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Predictability in Cellular Automata

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Listed:
  • Alexandru Agapie
  • Anca Andreica
  • Camelia Chira
  • Marius Giuclea

Abstract

Modelled as finite homogeneous Markov chains, probabilistic cellular automata with local transition probabilities in (0, 1) always posses a stationary distribution. This result alone is not very helpful when it comes to predicting the final configuration; one needs also a formula connecting the probabilities in the stationary distribution to some intrinsic feature of the lattice configuration. Previous results on the asynchronous cellular automata have showed that such feature really exists. It is the number of zero-one borders within the automaton's binary configuration. An exponential formula in the number of zero-one borders has been proved for the 1-D, 2-D and 3-D asynchronous automata with neighborhood three, five and seven, respectively. We perform computer experiments on a synchronous cellular automaton to check whether the empirical distribution obeys also that theoretical formula. The numerical results indicate a perfect fit for neighbourhood three and five, which opens the way for a rigorous proof of the formula in this new, synchronous case.

Suggested Citation

  • Alexandru Agapie & Anca Andreica & Camelia Chira & Marius Giuclea, 2014. "Predictability in Cellular Automata," PLOS ONE, Public Library of Science, vol. 9(10), pages 1-7, October.
    • Handle: RePEc:plo:pone00:0108177
    DOI: 10.1371/journal.pone.0108177
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    References listed on IDEAS

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    1. Agapie, Alexandru, 2010. "Simple form of the stationary distribution for 3D cellular automata in a special case," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 389(13), pages 2495-2499.
    2. Agapie, Alexandru & Höns, Robin & Agapie, Adriana, 2010. "Limit behavior of the exponential voter model," Mathematical Social Sciences, Elsevier, vol. 59(3), pages 271-281, May.
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