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Studwell, W.E.; Rolland-Thomas, P.: ¬The form and structure of a subject heading code (1988)
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Kanjilal, A.: Permuted keyword index using CDS/ISIS : a tutorial (1992)
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- Abstract
- Describes a utility program designed to generate a permuted keyword index from a CDS/ISIS database. The different keywords which are used to describe the subject content of documents are presented together in a string, thus showing the context in which the lead term is used. Indexes can also be generated for any repeatable field, such as author and report number. The string is rotated from left to right to provide an access from each of the terms used. Pascal is the language used and a step by step tutorial is given to create the necessary databases
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Ho, J.: ¬An analysis of the structure of a subject heading list (1993)
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Todd, C.: Maori Subjects Headings : a work in progress (1998)
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Bloomfield, M.: ¬A look at subject headings : a plea for standardization (1993)
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- Abstract
- In the preparation of a book on how to do a literature search, many inconsistencies were found in the assignment of subject terms. The Library of Congress Subject Headings is cited for not bringing computer languages into a consistent pattern. BASIC and FORTRAN are treated differently in their see also references and are without references to the words "computers" or "computer." Also index terms for the literature search on the "search for extraterrestrial life" showed inconsistent patterns in indexing. Catalogers and indexers need to review the work they are currently publishing and try to decide how to bring some standardization to the construction of subject terms. There is a need to provide a single thesaurus for all English index terms.
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Anderson, J.D.; Hofmann, M.A.: ¬A fully faceted syntax for Library of Congress Subject Headings (2006)
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- Abstract
- Moving to a fully faceted syntax would resolve three problems facing Library of Congress Subject Headings (LCSH): 1. Inconsistent syntax rules; 2. Inability to create headings that are coextensive with the topic of a work; and 3. Lack of effective displays for long lists of subdivisions under a single subject heading in OPACs and similar electronic displays. The authors advocate a fully faceted syntax using the facets of a modern faceted library classification (The Bliss Bibliographic Classification, 2d ed.). They demonstrate how this might be accomplished so as to integrate the new syntax with existing headings.
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Studwell, W.E.: ¬A tale of two decades, or, the decline of the fortunes of LC subject headings (1994)
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- Abstract
- Claims that there is no clear plan, comprehensive philosophy, or macro approach to the revision of Library of Congress Subject Headings. Having missed a great opportunity in the mid-1980s to develop a subject analog of AACR2, LC is now in a period of decline. Discusses alternatives to LC subject access such as PRECIS and keyword searching. Urges LC to halt and reverse the decline by bold, decisive action in the 1990s
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Studwell, W.E.: ¬The three camps : the present and possible future status of subject access in online catalogues (1996)
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- Abstract
- Considers the future of LCSH and whether their viability can be maintained through a written standardization code. Until there is an online substitute for LC subject headings which has been tested on a large scale over a period of time, a successor to the present combination of LC's controlled vocabulary headings plus computerized techniques such as keyword searching is unlikely to emerge
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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
-
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
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Cheti, A.: ¬Il GRIS dall'elaborazione alla sperimentazione (1997)
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- Abstract
- Discusses the work of GRIS, a collaborative project of Italian academic and research libraries, to develop subject heading schemes for Italian libraries, resulting in the recent publication of the 'Guida all'indicizzazione per soggetto'
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Biswas, P.: Rooted in the past : use of "East Indians" in Library of Congress Subject Headings (2018)
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- Abstract
- This article argues that the use of the Library of Congress subject heading "East Indians" in reference to individuals from India represents not only a problematic vestige of colonialism, but also a failure of the principle of literary warrant. It provides an overview of the term's historical roots and then examines whether the term is still widely used in published resources. Although assigning a subject heading is not easy and can involve a choice between contested realities of diverse peoples, the author contends that a rejection of outdated terminology is central to providing any culturally sensitive tool for resource organization.
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Drabenstott, K.M.: Interpreting the findings of "A study of library users and their understanding of subject headings" (1999)
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Satija, M.P.; Joo, S.; Jeong, E.-J.: ¬The 21st sdition (2014) of the Sears List of Subject Headings : a brief introduction (2015)
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- Abstract
- States in brief the new features of the recently released 21st edition of the Sears List of Subject Headings. Introduces its new editor Barbara A. Bristow, and the new publisher EBSCO Information Services which recently acquired Sears' founder publisher since 1923, the H.W. Wilson Company. Names a few new subject headings in areas like science, technology, engineering and medicine (STEM). In this edition there are a total of 250 new headings making it a total of 10,000 preferred headings meant for small and medium sized libraries. Critically examines inconsistencies in a few headings. States the additional features of the online edition. Concludes to say the new edition maintains its stellar reputation of a handy list of general subject headings.
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Liu, Y.-H.; Wacholder, N.: Evaluating the impact of MeSH (Medical Subject Headings) terms on different types of searchers (2017)
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- Abstract
- A commonly used technique for improving search engine performance is result caching. In result caching, precomputed results (e.g., URLs and snippets of best matching pages) of certain queries are stored in a fast-access storage. The future occurrences of a query whose results are already stored in the cache can be directly served by the result cache, eliminating the need to process the query using costly computing resources. Although other performance metrics are possible, the main performance metric for evaluating the success of a result cache is hit rate. In this work, we present a machine learning approach to improve the hit rate of a result cache by facilitating a large number of features extracted from search engine query logs. We then apply the proposed machine learning approach to static, dynamic, and static-dynamic caching. Compared to the previous methods in the literature, the proposed approach improves the hit rate of the result cache up to 0.66%, which corresponds to 9.60% of the potential room for improvement.
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Dykstra, M.: Can subject headings be saved? (1988)
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Craven, T.C.: Changing technologies: impact on information: the case of string indexing (1985)
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Sicker, W.: Zur Unterscheidung zwischen Such- und Informationswert bei der Schlagwortgebung (1970)
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Villiers, L. de: On-line subject retrieval on CPALS : help us choose! (1996)
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- Abstract
- A decision must be made about the selection of a system of subject headings for the Library Service of the Western Cape in South Africa. Describes the advantages and disadvantages of the LCSH and of the Provincial Library Service of the Western Cape Subject Indes with a request to users to provide feedback about the preferred system
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Da Silva, A.M.; Azevedo, L.M. de; Nogueira, M.D.L.R.: ¬A aplicacao do SIPORbase : uma proposta de indexacao do manuscrito e do livro antigo (1995)
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- Abstract
- SIPORbase, the System for Indexing in Portuguese, was developed by the National Library of Portugal, based on the LCSH. In contrast to the Brunet-Parguez system used in France, SIPORbase is a coextensive indexing language. Its initial application in 1989 to current bibliography has been extended to the collection of codices. Experience with manuscripts only indicates a high degree of relevance in retrieval, from the several hundred subject headings created so far
- Content
- Revised version of a presentation given at a LIBER workshop on The Brunet-Parguez system for subject indexing of ancient books, held in Toulouse in Feb 1994
- Footnote
- Übers. d. Titels: The application of SIPORbase: a proposal for indexing ancient manuscripts and books
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- a
