Dynamical blueprints: exploiting levels of system-environment interaction

  • Authors:
  • Nicolás S. Estévez;Hod Lipson

  • Affiliations:
  • Cornell University;Cornell University

  • Venue:
  • Proceedings of the 9th annual conference on Genetic and evolutionary computation
  • Year:
  • 2007

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Abstract

Developmental systems typically produce a phenotype through a generative process whose outcome depends on feedback from the environment. In most artificial developmental systems, this feedback occurs in one way: The environment affects the development process, but the development process does not necessarily affect the environment. Here we explore a condition where both the developing system and the environment affect each other on a similar timescale, thus resulting in system-environment dynamical interaction. Using a model inspired by termite nest construction, we demonstrate how evolution can exploit this system-environment dynamics to generate adaptive and self-repairing structure more efficiently than a purely reactive developmental system. Finally, we offer a metric to quantify the level of interaction and distinguish between reactive and interactive developmental systems.