Can model-based and case-based expert systems operate together?

  • Authors:
  • Moshe Ben-Bassat;Israel Beniaminy;David Joseph

  • Affiliations:
  • -;-;-

  • Venue:
  • ITC '98 Proceedings of the 1998 IEEE International Test Conference
  • Year:
  • 1998

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Abstract

There is an ongoing debate as to whether model-based orcase-based diagnostic expert systems are superior. Ourexperience has shown that the two are not mutuallyexclusive and, to the contrary, complement each other.Current expert system technology is capable of tworeasoning mechanisms, in addition to other mechanisms,integrated into one system. Depending on the knowledgeavailable, and time and cost considerations, expert systemsallow the user to decide the relative proportion of case-basedto model-based reasoning to employ in any givensituation. Diagnostic support software should be evaluatedby two critical factor groups, Ben-Bassat, et al, 1992 [1]:a) cost and time to deployment, and b) accuracy,completeness and efficiency of the diagnostic process. Inthis paper we will discuss the role of expert systems incombining model-based and case-based reasoning to effectthe most efficient user defined solution to diagnosticperformance.