Search (28 results, page 1 of 2)

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Footnote

Vortrag Bibliothekartag Augsburg 1990

Source

Bibliothek: Forschung und Praxis. 14(1990), S.316-318

Year

1990

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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

Year

2010

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Source

Biblos. 39(1990), S.259-273

Year

1990

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Source

Journal of the American Society for information Science. 41(1990) no.8, S.547-559

Year

1990

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Source

Bibliothek. Forschung und Praxis. 14(1990), S.193-225

Year

1990

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Year

1990

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Footnote

Rez. in: Journal of academic librarianship (1990) S.44 (R.J. Dorn); Bibliothek; Forschung u. Praxis 14(1990) S.90-91 (W. Umstätter)

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Year

1990

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Year

1990

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Source

Bibliotheken in Europa. 80. deutscher Bibliothekartag in Saarbrücken, 1990

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Footnote

Ph.D. thesis. - DAI 50-07(1990) S.1838A

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Source

Journal of the American Society for Information Science and Technology. 61(2010) no.4, S.677-687

Year

2010

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Classification

Z699.35.S92A46 1990

LCC

Z699.35.S92A46 1990

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Source

Technical services management: 1965-1990. A quarter of a century of change and a look into the future. Festschrift for Kathryn Luther Henderson. Ed.: L.C. Smith et al

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Abstract

In online retrieval search results do not always match the intent in spite of using correct keywords (descriptors). One of the causes of this problem is found in the hierarchical structures of the thesaurus, which often contains relations between broader and narrower concepts, the opposite of which is not necessarily true. Some examples are described from 2 thesauri, MeSH and JICST. In these cases searchers need to make an effort to increase precision

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Abstract

The IFLA Section on Classification and Indexing's Working Group on Principles Underlying Subject Headings Languages has identified a set of eleven principles for subject heading languages and excerpted the texts that match each principle from the instructions for each of eleven national subject indexing systems, including excerpts from the LC's Subject Cataloging Manual: Subject Headings. This study compares the IFLA principles with other texts that express the principles underlying LCSH, especially Library of Congress Subject Headings: Principles of Structure and Policies for Application, prepared by Lois Mai Chan for the Library of Congress in 1990, Chan's later book on LCSH, and earlier documents by Haykin and Cutter. The principles are further elaborated for clarity and discussed

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Classification

Z699.B55 1990

LCC

Z699.B55 1990

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Source

Searcher. 3(1995) no.8, S.18-22

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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

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Date

22. 4.1997 20:43:23