Search (90 results, page 1 of 5)

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Date

25.11.2005 18:37:22

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Abstract

Library of Congress Subject Headings (LCSH), a system originally designed as a tool for subject access to the Library's own collection in the late nineteenth century, has become, in the course of the last century, the main subject retrieval tool in library catalogs throughout the United States and in many other countries. It is one of the largest non-specialized controlled vocabularies in the world. As LCSH enters a new century, it faces an information environment that has undergone vast changes from what had prevailed when LCSH began, or, indeed, from its state in the early days of the online age. In order to continue its mission and to be useful in spheres outside library catalogs as well, LCSH must adapt to the multifarious environment. One possible approach is to adopt a series of scalable and flexible syntax and application rules to meet the needs of different user communities

Date

27. 5.2001 16:22:21

Source

The LCSH century: one hundred years with the Library of Congress Subject Headings system. Ed.: A.T.Stone

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Abstract

A study group representing four European national libraries (the Swiss National Library, Die Deutsche Bibliothek, the Bibliothèque nationale de France and The British Library) recently conducted a study on the possibility of establishing multilingual thesaural links between the headings in the LCSH authority file and the authority files of the German indexing system SWD/RSWK and the French indexing system RAMEAU. The study demonstrated a high level of correspondence in main headings, but also revealed a number of issues requiring further investigation. The study group's findings led to recommendations on the scope for the development of a prototype system for linking the three Subject Heading Languages (SHLs) in the databases of the four institutions

Date

27. 5.2001 16:22:10

Source

The LCSH century: one hundred years with the Library of Congress Subject Headings system. Ed.: A.T.Stone

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Abstract

Form subdivisions have always been an important part of the Library of Congress Subject Headings. However, when the MARC format was developed, no separate subfield code to identify form subdivisions was defined. Form and topical subdivisions were both included within a general subdivision category. In 1995, the USMARC Advisory Group approved a proposal defining subfield v for form subdivisions, and in 1999 the Library of Congress (LC) began identifying form subdivisions with the new code. However, there are millions of older bibliographic records lacking the explicit form subdivision coding. Identifying form subdivisions retrospectively is not a simple task. An algorithmic method was developed to identify form subdivisions coded as general subdivisions. The algorithm was used to identify 2,563 unique form subdivisions or combinations of form subdivisions in OCLC's WorldCat. The algorithm proved to be highly accurate with an error rate estimated to be less than 0.1%. The observed usage of the form subdivisions was highly skewed with the 100 most used form subdivisions or combinations of subdivisions accounting for 90% of the assignments.

Date

10. 9.2000 17:38:22

Source

Library resources and technical services. 45(2001) no.4, S.187-197

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Abstract

Library of Congress Subject Headings (LSCH), which celebrated its 100th birthday in 1998, is the largest cataloging and indexing language in the world for the indication of the topics and formats of books and similar publications. It consists of a controlled list of main headings, many with subdivisions, with a rich system of cross references. It is supported by the U.S. government, and undergoes systematic revision. In recent decades its managers have begun to confront challenges such as biased terminology, complicated syntax (how terms are put together to form headings), and effective displays in electronic media. Many suggestions have been made for its improvement, including moving to a fully faceted system.

Date

27. 8.2011 14:22:13

Source

Encyclopedia of library and information sciences. 3rd ed. Ed.: M.J. Bates

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Abstract

Although the rules for descriptive cataloging have been recodified twice in the past twenty years, there never has been any kind of comprehensive theoretical code for subject headings, despite some suggestions for a code over the years. This essay explains the need for a code, provides historical background, and presents some broad proposals as to the philosophy, structure, and form of the code and what the code should cover. Included is the relation between the proposed code and the Library of Congress' 1984 Subject Cataloging Manual.

Date

7. 1.2007 13:22:01

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Date

10. 9.2000 17:38:22

Source

Library resources and technical services. 53(2009) no.1, S.25-40

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Abstract

The Nuovo soggettario, the official Italian subject indexing system edited by the National Central Library of Florence, is made up of interactive components, the core of which is a general thesaurus and some rules of a conventional syntax for subject string construction. The Nuovo soggettario Thesaurus is in compliance with ISO 25964: 2011-2013, IFLA LRM, and FAIR principle (findability, accessibility, interoperability, and reusability). Its open data are available in the Zthes, MARC21, and in SKOS formats and allow for interoperability with l library, archive, and museum databases. The Thesaurus's macrostructure is organized into four fundamental macro-categories, thirteen categories, and facets. The facets allow for the orderly development of hierarchies, thereby limiting polyhierarchies and promoting the grouping of homogenous concepts. This paper addresses the main features and peculiarities which have characterized the consistent development of this categorical structure and its effects on the syntactic sphere in a predominantly pre-coordinated usage context.

Date

26.11.2023 18:59:22

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Editor

Library of Congress / Cataloging Distribution Service

Imprint

Washington : Library of Congress

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Abstract

A thourough understanding of current subject cataloging practice, especially Library of Congress practice, will assist librarians in making the best use of new and emerging technology to ease the task of constructing subject headings. To gain insight into the most current subject cataloging practices at the Library of Congress, a random sample of one thousand bibliographic records with one or more 6XX fields and Library of Congress card numbers assigned from 1988 to the present was drawn from the BOOKSM database. Library of Congress catalogers rely heavily on the system of free-floating subdivisions in the process of constructing subject headings. Attempts to improve the subject cataloging process must take into account this fundamental characteristic of the Library of Congress subject headings system

Source

Library resources and technical services. 37(1993) no.1, S.47-58

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Editor

Library of Congress / Cataloging Distribution Service

Imprint

Washington : Library of Congress

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Abstract

This book provides the necessary skills for a cataloger in a library or other information agency, whether a professional or paraprofessional level. It is also suitable for university students studying librarianship and those independently learning subject cataloging. Reviews the various parts of the LCSH cataloging system and contains use practice exercises and tests. A glossary, bibliography and index complete this fourth study guide in the library basics series

LCSH

Subject headings, Library of Congress

Series

Library basics series; 4

Subject

Subject headings, Library of Congress

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Imprint

Halifax, N.S. : Dalhousie University, School of Library and Information Studies

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Imprint

Wollongong : Univ. of Wollongong Library

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Footnote

Rez. in: Library review. 42(1993) no.5, S.65 (D. Anderson)

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Source

Library journal. 113(1988) Sept.15, S.55-58

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Abstract

Discusses subject headings, in particular. Library of Congress Subject Headings as a standard for subject representation of documents in library catalogues. Addresses: the characteristics of LCSH, its use in subject cataloguing and retrieval and its place in online catalogues. Considers the future of LCSH

Imprint

London : Library Association

Source

Standards for the international exchange of bibliographic information: papers presented at a course held at the School of Library, Archive and Information Studies, University College, London, 3-18 August 1990. Ed.: I.C. McIlwaine

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Editor

Library of Congress / Cataloging Policy and Support Office, Library Services

Imprint

Washington, DC : Library of Congress

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Abstract

The nature of a library's collections determines what kind of subject access to provide to those collections. The collections of the Cleveland Public Library serve both the recreational and research needs of a large urban population. The Cleveland Public Library uses Library of Congress Subject Headings to describe its collections. A study of subject searches entered by library patrons over the course of one week reveals several patterns among the types of subject headings used most frequently, reflecting the characteristics of the population served. Other topics discussed include subject access to fiction, juvenileliterature, and specialized collections

Source

The LCSH century: one hundred years with the Library of Congress Subject Headings system. Ed.: A.T.Stone

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Abstract

The only comprehensive treatise an the Library of Congress Subject Headings system, now fully updated to address LCSH in the electronic environment.