Towards a Knowledge-Level Model of Context and Context Use in Diagnostic Problems

  • Authors:
  • Pinar Öztürk

  • Affiliations:
  • Telecom and Informatics, SINTEF, N-7034 Trondheim, Norway. pinar@informatics.sintef.no

  • Venue:
  • Applied Intelligence
  • Year:
  • 1999

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Abstract

Diagnostic support systems that help solving problems inopen and weak theory domains need to be context-sensitive in order toreveal flexible and efficient behaviour. This paper presents atask-oriented methodology for analysing and modeling contextualknowledge at the knowledge level. We present a context-sensitivediagnosis approach (ConSID) which clarifies the connection betweencontent and process knowledge. The former embodies the domainmodel, while the latter embodies the task and method models. We present aprototypical system, the ConSID-Creek, that applies the ConSID approach tothe medical diagnostic domain. We illustrate how the systemintegrates case-based and explanation-based reasoning paradigms whenrealizing the abductive subtask of the overall diagnostic task.