Using Category Structures to Test Iterated Learning as a Method for Identifying Inductive Biases

Cognitive Science 32 (1):68-107 (2008)
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Many of the problems studied in cognitive science are inductive problems, requiring people to evaluate hypotheses in the light of data. The key to solving these problems successfully is having the right inductive biases—assumptions about the world that make it possible to choose between hypotheses that are equally consistent with the observed data. This article explores a novel experimental method for identifying the biases that guide human inductive inferences. The idea behind this method is simple: This article uses the responses produced by a participant on one trial to generate the stimuli that either they or another participant will see on the next. A formal analysis of this “iterated learning” procedure, based on the assumption that the learners are Bayesian agents, predicts that it should reveal the inductive biases of these learners, as expressed in a prior probability distribution over hypotheses. This article presents a series of experiments using stimuli based on a well-studied set of category structures, demonstrating that iterated learning can be used to reveal the inductive biases of human learners.



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Tom Griffiths
Aarhus University

References found in this work

Finding Structure in Time.Jeffrey L. Elman - 1990 - Cognitive Science 14 (2):179-211.
A Study of Thinking.Jerome S. Bruner, Jacqueline J. Goodnow & George A. Austin - 1958 - Philosophy and Phenomenological Research 19 (1):118-119.
Aspects of the Theory of Syntax.John Lyons - 1966 - Philosophical Quarterly 16 (65):393-395.

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