Approaches to Eliminating Cycles in the UMLS Metathesaurus: Naïve vs. Formal

  title={Approaches to Eliminating Cycles in the UMLS Metathesaurus: Na{\"i}ve vs. Formal},
  author={Fleur Mougin and Olivier Bodenreider},
  journal={AMIA ... Annual Symposium proceedings. AMIA Symposium},
Applications exploiting the hierarchical relations recorded in the Unified Medical Language System (UMLS) Metathesaurus suffer from the presence of inconsistencies in these relations. A formal approach to identifying and eliminating circular hierarchical relations has been proposed in previous work, leading to the creation of a directed acyclic Metathesaurus graph. However, this approach is at best semi-automatic and its implementation is far from trivial. A simpler, alternative approach… CONTINUE READING
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