Ripple Down Rules: A Technique for Acquiring Knowledge

Ripple Down Rules: A Technique for Acquiring Knowledge

Debbie Richards (Macquarie University, Australia)
DOI: 10.4018/978-1-59140-045-5.ch013
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Abstract

Knowledge is becoming increasingly recognized as a valuable resource. Given its importance it is surprising that expert systems technology has not become a more common means of utilizing knowledge. In this chapter we review some of the history of expert systems, the shortcomings of first generation expert systems, current approaches and future decisions. In particular we consider a knowledge acquisition and representation technique known as Ripple Down Rules (RDR) that avoids many of the limitations of earlier systems by providing a simple, user-driven knowledge acquisition approach based on the combined use of rules and cases and which support online validation and easy maintenance. RDR has found particular commercial success as a clinical decision support system and we review what features of RDR make it so suited to this domain.

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