Abstraction , Extension and Structural Auditing with the Umls Semantic Network
نویسنده
چکیده
ABSTRACTION, EXTENSION AND STRUCTURAL AUDITING WITH THE UMLS SEMANTIC NETWORKION, EXTENSION AND STRUCTURAL AUDITING WITH THE UMLS SEMANTIC NETWORK
منابع مشابه
Auditing the UMLS for redundant classifications
The UMLS's Semantic Network (SN) serves as a valuable abstraction for the underlying concept repository called the Metathesaurus (META). Specifically, the SN forms a classification layer for the META, with each of the META's constituent concepts assigned to one or more semantic types in the SN. The rule in the design of the SN is to have concepts explicitly assigned to the lowest possible seman...
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OBJECTIVE To use the semantic and structural properties in the Unified Medical Language System (UMLS) Metathesaurus to characterize and discover potential relationships. DESIGN The UMLS integrates knowledge from several biomedical terminologies. This knowledge can be used to discover implicit semantic relationships between concepts. In this paper, the authors propose a problem-independent app...
متن کاملAuditing associative relations across two knowledge sources
OBJECTIVES This paper proposes a novel semantic method for auditing associative relations in biomedical terminologies. We tested our methodology on two Unified Medical Language System (UMLS) knowledge sources. METHODS We use the UMLS semantic groups as high-level representations of the domain and range of relationships in the Metathesaurus and in the Semantic Network. A mapping created betwee...
متن کاملThe cohesive metaschema: a higher-level abstraction of the UMLS Semantic Network
The Unified Medical Language System (UMLS) joins together a group of established medical terminologies in a unified knowledge representation framework. Two major resources of the UMLS are its Metathesaurus, containing a large number of concepts, and the Semantic Network (SN), containing semantic types and forming an abstraction of the Metathesaurus. However, the SN itself is large and complex a...
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BACKGROUND The Refined Semantic Network (RSN) for the UMLS was previously introduced to complement the UMLS Semantic Network (SN). The RSN partitions the UMLS Metathesaurus (META) into disjoint groups of concepts. Each such group is semantically uniform. However, the RSN was initially an order of magnitude larger than the SN, which is undesirable since to be useful, a semantic network should be...
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