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References: Concept Labeling and Metadata Standards

  1. Simple Knowledge Organization System - Wikipedia - Describes the W3C SKOS standard for representing controlled vocabularies with prefLabel, altLabel, and broader/narrower relationships, the exact model this chapter uses to explain preferred and alternate labels.

  2. Dublin Core - Wikipedia - Covers the 15-element Dublin Core metadata standard for describing resources like books and datasets, the standard this chapter applies to tagging a learning graph file itself as a discoverable resource.

  3. ISO/IEC 11179 - Wikipedia - Explains the international standard for metadata registries and data element definitions, the source of this chapter's five-criteria test (precise, concise, distinct, non-circular, unencumbered) for a well-formed concept definition.

  4. The Organization of Information (4th Edition) - Arlene G. Taylor and Daniel N. Joudrey - Libraries Unlimited - A foundational library-science textbook covering controlled vocabularies, indexing, and metadata description; grounds this chapter's naming and cataloging vocabulary in professional information-organization practice.

  5. Introduction to Controlled Vocabularies: Terminology for Art, Architecture, and Other Cultural Works (Updated Edition) - Patricia Harpring - Getty Research Institute - Explains how to construct and maintain controlled vocabularies with preferred terms and synonym rings, directly informing this chapter's preferred-label/alternate-label distinction.

  6. SKOS Primer - W3C - The official W3C guide to representing thesauri, taxonomies, and controlled vocabularies in SKOS, walking through prefLabel, altLabel, broader, narrower, and related properties covered in this chapter's SKOS section.

  7. DCMI Metadata Terms - Dublin Core Metadata Initiative - The authoritative specification listing all Dublin Core elements (Title, Creator, Subject, etc.), the reference this chapter draws on for its Dublin Core Metadata Explorer diagram.

  8. ANSI/NISO Z39.19 Guidelines - NISO - The formal standard for constructing and managing monolingual controlled vocabularies, underpinning this chapter's discussion of controlled vocabularies as a governance discipline distinct from the SKOS file format.

  9. Frequently Asked Questions - American Society for Indexing - Explains how professional back-of-book indexes are built and why they require conceptual understanding, illuminating this chapter's claim that a textbook index can be generated automatically from well-labeled concepts.

  10. Understanding Metadata: What Is Metadata, and What Is It For? - NISO - A free primer surveying metadata types and standardization practices, giving broader context for this chapter's specific standards (SKOS, ISO/IEC 11179, Dublin Core) within the wider metadata landscape.