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Issue No.01 - Spring (1989 vol.4)
pp: 9-15, 19-24
<p>Explaining how knowledge-based systems reason involves presentation user modeling, dialogue structure, and the way systems understand their own problem-solving knowledge and strategies. The authors concentrate on the last of these, noting that such understanding provides any explanations's content. The authors also note that most current approaches to knowledge-based system construction require expressing knowledge and control at such low levels that it's hard to give high-level explanations. Providing an explanation example from a prototypical system (MYCIN) built using generic-task methods, they propose generic-task methodology as one way to build knowledge-based systems that contain basic explanation constructs at appropriate abstraction levels. The central concept of generic tasks is what input-output behavior (i.e. that task function), knowledge needed to perform the task, and inferences appropriate for the task are all specified together.</p>
B. Chandrasekaran, Michael C. Tanner, John R. Josephson, "Explaining Control Strategies in Problem Solving", IEEE Intelligent Systems, vol.4, no. 1, pp. 9-15, 19-24, Spring 1989, doi:10.1109/64.21896
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