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- W2254598552 abstract "AbstractOne of three knowledge sources being developed as part of the NLM's UMLS Project is a biomedical thesaurus, called the Metathesaurus. The Metathesaurus contains inter-term relationships across six biomedical nomenclatures and classification systems, derivable from lexical mapping techniques. The first public version of the Metathesaurus, called META-1, was built in two stages -- first, source inversion and second, source matching. During the Spring of 1989, “official” versions for the six sources were obtained in machine-readable form. Source specific techniques were derived empirically to analyze the information structure and content of each source. The results of each analysis were used to guide the “inversion” of the corresponding source, resulting in a homogeneous representation for all sources. The core concepts of META-1 come primarily from MEDLINE index terms (MeSH). Previous work on lexical mapping methodology developed algorithmic methods to link concepts in different sources. These methods were refined iteratively, and used to implement a META-1 “matching engine”. The initial version of META-1 was constructed with this engine, by matching the META-1 core concepts to the other sources. This version of META-1 was edited and enhanced by domain experts, after the inclusion of supplementary information, to produce the first publicly released version of META-1." @default.
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- W2254598552 date "1990-11-07" @default.
- W2254598552 modified "2023-09-24" @default.
- W2254598552 title "Source Inversion and Matching in the UMLS Metathesauras" @default.
- W2254598552 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/2245350" @default.
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