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1McCray, A.T. ; Bodenreider, O.: ¬A conceptual framework for the biomedical domain.
In: The semantics of relationships: an interdisciplinary perspective. Eds: Green, R., C.A. Bean u. S.H. Myaeng. Dordrecht : Kluwer Academic Publishers, 2002. S.181-198.
(Information science and knowledge management; vol.3)
Abstract: Specialized domains often come with an extensive terminology, suitable for storing and exchanging information, but not necessarily for knowledge processing. Knowledge structures such as semantic networks, or ontologies, are required to explore the semantics of a domain. The UMLS project at the National Library of Medicine is a research effort to develop knowledge-based resources for the biomedical domain. The Metathesaurus is a large body of knowledge that defines and inter-relates 730,000 biomedical concepts, and the Semantic Network defines the semantic principles that apply to this domain. This chapter presents these two knowledge sources and illustrates through a research study how they can collaborate to further structure the domain. The limits of the approach are discussed.
Anmerkung: Mit Abbildungen zu UMLS
Wissenschaftsfach: Medizin ; Biochemie
2McCray, A.T. ; Nelson, S.J.: ¬The representation of meaning in the UMLS.
In: Methods of information in medicine. 34(1995) nos.1/2, S.193-201.
Abstract: The Unified Medical Language System knowledge source provide detailed information about biomedical naming systems and databases. The Metathesaurus contains biomedical terminology from an increasing number of biomedical thesauri, and the Semantic Netowrk provides a structure that encompasses and unifies the thesauri that are included in the Metathesaurus. Addresses some fundamental principles underlying the design and development of the Metathesaurus and Semantic Network. Describes the formal properties of the semantic network. Considers the principle of semantic locality and how this is reflected in the UMLS knowledge sources. Discusses the issues involved in attempting to reuse knowledge and the potential for reuse of the UMLS knowledge sources
Themenfeld: Konzeption und Anwendung des Prinzips Thesaurus
4McCray, A.T.: Natural language research program.
In: International information communication and education. 11(1992) no.2, S.256-258.
Abstract: Briefly describes the Natural Language Systems Program of the Lister Hill National Center for Biomedical Communications, VA, which conducts research in natural language processing to improve access to biomedical information stored in computerized form