clc;
clear;
close all;
% Problem Configuration
ObjectiveFunction = @ZDT1; % Objective function handle
dim = 5; % Number of dimensions
ub = ones(1, dim); % Upper bounds (assuming 1 for all dimensions)
lb = zeros(1, dim); % Lower bounds (assuming 0 for all dimensions)
obj_no = 2; % Number of objectives
% Algorithm Parameters
max_iter = 50; % Maximum number of iterations
ArchiveMaxSize = 100; % Maximum size of the archive
Archive_X = zeros(ArchiveMaxSize, dim); % Initialize archive solutions
Archive_F = ones(ArchiveMaxSize, obj_no) * inf; % Initialize archive fitnesses
Archive_member_no = 0; % Number of members in the archive
Best_rime_rate = inf * ones(1, obj_no); % Best rate (fitness) initialization
Best_rime = zeros(dim, 1); % Best solution initialization
Rimepop = initialization(ArchiveMaxSize, dim, ub, lb); % Population initialization
W = 5; % Weight factor in RIME algorithm (specific to MORIME)
% Main loop for MORIME algorithm
for iter = 1:max_iter
% RimeFactor calculation based on iteration number
RimeFactor = (rand - 0.5) * 2 * cos((pi * iter / (max_iter / 10))) * (1 - round(iter * W / max_iter) / W);
E = sqrt(iter / max_iter); % Exploration factor
% Update Rimepop (population)
for i = 1:ArchiveMaxSize
Rime_rates(i, :) = ObjectiveFunction(Rimepop(i, :));
for j = 1:dim
r1 = rand();
if r1 < E
% Update position based on Rime strategy
Rimepop(i, j) = Best_rime(j) + RimeFactor * ((ub(j) - lb(j)) * rand + lb(j));
end
normalized_rime_rates = normr(Rime_rates);
r2 = rand();
if r2 < normalized_rime_rates(i)
Rimepop(i, j) = Best_rime(j); % Correctly update Rimepop based on Best_rime
end
end
% Boundary Check to keep solutions within bounds
Flag4ub = Rimepop(i, :) > ub;
Flag4lb = Rimepop(i, :) < lb;
Rimepop(i, :) = (Rimepop(i, :) .* (~(Flag4ub + Flag4lb))) + ub .* Flag4ub + lb .* Flag4lb;
end
% Calculate Fitness for each individual in Rimepop
Rime_rates = zeros(ArchiveMaxSize, obj_no);
for i = 1:ArchiveMaxSize
Rime_rates(i, :) = ObjectiveFunction(Rimepop(i, :));
end
% Non-dominated Sorting and Crowding Distance Calculation
Combined_X = [Rimepop; Archive_X(1:Archive_member_no, :)];
Combined_F = [Rime_rates; Archive_F(1:Archive_member_no, :)];
[fronts, ~] = NonDominatedSorting(Combined_F);
crowdingDistances = CrowdingDistance(Combined_F, fronts);
% Update Archive using NSGA-II strategies
[Archive_X, Archive_F, Archive_member_no] = UpdateArchiveUsingNSGAII(fronts, crowdingDistances, Combined_X, Combined_F, ArchiveMaxSize);
% Display iteration information
disp(['At iteration ', num2str(iter), ', MORIME has ', num2str(Archive_member_no), ' non-dominated solutions in the archive']);
end
% Plotting the results
figure;
Draw_ZDT1(); % Function to draw the true Pareto Front (assuming it is defined)
hold on;
plot(Archive_F(:, 1), Archive_F(:, 2), 'ro', 'MarkerSize', 8, 'markerfacecolor', 'k');
legend('True PF', 'Obtained PF');
title('MORIME');
set(gcf, 'pos', [403 466 230 200]); % Setting the figure position and size
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matlab【2024年最新多目标优化算法】【多目标RIME算法】MORIME
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【matlab】【2024年最新多目标优化算法】【多目标RIME算法】【MORIME】 【matlab】【2024年最新多目标优化算法】【多目标RIME算法】【MORIME】 【matlab】【2024年最新多目标优化算法】【多目标RIME算法】【MORIME】 基于多目标RIME算法的混合电力系统安全约束技术经济分析
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MORIME.zip (8个子文件)
MORIME
dominates.m 68B
NonDominatedSorting.m 1KB
initialization.m 721B
MORIME.m 3KB
UpdateArchive.m 1KB
ZDT1.m 201B
Draw_ZDT1.m 426B
UpdateArchiveUsingNSGAII.m 905B
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