Particle Swarm Optimizer Networks with Stochastic Connection for Improvement of Diversity Search Ability to Solve Multimodal Optimization Problems

Tomoyuki SASAKI  Hidehiro NAKANO  Arata MIYAUCHI  Akira TAGUCHI  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E100-A   No.4   pp.996-1007
Publication Date: 2017/04/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E100.A.996
Type of Manuscript: PAPER
Category: Nonlinear Problems
metaheuristic methods,  particle swarm optimizer networks,  network topology,  stochastic connection,  

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Particle swarm optimizer network (PSON) is one of the multi-swarm PSOs. In PSON, a population is divided into multiple sub-PSOs, each of which searches a solution space independently. Although PSON has a good solving performance, it may be trapped into a local optimum solution. In this paper, we introduce into PSON a dynamic stochastic network topology called “PSON with stochastic connection” (PSON-SC). In PSON-SC, each sub-PSO can be connected to the global best (gbest) information memory and refer to gbest stochastically. We show clearly herein that the diversity of PSON-SC is higher than that of PSON, while confirming the effectiveness of PSON-SC by many numerical simulations.