【摘要】 在对微粒群优化信息传播模式进行定义的基础上,提出一种改进型PSO算法.该算法从提高算法运算效率,防止局部最优的角度出发,采用了一种用于微粒群算法最优值通讯的逻辑分层延迟传播模式.在该种传播模式下,其优化信息的传播范围具有逻辑分组延迟和随计算进行逐渐扩大的传播特征,从而保证了算法的遍历性和全局收敛特征.计算机仿真结果证明了所提出算法的有效性.更多还原

【Abstract】 <Abstrcat> A modified particle swarm optimization (PSO) algorithm is presented based on defining the optimum information broadcasting mode. This algorithm adoptes a kind of logical layered-and-delayed broadcasting mode used for optimum information communicating with the purpose of improving the operation efficiency of the algorithm and avoiding local optimum. In this kind of broadcasting mode, broadcasting scope of the optimum information is provided with logical grouped-and-delayed characteristic and spreading scope characteristic along with the iteration, and the ergodicity and global convergence is guaranteed. The simulation results show the efectiveness of the algorithm.更多还原