The Unified Medical Language System's (UMLS's) Semantic Network (SN) provides an important conceptual abstraction that helps orient users to the vast knowledge content of its Metathesaurus. However, the SN is itself large and complex, and can also benefit from an additional abstract view of its own. In this paper, we present a metaschema that serves such a purpose. This metaschema is derived from a previously developed partitioning methodology for the SN. The metaschema is formally defined, and used to provide partial compact views of the SN.
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