Two algorithmic enhancements for the parallel differential evolution. (11th January 2011)

• Record Type: Journal Article
• Authors: Weber, Matthieu; Neri, Ferrante; Tirronen, Ville
• Is Part Of: International journal of innovative computing and applications. Volume 3:Number 1(2011)
• Page Start: 20
• Page End: 30
• Publication Date: 2011-01-11
• Subjects: evolutionary algorithm -- differential evolution -- DE -- structured population -- parallel differential evolution -- PDE -- component decomposition -- endemic control parameters; Evolutionary computation -- Periodicals; Neural networks (Computer science) -- Periodicals; Genetic programming (Computer science) -- Periodicals; Biologically-inspired computing -- Periodicals; Swarm intelligence -- Periodicals; Quantum computers -- Periodicals; 006.3
• Languages: English
• ISSNs: 1751-648X

Abstract

This paper proposes the use of two algorithms based on the parallel differential evolution. The first algorithm proposes the use of endemic control parameters within a parallel differential evolution algorithm; the differential evolution running at each subpopulation is associated with randomly initialised scale factor and crossover rate, which are then repeatedly updated during the optimisation process. The second algorithm proposes decomposing the search space of large-scale problems into lower-dimensionality subspaces, and associating each of these to one subpopulation of a parallel differential evolution algorithm. Each subpopulation is running a modified differential evolution algorithm, where the crossover function is limited to components of the subpopulation's associated subspace. According to numerical results, both algorithms seem to be clear improvements over the original parallel distributed evolution; they are simple, robust, and efficient algorithms suited for various applications.