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Abstract

Computer models of evolutionary phenomena often assume that the fitness of an individual can be evaluated in isolation, but effective communication requires that individuals interact. Existing models directly reward speakers for improved behavior on the part of the listeners so that, essentially, effective communication is fitness. We present new models in which, even though 'speaking truthfully' provides no tangible benefit to the speaker, effective communication nonetheless evolves. A large population is spatially distributed so that 'communication range' approximately correlates with 'breeding range,' so that most of the time 'you'll be talking to family,' allowing kin selection to encourage the emergence of communication. However, the emergence of altruistic communication also creates niches that can be exploited by 'information parasites.' The new models display complex and subtle long-term dynamics as the global implications of such social dilemmas are played out.

@inproceedings{ackley94altruismIn,
  author={D. H. Ackley and M. L. Littman},
  title={Altruism in the evolution of communication},
  year={1994},
  pages={40-48},
  address={Cambridge, MA},
  editor={R. Brooks and P. Maes},
  publisher={MIT Press},
  booktitle={Artificial Life IV},
  url={http://www.isrl.uiuc.edu/~amag/langev/paper/ackley94altruismIn.html}
}

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