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A Chemical Specialty Semantic Network For The Unified Medical Language System, C Paul Morrey, Yehoshua Perl, Michael Halper, Ling Chen, Huanying “Helen” Gu
A Chemical Specialty Semantic Network For The Unified Medical Language System, C Paul Morrey, Yehoshua Perl, Michael Halper, Ling Chen, Huanying “Helen” Gu
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Background Terms representing chemical concepts found the Unified Medical Language System (UMLS) are used to derive an expanded semantic network with mutually exclusive semantic types. The UMLS Semantic Network (SN) is composed of a collection of broad categories called semantic types (STs) that are assigned to concepts. Within the UMLS’s coverage of the chemical domain, we find a great deal of concepts being assigned more than one ST. This leads to the situation where the extent of a given ST may contain concepts elaborating variegated semantics. A methodology for expanding the chemical subhierarchy of the SN into a finer-grained categorization …