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Structural group-based auditing of missing hierarchical relationships in UMLS.
Yan Chen
Huanying Helen Gu
Yehoshua Perl
James Geller
Published in:
J. Biomed. Informatics (2009)
Keyphrases
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structural model
missing data
structural patterns
group members
structural models
homogeneous groups
expert systems
hierarchical structure
knowledge structures
hierarchical model
umls metathesaurus
multiresolution
domain knowledge
knowledge based systems
free text
missing information