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Knowledge representation
Argument mapping
Belief revision
Bodies of Knowledge
Dewey Decimal Classification
Types of groupings
Knowledge representation languages
Knowledge representation software
Knowledge compilation
Lexical databases
Library of Congress Classification
Microformats
Minimum Information Standards
Multi-agent systems
Ontology (information science)
Scientific models
Semantic desktop
Semantic Web
Thesauri (information retrieval)
Ronald J. Brachman
John F. Sowa
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