Abstract
In chapter 5 we created a basic expert system shell. This shell lacks some important facilities that were outlined in chapter 3 and classed as desirable. In this chapter we examine some of the missing facilities, in particular those of explanation, justification and provision for handling uncertainty. But first we identify a simple, but nevertheless important extension.
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Further reading
For a very practical treatment of explanations, read Robert H. Ennis’s book, Logic in Teaching (Prentice-Hall, 1969).
PROSPECTOR’S scheme is described in Richard Duda, John Gaschnig and Peter Hart’s ‘Model Design in the PROSPECTOR Consultant System for Mineral Exploitation’ in Expert Systems in the Micro Electronic Age, ed. D. Michie (Edinburgh University Press, 1979).
Edward H. Shortliffe describes his reasons for departing from Bayes’ rule and the rationale for MYCIN’s certainty factor mechanisms in his book, Computer Based Medical Consultation: MYCIN (Elsevier, 1976).
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© 1985 Peter S. Sell
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Sell, P.S. (1985). Facilities. In: Expert Systems — A Practical Introduction. Macmillan Computer Science Series. Palgrave, London. https://doi.org/10.1007/978-1-349-07416-7_7
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DOI: https://doi.org/10.1007/978-1-349-07416-7_7
Publisher Name: Palgrave, London
Print ISBN: 978-1-349-07418-1
Online ISBN: 978-1-349-07416-7
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