-
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
-
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.
-
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
-
Dhawan, S.M.; Yerkey, A.N.: Trends in subject heading assignment in cataloging records during 1974-1978 (1983)
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- Source
- Information processing and management. 19(1983), S.213-222
-
Miller, U.; Teitelbaum, R.: Pre-coordination and post-coordination : past and future (2002)
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- Abstract
- This article deals with the meaningful processing of information in relation to two systems of Information processing: pre-coordination and post-coordination. The different approaches are discussed, with emphasis an the need for a controlled vocabulary in information retrieval. Assigned indexing, which employs a controlled vocabulary, is described in detail. Types of indexing language can be divided into two broad groups - those using pre-coordinated terms and those depending an post-coordination. They represent two different basic approaches in processing and Information retrieval. The historical development of these two approaches is described, as well as the two tools that apply to these approaches: thesauri and subject headings.
-
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
-
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
-
Mikacic, M.: Teorijski osnove sustava za predmetno oznacivanje (1996)
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- Abstract
- The book comprises the following chapters: Introduction; Basic concepts and data, definitions and terms; Codes for compilation of subject catalogues and subject heading lists in European and North American countries; codes for compilation of subject catalogues in Yoguslavia 1950-1990; Standards for the establishment of monolingual thesauri and standards for subject cataloguing; Theoretical bases of principles and of fundamental rules for subject cataloguing displayed in contemporary scientific works; Theory of classified and alphabetical subject catalogues; Syntactical systems for subject designation
-
Newsom, C.; Lundgren, J.; Poehlmann, N.: Genre terms for chemistry and engineering : not just for literature anymore (2008)
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- Abstract
- We developed a project utilizing the local form/genre heading, "property data," and specific subheadings to help chemists, engineers, and those librarians assisting them to more easily locate library resources containing chemical and physical properties of substances. This article describes the project and examines possibilities for improving access to physical sciences literature in relation to Library of Congress Subject Headings and ongoing developments in authority records for form/genre terms. It also introduces functionality of such headings in the new "next generation" catalogs.
-
Iwe, J.I.: Linguistics and information processing : provision of syntactic and semantic consistency in the language of Library of Congress Subject Headings (LCSH) pertaining to literature and librarianship: a comparative analysis (2001)
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- Abstract
- The syntactic and semantic consistency of the subject headings of Library of Congress is a matter of concern to cataloguers who must use appropriate terminologies to describe library materials undergoing processing. This paper looks at the structure of these headings by analyzing comparatively the syntactic types that make up the structures as listed in Literature and Librarianship on pages 3075 to 3085 and 3114 to 3117 respectively. Their semantic implications are also highlighted. Consistency and specificity are terms often used in criticizing LCSH. This paper examines the application of these two concepts on the structures believing that a thorough understanding of the syntactic types would help the cataloguer to determine the most appropriate and specific heading to use.
-
Bodoff, D.; Kambil, A.: Partial coordination : II. A preliminary evaluation and failure analysis (1998)
0.01
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- Abstract
- Partial coordination is a new method for cataloging documents for subject access. It is especially designed to enhance the precision of document searches in online environments. This article reports a preliminary evaluation of partial coordination that shows promising results compared with full-text retrieval. We also report the difficulties in empirically evaluating the effectiveness of automatic full-text retrieval in contrast to mixed methods such as partial coordination which combine human cataloging with computerized retrieval. Based on our study, we propose research in this area will substantially benefit from a common framework for failure analysis and a common data set. This will allow information retrieval researchers adapting 'library style'cataloging to large electronic document collections, as well as those developing automated or mixed methods, to directly compare their proposals for indexing and retrieval. This article concludes by suggesting guidelines for constructing such as testbed
-
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
-
Wiesenmüller, H.: LCSH goes RSWK? : Überlegungen zur Diskussion um die "Library of Congress subject headings" (2009)
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- Abstract
- Im Jahr 1898 begann die Library of Congress mit der Arbeit an einem Schlagwortkatalog - die Geburtsstunde der 'Library of Congress subject headings' (LCSH). Heute stellen die LCSH das zentrale Werkzeug zur verbalen inhaltlichen Erschließung in der gesamten angloamerikanischen Welt dar. Auch die Kritik an diesem Erschließungssystem hat eine lange Geschichte: Sie lässt sich bis in die Mitte des vergangenen Jahrhunderts zurückverfolgen und betraf im Lauf der Zeit recht unterschiedliche Aspekte. Neu an der Debatte der letzten Jahre ist, dass die Struktur der LCSH ganz grundsätzlich in Frage gestellt wird. Eine Projektgruppe der Bibliothek der University of California etwa urteilte 2005: "LCSH's complex syntax and rules for constructing headings restrict its application by requiring highly skilled personnel and limit the effectiveness of automated authority control." In einer für die Library of Congress erstellten Expertise mit dem Titel 'On the record' von 2008 heißt es: "LCSH suffers (...) from a structure that is cumbersome from both administrative and automation points of view". Es wird empfohlen, die LCSH in ein flexibleres Werkzeug zu verwandeln: "Transform LCSH into a tool that provides a more flexible means to create and modify subject authority data." Dies beinhaltet zum einen ein "de-coupling of subject strings", also eine 'Entkoppelung' der fest zusammengefügten (präkombinierten) Eintragungen, und zum anderen die Möglichkeit, das LCSH-Vokabular für "faceted browsing and discovery" nutzbar zu machen . Besonders drastische Worte wurden 2006 im sogenannten 'Calhoun Report' gefunden - einem Papier, das mit seinen radikalen Thesen in der amerikanischen Bibliothekswelt viel Aufsehen erregte: Man müsse die Library of Congress dazu bringen, die LCSH zu 'zerschlagen' ("urge LC to dismantle LCSH") - ja, sie gar zu 'eliminieren' ("eliminate LCSH").
-
Dutta, A.: ¬A journey from Cutter to Austin : critical analysis of their contribution in subject indexing (2017)
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- Abstract
- This writeup presents the fundamentals of subject indexing in terms of its development, scope, coverage, role in subject indexing techniques and the important elements to design a well-structured and effective subject indexing process, requirements and the infrastructure. From the time of RDC to PRECIS, the developers has been envisaged the problems to expand the flexibility and versatility of indexing technique. Whenever one indexing process is failed to achieve the maximum efficiency another is developed on the basis of failure. It concludes that all the developments of subject indexing processes during that era are leads to the innovation of Artificial Intelligence technique (AI), i.e. Natural Language Processing (NLP) by implementation of Information and Communication Technology (ICT) in present time.
-
Liu, Y.-H.; Wacholder, N.: Evaluating the impact of MeSH (Medical Subject Headings) terms on different types of searchers (2017)
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- Source
- Information processing and management. 53(2017) no.4, S.851-870
-
(Sears') List of Subject Headings (1994)
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- Footnote
- Rez. in: Knowledge organization 22(1995) no.1, S.45-46 (M.P. Satija)
-
Studwell, W.E.: Why not an 'AACR' for subject headings? (1985)
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- Date
- 7. 1.2007 13:22:01
-
Sears' list of subject headings (2010)
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- Footnote
- Rez. in: KO 38(2011) no.4, S.360-361 (M.P. Satija): "The 20th edition of the celebrated Sears List (1sted.1923) published in June 2010 sets a new cycle of three year revision. Earlier it was three and a half years to synchronize with the publication of the new edition of the Abridged Dewey revised after every seven years. In the days of constantly updated WebDewey, it is no more a constraint. For the first time Sears List has been released simultaneously in online database format accessible to licensed subscribers. Responding to the environmental changes the basic edition is the online one whose content is designed in MARC authority. Print edition is now a derivative of the MARC data. The editors keep tabs on the changing information seeking behavior of users and how OPACs are accessed; yet the editors or the publishers never discuss the mechanisms of designing a new edition. The new edition features more than 300 new subject headings suggested by librarians from different types of libraries, vendors of bibliographic records, indexers and subject specialists at the H.W. Wilson Company. Every new edition incorporates advances in vocabulary control, changing approaches of library users for subject access and even in the worldwide use of the English language. Each edition of the Sears List strengthens and continues the policies and consolidates the reforms that began with the 15th edition (1994). It is indeed an era of innovations in Sears. The latest knowledge from information science and information seeking behavior has been deployed to modernize the internal structure and grammar of the Sears List. Continuing adaptation constitutes the key to its success and popularity in the shifting sands of the information-seeking behavior of users. But the List is still a living manifestation of the principles of subject cataloguing put forth by C.A. Cutter (1837-1903).
-
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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- Source
- Journal of information science. 22(1996) no.1, S.27-37
