An improved diversity-guided particle swarm optimisation for numerical optimisation

  • Authors:
  • Wenjun Wang;Hui Wang

  • Affiliations:
  • School of Business Administration, Nanchang Institute of Technology, Nanchang 330099, China;School of Information Engineering, Nanchang Institute of Technology, Nanchang 330099, China

  • Venue:
  • International Journal of Computing Science and Mathematics
  • Year:
  • 2014

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Abstract

Particle swarm optimisation PSO is a global optimisation technique, which has shown a good performance on many problems. However, PSO easily falls into local minima because of quick losing of diversity. Some diversity-guided PSO algorithms have been proposed to maintain diversity, but they often slow down the convergence rate. In this paper, we propose an improved diversity-guided PSO algorithm, namely IDPSO, which employs a local search to enhance the exploitation. In addition, a concept of generalised opposition-based learning GOBL is utilised for population initialisation and generation jumping to find high quality of candidate solutions. Experiments are conducted on a set of benchmark functions. Results show that our approach obtains a promising performance when compared with other PSO variants.