Blackwell, Tim M. 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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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.

Item Type:	Article
Identification Number (DOI):	https://doi.org/10.1155/2008/893237
Departments, Centres and Research Units:	Computing Research Office > REF2014
Dates:	Date Event 2008 Published
Item ID:	6626
Date Deposited:	05 Mar 2012 08:56
Last Modified:	09 Jul 2018 21:23
Peer Reviewed:	Yes, this version has been peer-reviewed.
URI:	http://research.gold.ac.uk/id/eprint/6626

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