Noise-Induced Adaptive Decision-Making in Ant-Foraging

  • Authors:
  • Bernd Meyer;Madeleine Beekman;Audrey Dussutour

  • Affiliations:
  • FIT Centre for Research in Intelligent Systems, Monash University, Melbourne,;Behaviour and Genetics of Social Insects Lab and Centre for Mathematical Biology, and School of Biological Sciences, University of Sydney,;School of Biological Sciences, University of Sydney,

  • Venue:
  • SAB '08 Proceedings of the 10th international conference on Simulation of Adaptive Behavior: From Animals to Animats
  • Year:
  • 2008

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Abstract

Ant foraging is a paradigmatic example of self-organized behavior. We give new experimental evidence for previously unobserved short-term adaptiveness in ant foraging and show that current mathematical foraging models cannot predict this behavior. As a true extension, we develop Itô diffusion models that explain the newly discovered behavior qualitatively and quantitatively. The theoretical analysis is supported by individual-based simulations. Our work shows that randomness is a key factor in allowing self-organizing systems to be adaptive. Implications for technical applications of Swarm Intelligence are discussed.