Learning sets of related concepts: A shared task model
Tim Hume, Michael J. Pazzani · 1996
Initial Psychological Experimentation In the first experiment, subjects were asked to imagine that they work for the US Forest Service and were assigned the task of learning to predict years in which there is a severe risk of forest fire danger in the fall. Four concepts had to be learned in the experiment -- one concept in each of four phases. All subjects learned the same 3 background concepts in phases 1-3. Then, for phase 4, they were divided into two groups (the logical consistency group and the feature consistency group) to learn one of two separate concepts which depended on the background concepts. We investigate learning a set of causally related concepts from examples. We show that human subjects make fewer errors and learn more rapidly when the set of concepts is logically consistent. We compare the results of these subjects to subjects learning equivalent concepts that share sets of relevant features, but are not logically consistent. We present a shared-task neural...