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Evolving Globally Synchronized Cellular Automata

Author

Listed:
  • Rajarshi Das
  • James P. Crutchfield
  • Melanie Mitchell
  • James E. Hanson

Abstract

How does an evolutionary process interact with a decentralized, distributed system in order to produce globally coordinated behavior? Using a genetic algorithm (GA) to evolve cellular automata (CAs), we show that the evolution of spontaneous synchronization, one type of emergent coordination, takes advantage of the underlying medium's potential to form embedded particles. The particles, typically phase defects between sychronous regions, are designed by the evolutionary process to resolve frustrations in the global phase. We describe in detail one typical solution discovered by the GA, delineating the discovered synchronization algorithm in terms of embedded particles and their interactions. We also use the particle-level description to analyze the evolutionary sequence by which this solution was discovered. Our results have implications both for understanding emergent collective behavior in natural systems and for the automatic programming of decentralized spatially extended multiprocessor systems.

Suggested Citation

  • Rajarshi Das & James P. Crutchfield & Melanie Mitchell & James E. Hanson, 1995. "Evolving Globally Synchronized Cellular Automata," Working Papers 95-01-005, Santa Fe Institute.
    • Handle: RePEc:wop:safiwp:95-01-005
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    Cited by:

    1. Christian M. Reidys & Peter F. Stadler, 1998. "Neutrality in Fitness Landscapes," Working Papers 98-10-089, Santa Fe Institute.
    2. James E. Hanson & James P. Crutchfield, 1995. "Computational Mechanics of Cellular Automata: An Example," Working Papers 95-10-095, Santa Fe Institute.
    3. Wim Hordijk, 1997. "Correlation Analysis of the Synchronizing-CA Landscape," Working Papers 97-01-005, Santa Fe Institute.
    4. Wim Hordijk & James P. Crutchfield & Melanie Mitchell, 1998. "Mechanisms of Emergent Computation in Cellular Automata," Working Papers 98-04-034, Santa Fe Institute.
    5. Wim Hordijk, 1996. "The Structurte of the Synchronizing-CA Landscape," Working Papers 96-09-077, Santa Fe Institute.

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