Methods Inf Med 1995; 34(01/02): 193-201
DOI: 10.1055/s-0038-1634592
Original article
Schattauer GmbH

The Representation of Meaning in the UMLS

A. T. McCray
1   National Library of Medicine, Bethesda, MD
,
S. J. Nelson
2   Medical College of Georgia, Augusta, GA, USA
› Author Affiliations
Further Information

Publication History

Publication Date:
09 February 2018 (online)

Abstract:

The UMLS knowledge sources provide detailed information about biomedical naming systems and databases. The Metathesaurus contains biomedical terminology from an increasing number of biomedical thesauri, and the Semantic Network provides a structure that encompasses and unifies the thesauri that are included in the Metathesaurus. This paper addresses some fundamental principles underlying the design and development of the Metathesaurus and Semantic Network. It begins with a description of the formal properties of thesauri, including the Metathesaurus, and the formal properties of the Semantic Network. It continues with consideration of the principle of semantic locality and how this is reflected in the UMLS knowledge sources. The paper concludes with a discussion of the issues involved in attempting to re-use knowledge and the potential for re-use of the UMLS knowledge sources.

 
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