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References: Taxonomy Design Deep Dive

  1. Taxonomy - Wikipedia - Surveys classification-scheme principles across domains, general background for this chapter's Classification Scheme and Exclusive Category sections.

  2. Polyhierarchy - Wikipedia - Defines polyhierarchical classification directly, the precise concept this chapter's Polyhierarchy section contrasts against exclusive-category schemes.

  3. Ontology (information science) - Wikipedia - Covers classes, properties, and formal relationships in information-science ontologies, directly underlying this chapter's Ontology Class and Ontology Property sections.

  4. Knowledge organization - Wikipedia - Surveys balance, coverage, and boundary concerns in classification systems generally, background for this chapter's Category Balance, Category Coverage, and Category Overlap sections.

  5. Faceted classification - Wikipedia - Contrasts single-hierarchy and multi-dimensional classification approaches, useful context for this chapter's depth-versus-breadth trade-off discussion.

  6. Data type - Wikipedia - Explains typed values in formal systems, background for this chapter's Semantic Type section, which applies the same typing discipline to concept and property values.

  7. SKOS Simple Knowledge Organization System Reference - W3C - The official specification for skos:broader, skos:narrower, and skos:related, the formal source for this chapter's Hierarchical Relation and Associative Relation grouping.

  8. Concept drift - Wikipedia - Describes how a classification's statistical properties degrade over time in machine learning, an analogous background concept for this chapter's Taxonomy Drift section, applied here to human-curated categories rather than statistical models.

  9. Building Intelligent Interactive Tutors - Beverly Park Woolf - Morgan Kaufmann - Discusses domain-model and knowledge-classification design for educational systems, relevant background for this chapter's taxonomy-quality metrics as applied to a learning-graph domain model.

  10. Schema (database) - Wikipedia - Frames validation against a formal structure, background for this chapter's Taxonomy Validation section, which applies a Chapter 5-style validation discipline to taxonomy quality rather than graph structure.