Machine Learning-Based Prediction of New Pareto-Optimal Solutions From Pseudo-Weights

被引:4
作者
Suresh, Anirudh [1 ]
Deb, Kalyanmoy [2 ]
机构
[1] Michigan State Univ, Dept Mech Engn, E Lansing, MI 48824 USA
[2] Michigan State Univ, Dept Elect & Comp Engn, E Lansing, MI 48824 USA
关键词
Task analysis; Optimization; Indexes; Machine learning; Decision making; Predictive models; Prediction algorithms; Machine learning (ML); multicriterion decision making; multiobjective optimization; NONDOMINATED SORTING APPROACH; MULTIOBJECTIVE OPTIMIZATION;
D O I
10.1109/TEVC.2023.3319494
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
Owing to the stochasticity of evolutionary multiobjective optimization (EMO) algorithms and an application with a limited budget of solution evaluations, a perfectly converged and uniformly distributed Pareto-optimal (PO) front cannot be always guaranteed. Thus, a subsequent decision-making (DM) step or a curiosity on the part of the optimization researcher may demand solutions at regions not well-represented by the obtained PO front. In this study, we propose to train machine learning (ML) models to capture the mapping between unique identifiers of PO solutions-pseudo-weight vectors, computed from the existing PO front data, and their corresponding decision variable vectors. These learned models can then be used to predict PO decision variables for any new desired pseudo-weight vector. We evaluate the proposed approach with two different ML methods on a variety of multi- and many-objective test and real-world problems. This procedure can also be incorporated into an EMO algorithm to find a better-converged set of PO solutions, attempt to fill apparent gaps, and find more nondominated solutions at preferred regions of the PO front, facilitating a number of key advances for multiobjective optimization and DM tasks.
引用
收藏
页码:1351 / 1365
页数:15
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