UMLS concept indexing for production databases: a feasibility study.

ABSTRACT:

Objectives

To explore the feasibility of using the National Library of Medicine's Unified Medical Language System (UMLS) Metathesaurus as the basis for a computational strategy to identify concepts in medical narrative text preparatory to indexing. To quantitatively evaluate this strategy in terms of true positives, false positives (spuriously identified concepts) and false negatives (concepts missed by the identification process).

Methods

Using the 1999 UMLS Metathesaurus, the authors processed a training set of 100 documents (50 discharge summaries, 50 surgical notes) with a concept-identification program, whose output was manually analyzed. They flagged concepts that were erroneously identified and added new concepts that were not identified by the program, recording the

SUBMITTER: Nadkarni P 

PROVIDER: S-EPMC134593 | biostudies-literature | 2001 Jan-Feb

REPOSITORIES: biostudies-literature