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理學院
資訊工程學系
學位論文
學位論文
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http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/73912
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search.filters.author.Chang, Chia-Tzu
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search.filters.author.張家慈
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search.filters.subject.Evolutionary algorithms
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search.filters.subject.Multiobjective optimization
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search.filters.subject.Shape Estimation of Pareto front
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search.filters.subject.多目標最佳化
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search.filters.subject.柏拉圖前緣估計
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以 AGE-MOEA-II與改良版環境選擇求解多目標最佳化問題
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2024
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張家慈
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Chang, Chia-Tzu
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多目標最佳化問題是現實應用的常見形式,求解問題時需要同時考慮多個目標之間的取捨關係。多目標演化演算法是求解多目標最佳化問題的常用方法,這類演算法中的關鍵機制就是平衡解族群的收斂性和多樣性。在近年發表的演算法中,AGE-MOEA-II 演算法通過估計柏拉圖前緣的形狀,並依形狀來定義解的多樣性和收斂性,展現了出色的效能表現。然而AGE-MOEA-II 仍有其值得改進之處,本論文結合了其它現有演算法的設計,一方面刪減無益於收斂性的解個體,一方面修改其應對凸型柏拉圖前緣時的多樣性評估機制。我們使用 13 個公開測試函式進行實驗,實驗結果顯示本論文所引入的機制可有效提升求解品質;與六個現有演算法相比,本論文所提出的改良版 AGE-MOEA-II 在兩項常見的效能指標 IGD 與 HV 都有更好的表現。
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