-
Hearn, S.: Comparing catalogs : currency and consistency of controlled headings (2009)
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- Abstract
- Evaluative and comparative studies of catalog data have tended to focus on methods that are labor intensive, demand expertise, and can examine only a limited number of records. This study explores an alternative approach to gathering and analyzing catalog data, focusing on the currency and consistency of controlled headings. The resulting data provide insight into libraries' use of changed headings and their success in maintaining currency and consistency, and the systems needed to support the current pace of heading changes.
- Date
- 10. 9.2000 17:38:22
-
Sauperl, A.: Precoordination or not? : a new view of the old question (2009)
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- Abstract
- Purpose - This paper aims to discuss some long-standing issues of the development of a subject heading language as pre- or postcoordinated. Design/methodology/approach - In a review of literature on pre- and postcoordination and user behaviour, 20 criteria originally discussed by Svenonius are considered. Findings - The advantages and disadvantages of pre- and postcoordinated systems are on a very similar level. Most subject heading languages developed recently are precoordinated. They all require investments in highly skilled intellectual work, and are therefore expensive and difficult to maintain. Postcoordinated systems seem to have more advantages for information providers, but less for users. However, most of these disadvantages could be overcome by known information retrieval models and techniques. Research limitations/implications - The criteria originally discussed by Svenonius are difficult to evaluate in an exact manner. Some of them are also irrelevant because of changes in information retrieval systems. Practical implications - It was found that the decision on whether to use a pre- or postcoordinated system cannot be taken independent of consideration of the subject authority file and the functions of an information retrieval system, which should support users on one hand and information providers and indexers on the other. Originality/value - This literature review brings together some findings that have not been considered together previously.
- Content
- Bezug zu: Svenonius, E.: Precoordination or not?. In: Subject indexing: principles and practices in the 90's. Proceedings of the IFLA Satellite Meeting Held in Lisbon, Portugal, 17-18 August 1993, and sponsored by the IFLA Section on Classification and Indexing and the Instituto da Biblioteca Nacional e do Livro, Lisbon, Portugal. Ed.: R.P. Holley et al. München: Saur 1995. S.231-255.
- Date
- 20. 6.2010 14:22:43
-
MacEwan, A.: Crossing language barriers in Europe : Linking LCSH to other subject heading languages (2000)
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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
-
Viti, E.: My first ten years : nuovo soggettario growing, development and integration with other knowledge organization systems (2017)
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- Abstract
- The Nuovo Soggettario is a subject indexing system edited by the Biblioteca Nazionale Centrale di Firenze. It was presented to librarians from across Italy on 8 February 2007 in Florence as a new edition of the Soggettario (1956), and it has become the official Italian subject indexing tool. This system is made up of two individual and interactive components: the general thesaurus, accessible on the web since 2007 and the rules of a conventional syntax for the construction of subject strings. The Nuovo soggettario thesaurus has grown significantly in terms of terminology and connections with other knowledge organization tools (e.g., encyclopedias, dictionaries, resources of archives and museums, and other information data sets), offering the users the possibility to browse through documents, books, objects, photographs, etc. The conversion of the Nuovo soggettario thesaurus into formats suitable for the semantic web and linked data world improves its function as an interlinking hub for direct searching and for organizing content by different professional communities. Thanks to structured data and the SKOS format, the Nuovo soggettario thesaurus is published on the Data Hub platform, thus giving broad visibility to the BNCF and its precious patrimony.
- Content
- Beitrag eines Special Issue: ISKO-Italy: 8' Incontro ISKO Italia, Università di Bologna, 22 maggio 2017, Bologna, Italia.
-
Hartley, J.; Sydes, M.: Which layout do you prefer? : an analysis of readers' preferences for different typographic layouts of structured abstracts (1996)
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- Abstract
- Structured abstracts are abstracts which include subheadings such as: background, aims, participants methods and results. These are rapidly replacing traditional abstracts in medical periodicals, but the number and detail of the subheadings used varies, and there is a range of different typographic settings. Reviews a number of studies designed to investigate readers' preferences for different typographic settings and layout. Over 400 readers took part in the study: students; postgraduates; research workers and academics in the social sciences. The most preferred version emerged from the last of 3 studies and 2 additional studies were then carried out to determine preferences for the overall position and layout of this most preferred version on a A4 page. The most preferred version for the setting of the subheadings are printed in bold capital letters
- Source
- Journal of information science. 22(1996) no.1, S.27-37
-
Cheti, A.; Viti, E.: Functionality and merits of a faceted thesaurus : the case of the Nuovo soggettario (2023)
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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
-
Craven, T.C.: Changing technologies: impact on information: the case of string indexing (1985)
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-
Duncan, D.: IFLA Core Programme for Universal Bibliographic Control and International MARC (UBCIM) and Division of Bibliographic Control reports on activities 1994-1995 : Section on Classification and Indexing (1996)
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- Abstract
- Discusses the work of the Section on Classification and Indexing, covering the working group on principles underlying subject heading languages; a state of the art survey of subject heading systems; requirements for a format for classification data; DDC edition 20; open programs at the Istanbul conference; the section newsletter; and cooperative projects
-
Chan, L.M.: Library of Congress Subject Headings : principles and application (1995)
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- Date
- 25.11.2005 18:37:22
-
Coates, E.J.: Subject catalogues : headings and structure (1988)
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- Abstract
- This is a reissue of a book originally published in 1960. The new release includes a preface by the author reviewing automation's impact on subject cataloging sind 1960, with emphasis on the BNB and British Technology Index
-
Mann, T.: Is precoordination unnecessary in LCSH? : Are Web sites more important to catalog than books?: a reference librarian's thought on the future of bibliographic control (2000)
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- Footnote
- Beitrag einer 'Conference on Bibliographic Control in the New Millennium (Library of Congress)'
-
Jouguelet, S.: Indexation: mode d'emploi international (1993)
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- Abstract
- Survey on the indexing systems used in 11 countries, such as thesauri, RSWK, LCSH and COMPASS as well as less known systems
-
Drabenstott, K.M.; Dede, B.A.R.; Leavit, M.: ¬The changes of meaning in subdivided subject headings (1999)
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- Abstract
- The impetus for a large-scale study on subject heading understanding was a recommendation of the Library of Congress (LC) Subject Subdivisions Conference that suggested standardizing the order of subject subdivisions for the purpose of simplifying subject cataloging. This paper focuses on unexpected large-scale study findings about multiple meanings for subdivided subject headings and the effects that changes of meaning for different orders of subdivisions had on the meanings that end users and librarians provided to subdivided subject headings. Findings about changes of meaning in subdivided subject headings did not dissuade the authors regarding their recommendation that the library community adopt a standard order of subdivisions. The authors also give suggestions for additional studies of subject heading understanding that build on this one.
-
Villiers, L. de: On-line subject retrieval on CPALS : help us choose! (1996)
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-
Hoerman, H.L.; Furniss, K.A.: 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 (2000)
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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
-
Heiner-Freiling, M.: Survey on subject heading languages used in national libraries and bibliographies (2000)
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- Abstract
- Surveys conducted during the last four years under the auspices of the International Federation of Library Associations and Organizations (IFLA) reveal that the Library of Congress Subject Headings is heavily used in national libraries outside of the United States, particularly in English-speaking countries. Many other countries report using a translation or adaptation of LCSH as their principal subject heading language. Magda Heiner-Freiling presents an analysis of the IFLA data, which also includes information on the classification schemes used by the libraries and whether or not the libraries have produced a manual on the creation and application of subject headings. The paper concludes with an Appendix showing the complete data from the 88 national libraries that respond to the surveys
-
Library of Congress Subject Headings (1999)
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- Content
- The new edition adds 6,000 new headings and their references; LCSH now has a total of 245,000 authority records (of which 185,000 topical, 37,200 geographical). There 229,000 non-descriptors. There exists also a cumulative Microform Edition (LCSH 17th ed. on Microfiche), distributed quarterly, a weekly tape update service and a CDROM version (quarterly). 1992). Also, an LC Subject Headings Weekly List is available, an uptodate source of the latest subject authority information on new, changed, and deleted headings. (available on the Web hhtp://Icweb.loc.gov/catdir/cpso/wls.html). Instructions how to use the LCSH in: Subject Cataloging Manual: Subject Headings (5th. ed. 1996) with semiannual updates
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Leth, P.; Berg, I.: Subject indexing in Sweden (2008)
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- Abstract
- This article will look into subject indexing in Sweden today and give some ideas of the future. Our Swedish subject heading system is pre-coordinated and based on Library of Congress Subject Headings (LCSH). We think subject access is important but it is not always easy to apply correctly and we present some ideas on how to make it easier. We will first give a summary of the creation of the Swedish subject heading system and how it works today. We will also describe a new project, the TGM project, that was completed at the end of 2007. Another work that will be described is the indexing of fiction and children's literature.
- Source
- New pespectives on subject indexing and classification: essays in honour of Magda Heiner-Freiling. Red.: K. Knull-Schlomann, u.a
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Biswas, S.C.; Smith, F.: Efficiency and effectiveness of deep structure based indexing languages : PRECIS vs. DSIS (1991)
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- Abstract
- A subject indexing language (SIL) is an artificial language used for formulating names of subjects and is composed of (a) a vocabulary, (b) a list of elementary categories, and (c) the rules of syntax. A string indexing language is an SIL, whose expressions are multiple overlappimg index entries, constructed accordingly to explicit syntax rules. PRECIS, developed by Austin, and POPSI, developed by Bhattacharyya, are two such string indexing languages. DSIS is a more versatile version of the POPSI system, developed by Devadason. There have been several attempts to compare and evaluate the superiority of one system over another, with the exception that none of these tried to compare their performances from the searcher's point of view. This present study tries to compare the efficiency and effectiveness of printed subject indexes produced by PRECIS and DSIS on a non-empirical basis and based on the following five major characteristics of index entries identified by Craven as desirable from the searcher's viewpoint: (1) predicitibility, (2) collocation, (3) clarity, (4) succinctness, and (5) eliminability. A representative sample of 600 documents (both macro and micro), chosen from three different social science subject fields, has been used as the test data. The main points of discussion are (a) the term structure, (b) the term relationships, and (c) the entry structure, generated by the two systems. On the whole, a PRECIS index performs better than a DSIS index in terms of most of the above characteristics. It has been concluded that the user will search the former more efficiently and effectively than the latter
- Source
- International forum on information and documentation. 16(1991), S.6-21
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Dailey, J.E.: ¬The grammar of subject headings: a formulation of rules for subject headings based on syntactical and morphological analysis of the Library of Congress list (1957)
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