【优化求解】基于缎蓝园丁鸟优化算法 (SBO)求解单目标问题附matlab代码
求解单目标问题附matlab代码)
1 简介2 部分代码%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % Satin Bowerbird Optimizer(SBO) %% clc; clear; close all; tic %% Problem Definition Function_nameF1; [lowerbound,upperbound,numbervar,costfcn]cost_functions(Function_name); % VarSize[1 numbervar]; %% SBO Parameters [MaxIt,nPop,alpha,pMutation,sigma]SBO_parameters(lowerbound,upperbound); %% Initialization [pop,elite,BestCost]Initialization(nPop,lowerbound,upperbound,numbervar,MaxIt,costfcn); %% SBO Main Loop for it1:MaxIt newpoppop; %Calculating the Fitness of each bower Fzeros(nPop,1); for i1:nPop • if pop(i).Cost0 • F(i)1/(1pop(i).Cost); • else • F(i)1abs(pop(i).Cost); • end end %Calculating the probability of each bower PF/sum(F); %changes at any bower for i1:nPop • for k1:numbervar • • % Select target bower • jRouletteWheelSelection(P); • • % Calculating Step Size • lambdaalpha/(1P(j)); • • newpop(i).Position(k)pop(i).Position(k) ... • lambda*(((pop(j).Position(k)elite(k))/2)-pop(i).Position(k)); • • % Mutation • if randpMutation • newpop(i).Position(k)newpop(i).Position(k)(sigma*randn); • • end • • end • % Evaluation • newpop(i).Costcostfcn(newpop(i).Position); end • pop[pop • newpop • ]; %#ok % Sort Population [~, SortOrder]sort([pop.Cost]); poppop(SortOrder); poppop(1:nPop); % Update Best Solution Ever Found BestSolpop(1); eliteBestSol.Position; % Store Best Cost Ever Found BestCost(it)BestSol.Cost; % Show Iteration Information disp([SBO:: Iteration- num2str(it) -----Best Cost num2str(BestCost(it))]); end toc %% Results disp([BestSol num2str(elite)]); disp([BestCost num2str(BestSol.Cost)]); figure; semilogy(BestCost,LineWidth,2); xlabel(Iteration); ylabel(Best Cost); img gcf; %获取当前画图的句柄 print(img, -dpng, -r600, ./img.png) %即可得到对应格式和期望dpi的图像3 仿真结果4 参考文献[1]王依柔、张达敏、樊英. 非均匀变异的互利自适应缎蓝园丁鸟优化算法. 计算机工程与科学 v.42;No.312.12(2020):135-143.[2]鲁晓艺, 刘升, 韩斐斐,等. 基于自适应权重的缎蓝园丁鸟优化算法[J]. 智能计算机与应用, 2018, 8(6):7.博主简介擅长智能优化算法、神经网络预测、信号处理、元胞自动机、图像处理、路径规划、无人机等多种领域的Matlab仿真相关matlab代码问题可私信交流。部分理论引用网络文献若有侵权联系博主删除。
