Examination of Particle Tails

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Blackwell, Tim and Bratton, Daniel. 2008. Examination of Particle Tails. Journal of Artificial Evolution and Applications, 2008, pp. 1-10. ISSN 1687-6229 [Article]

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Official URL: http://dx.doi.org/10.1155/2008/893237

Abstract or Description

The tail of the particle swarm optimisation (PSO) position distribution at stagnation is shown to be describable by a power law. This tail fattening is attributed to particle bursting on all length scales. The origin of the power law is concluded to lie in multiplicative randomness, previously encountered in the study of first-order stochastic difference equations, and generalised here to second-order equations. It is argued that recombinant PSO, a competitive PSO variant without multiplicative randomness, does not experience tail fattening at stagnation.

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Article

Identification Number (DOI):

https://doi.org/10.1155/2008/893237