Authors: Xingjuan Cai, Ying Tan
Addresses: Division of System Simulation and Computer Application, Taiyuan University of Science and Technology, 030024, China. ' Division of System Simulation and Computer Application, Taiyuan University of Science and Technology, 030024, China
Abstract: Integral-controlled particle swarm optimisation (ICPSO) is a novel variant of particle swarm optimisation by incorporating two integral controllers into the methodology. Although the population diversity of ICPSO is large enough, the performance is not always well when dealing with multi-modal problems, the reason is partly due to the wrong guiding direction dominated by the best location found by entire swarm. Therefore, in this paper, a new strategy, quadratic interpolation method, is introduced to estimate the exact local optima in the best location neighbours. Simulation results show this new variant provide an efficient local search capability than other three variants of particle swarm optimisation when solving multi-modal numerical problems.
Keywords: integral-controlled PSO; particle swarm optimisation; ICPSO; quadratic interpolation; local optima; individual predicted PSO; integral control; simulation.
International Journal of Innovative Computing and Applications, 2009 Vol.2 No.2, pp.115 - 122
Available online: 24 Feb 2010 *Full-text access for editors Access for subscribers Purchase this article Comment on this article