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Literature DB >> 11604725

An object-oriented model for representing semantic locality in the UMLS.

Abstract

Several information models have been developed for the Unified Medical Language System (UMLS). While some models are term-oriented, a knowledge-oriented model is needed for representing semantic locality, i.e. the various semantic links among concepts. We propose an object-oriented model in which the semantic features of the UMLS are made available through four major classes for representing Metathesaurus concepts, semantic types, inter-concept relationships and Semantic Network relationships. Additional semantic methods for reducing the complexity of the hierarchical relationships represented in the UMLS are proposed. Implementation details are presented, as well as examples of use. The interest of this approach is discussed.

Mesh：

Year: 2001 PMID： 11604725 PMCID： PMC4296525

Source DB: PubMed Journal: Stud Health Technol Inform ISSN： 0926-9630

13 in total

An object-oriented model for representing semantic locality in the UMLS.

1. Representing the UMLS as an object-oriented database: modeling issues and advantages.

2. Terminology Query Language: a server interface for concept-oriented terminology systems.

3. The NLM Indexing Initiative.

4. Aggregating UMLS semantic types for reducing conceptual complexity.

5. Methods for exploring the semantics of the relationships between co-occurring UMLS concepts.

6. Beyond synonymy: exploiting the UMLS semantics in mapping vocabularies.

7. Evaluation of the Unified Medical Language System as a medical knowledge source.

8. Utilizing OODB schema modeling for vocabulary management.

9. The Unified Medical Language System.

10. ASN.1: defining a grammar for the UMLS knowledge sources.

1. Methods for exploring the semantics of the relationships between co-occurring UMLS concepts.

2. The UMLS knowledge source server: an object model for delivering UMLS data.

3. Auditing as part of the terminology design life cycle.

4. Expanding the extent of a UMLS semantic type via group neighborhood auditing.

5. A study of terminology auditors' performance for UMLS semantic type assignments.

6. Concepts and synonymy in the UMLS Metathesaurus.

7. The Neighborhood Auditing Tool: a hybrid interface for auditing the UMLS.