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Explanations in Knowledge Systems: Design for Explainable Expert Systems
June 1991 (vol. 6 no. 3)
pp. 58-64

The explainable expert systems framework (EES), in which the focus is on capturing those design aspects that are important for producing good explanations, including justifications of the system's actions, explications of general problem-solving strategies, and descriptions of the system's terminology, is discussed. EES was developed as part of the Strategic Computing Initiative of the US Dept. of Defense's Defense Advanced Research Projects Agency (DARPA). both the general principles from which the system was derived and how the system was derived from those principles can be represented in EES. The Program Enhancement Advisor, which is the main prototype on which the explanation work has been developed and tested, is presented. PEA is an advice system that helps users improve their Common Lisp programs by recommending transformations that enhance the user's code. How EES produces better explanations is shown.

Citation:
William. Swartout, Cecile Paris, Johanna Moore, "Explanations in Knowledge Systems: Design for Explainable Expert Systems," IEEE Intelligent Systems, vol. 6, no. 3, pp. 58-64, June 1991, doi:10.1109/64.87686
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