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Evolving to Generalize: Trading Precision for Speed

O'Connor, Cailin (2015) Evolving to Generalize: Trading Precision for Speed. [Preprint]

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Abstract

Biologists and philosophers of biology have argued that learning rules that do not lead organisms to play evolutionarily stable strategies (ESSes) in games will not be stable and thus not evolutionarily successful. This claim, however, stands at odds with the fact that learning generalization---a behavior that cannot lead to ESSes when modeled in games---is observed throughout the animal kingdom. In this paper, I use learning generalization to illustrate how previous analyses of the evolution of learning have gone wrong. It has been widely argued that the function of learning generalization is to allow for swift learning about novel stimuli. I show that in evolutionary game theoretic models learning generalization, despite leading to suboptimal behavior, can indeed speed learning. I further observe that previous analyses of the evolution of learning ignored the short term success of learning rules. If one drops this assumption, I argue, it can be shown that learning generalization will be expected to evolve in these models. I also use this analysis to show how ESS methodology can be misleading, and to reject previous justifications about ESS play derived from analyses of learning.


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Item Type: Preprint
Creators:
CreatorsEmailORCID
O'Connor, Cailin
Keywords: evolution of learning, learning generalization, ESS methodology, evolutionary game theory, stimulus generalization
Subjects: Specific Sciences > Biology
Specific Sciences > Biology > Evolutionary Theory
General Issues > Models and Idealization
Specific Sciences > Psychology/Psychiatry
Depositing User: Dr. Cailin O'Connor
Date Deposited: 10 Apr 2015 14:21
Last Modified: 10 Apr 2015 14:21
Item ID: 11411
Subjects: Specific Sciences > Biology
Specific Sciences > Biology > Evolutionary Theory
General Issues > Models and Idealization
Specific Sciences > Psychology/Psychiatry
Date: 2015
URI: http://philsci-archive.pitt.edu/id/eprint/11411

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