Stefan Schulz Medical Informatics Research Group

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Presentation transcript:

Stefan Schulz Medical Informatics Research Group University Medical Center Freiburg, Germany Ontologies, Terminologies, Information Models & Knowledge Repositories in DEBUGIT What are they (for) ?

Terminology Ontology

Terminology Ontology Set of terms used in a particular subject field. bla bla bla Terminology Ontology Set of terms used in a particular subject field.  Precise formulation of the properties and relations of entities relevant for a particular subject field.

Terminology Ontology Concept Hepatitis: Type: Hepatitis: {Hepatitis (D), Leberentzündung (D), hepatitis (E), hépatite (F)} Type: Hepatitis: Description: ”Every hepatitis is an inflammatory disease that is located in some liver” Terminology Ontology Set of terms used in a particular subject field.  Precise formulation of the properties and relations of entities relevant for a particular subject field.

Clinical Knowledge Repository Generalized domain knowledge: Different degrees of evidence Controversial, hypothetical Probabilistic Terminology Ontology Repository of clinical data of individual patients: observer / method dependent fuzzy, speculative, uncertain diagnostic hypotheses confirmed or ruled out Information Models

Clinical Knowledge Repository Viral Hepatitis has signs & symptoms…. has epidemiology… has prognosis… is treated with… Clinical Knowledge Repository Concept Hepatitis: Meaning of the terms {Hepatitis (D), Leberentzündung (D), hepatitis (E), hépatite (F)} Type Hepatitis: x: instanceOf(x, Hepatitis)  instanceOf(x, Inflammation)  y: instanceOf(y, Liver)  hasLocation(x,y) Terminology Ontology Patient X: At admission: fever, jaundice, hepatomegaly: suspected viral hepatitis, Information Models

Clinical Knowledge Repository Provides semantic identifiers Terminology Ontology Provides semantic identifiers Information Models

Clinical Vocabularies Clinical Knowledge Repository Terminology Ontology Clinical Vocabularies Information Models

The role of the Ontology in DEBUGIT Shared language-independent semantic reference Used by Information Model and Knowledge repository Linked to multilingual terms where necessary First steps Delimit conceptual scope Create DEBUG-IT ontology re-using (and linking to) existing sources, especially SNOMED Tools: Protégé Representation language: OWL-DL

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