ricerca sull'indicizzazione per soggetto, GRIS) of the AIB (Italian Library Association) developed the indexing theory and some principles of PRECIS and drew up guidelines based on consistent principles for vocabulary, semantic relationships and subject string construction, the latter according to role syntax (Guida 1997). In overhauling the Soggettario, the National Library in Florence aimed at a comprehensive indexing system. (A report on the method and evolution of the work has been published in Knowledge Organization (Lucarelli 2005), while the feasibility study is available in Italian (Per un nuovo Soggettario 2002). Any usable terms from the old Soggettario will be transferred to the new system, while taking into consideration international norms and interlinguistic compatibility, as well as applications outside the immediate library context. The terms will be accessible via a suitable OPAC operating on the most advanced software.
