1 简介
２０１６年 Ｍｉｒｊａｌｉｌｉ等 人通过模仿座头鲸气泡网狩猎策略提出了鲸鱼优化算法（ＷｈａｌｅＯｐｔｉｍｉｚａ－ｔｉｏｎＡｌｇｏｒｉｔｈｍ，ＷＯＡ）。基本原理：
2 部分代码
%_________________________________________________________________________%
% Whale Optimization Algorithm (WOA) source codes demo 1.0 %
% You can simply define your cost in a seperate file and load its handle to fobj
% The initial parameters that you need are:
%__________________________________________
% fobj = @YourCostFunction
% dim = number of your variables
% Max_iteration = maximum number of generations
% SearchAgents_no = number of search agents
% lb=[lb1,lb2,...,lbn] where lbn is the lower bound of variable n
% ub=[ub1,ub2,...,ubn] where ubn is the upper bound of variable n
% If all the variables have equal lower bound you can just
% define lb and ub as two single number numbers
% To run WOA: [Best_score,Best_pos,WOA_cg_curve]=WOA(SearchAgents_no,Max_iteration,lb,ub,dim,fobj)
%__________________________________________
clear all
clc
SearchAgents_no=30; % Number of search agents
Function_name='F4'; % Name of the test function that can be from F1 to F23 (Table 1,2,3 in the paper)
Max_iteration=1000; % Maximum numbef of iterations
% Load details of the selected benchmark function
[lb,ub,dim,fobj]=Get_Functions_details(Function_name);
[Best_score,Best_pos,WOA_cg_curve]=WOA(SearchAgents_no,Max_iteration,lb,ub,dim,fobj);
figure('Position',[269 240 660 290])
%Draw search space
subplot(1,2,1);
func_plot(Function_name);
title('Parameter space')
xlabel('x_1');
ylabel('x_2');
zlabel([Function_name,'( x_1 , x_2 )'])
%Draw objective space
subplot(1,2,2);
semilogy(WOA_cg_curve,'Color','r')
title('Objective space')
xlabel('Iteration');
ylabel('Best score obtained so far');
axis tight
grid on
box on
legend('WOA')
display(['The best solution obtained by WOA is : ', num2str(Best_pos)]);
display(['The best optimal value of the objective funciton found by WOA is : ', num2str(Best_score)]);
img =gcf; %获取当前画图的句柄
print(img, '-dpng', '-r600', './运行结果4.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]黄清宝, 李俊兴, 宋春宁, 徐辰华, & 林小峰. (2020). 基于余弦控制因子和多项式变异的鲸鱼优化算法. 控制与决策(3), 10.
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