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Peer reviewedSilvester, June P.; Klingbiel, Paul H. – Information Processing and Management, 1993
Describes a system developed at the National Aeronautics and Space Administration (NASA) that automatically converts index terms from the Defense Technical Information Center (DTIC) to NASA thesaurus terms. The NASA Lexical Dictionary (NLD) that generates thesaurus terms for indexing is explained, and the development of machine-aided indexing is…
Descriptors: Automatic Indexing, Federal Government, Public Agencies, Subject Index Terms
Peer reviewedBruandet, Marie-France – Information Processing and Management, 1989
Outlines an approach to the automatic construction of a knowledge base resulting in a system that is able in each phase of its construction to acquire domain knowledge from all new information that it is building, particularly index terms. Topics covered include production rules, the use of semantic networks, and user interfaces. (32 references)…
Descriptors: Automatic Indexing, Classification, Expert Systems, Information Retrieval
