Journal
JOURNAL OF DOCUMENTATION
Volume -, Issue -, Pages -Publisher
EMERALD GROUP PUBLISHING LTD
DOI: 10.1108/JD-11-2022-0256
Keywords
Controlled vocabulary; Indexing; Information science; Knowledge organization; LCSH; Library of Congress Subject Headings; Subject heading
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This article examines the flaws in the logical consistency of the Library of Congress Subject Headings (LCSH), the most widely used subject heading system, in representing information science (IS) and knowledge organization (KO). The study employs a method that checks for the presence of core concepts in the system, looks for alternative terms for missing concepts, and identifies semantic relations between subject headings. The findings have implications for controlled vocabularies in general.
Purpose - This article examines the Library of Congress Subject Headings (LCSH), which is the most used subject heading system in the world and an instance of a controlled vocabulary (CV). Design/methodology/approach - The method used to examine the system is based on both authors' subject knowledge in the field of information science (IS) and the subfield of knowledge organization (KO). Core concepts in this domain were examined (1) by checking if they are present or not in the system; (2) if not, by determining whether LCSH contains alternative terms useful for searching documents about the missing concept, by examining books indexed by the Library of Congress; (3) by identifying the semantic relations between subject headings. Findings - The results demonstrate fundamental problems in the logical consistency of the representation of IS and KO in LCSH. Practical implications - The implications for CVs in general are discussed. Originality/value - No previous study has used our method to examine LCSH's coverage of IS.
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