Abstract

For searching for all local optimization of the multi-modal function,a chaos-PSO algorithm based on nonlinear conjugate gradient algorithm was proposed. This algorithm employed chaos sequence to initialize particle swarm location in order to enhance the diversity of population,and then utilized improved PSO cognitive model to search all local optimization in the feasible region,and then used nonlinear conjugate gradient algorithm to improve the accuracy of the sub-optimal solution which chaos-PSO has found. The experiments manifest that the hybrid algorithm can properly and quickly find all local optimization of the continuous-differential function.

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