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Author Rector, Alan ♦ Iannone, Luigi
Source CiteSeerX
Content type Text
File Format PDF
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Potential Candidate Concept ♦ Snomed Ct Definition ♦ Filtered Candidate ♦ Candidate Chronic ♦ Definition Acute Disease ♦ Potential Candidate ♦ Spurious Lexical Match ♦ Chronic Finding ♦ Pre-coordinated Concept ♦ Large Majority ♦ Logically Define ♦ Snomed Author ♦ Acute Concept ♦ Umls Core Problem List ♦ Common Qualifier ♦ Clinical Course ♦ Local Clinical Expert ♦ Post-coordinated Expression ♦ Candidate Misclassifications ♦ Semantic Technique ♦ Expected Accuracy ♦ Snomed Ct ♦ Quality Assurance ♦ Chronic Disease
Description A study of the use of common qualifiers in SNOMED CT definitions and the resulting classification was undertaken using combined lexical and semantic techniques. The accuracy of SNOMED authors in formulating definitions for pre-coordinated concepts was taken as a proxy for the expected accuracy of users formulating post-coordinated expressions. The study focused on “acute” and “chronic” as used within a module based on the UMLS CORE Problem List and using the pattern of SNOMED CT’s definition Acute disease and Chronic disease. Scripts were used to identify potential candidate concepts whose names suggested that they should be classified as acute or chronic findings. The potential candidates were filtered by local clinical experts to eliminate spurious lexical matches. Scripts were then use to determine which of the filtered candidates were not classified under acute or chronic findings as expected. The results were that 28 % and 20 % of candidate chronic and acute concepts, respectively, were not so classified. Of these candidate misclassifications, the large majority occurred because “acute ” and “chronic ” are sometimes specified by qualifiers for clinical course and sometimes for morphology, a fact mentioned but not fully detailed in the User
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study
Learning Resource Type Article
Publisher Date 2011-01-01
Publisher Institution AMIA JOURNAL 2011