Abstract
Author(s): Pazzani, Michael J. | Abstract: The influence of the prior causal knowledge of subjects on the rate of learning, the categories formed, and the attributes attended to during learning is explored. Conjunctive concepts are thought to be easier for subjects to learn than disjunctive concepts. Conditions are reported under which the opposite occurs. In particular, it is demonstrated that prior knowledge can influence the rate of concept learning and that the influence of prior causal knowledge can dominate the influence of the logical form. A computational model of this learning task is presented. In order to represent the prior knowledge of the subjects, an extension to explanation-based learning is developed to deal with imprecise domain knowledge.
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