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arXiv 2204.06830math.OC
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混合整数约束多目标非光滑最优化的一种无导数方法

A derivative-free approach to mixed integer constrained multiobjective nonsmooth optimization

Giampaolo Liuzzi, Stefano Lucidi

摘要:

在这项工作中,我们考虑多目标最优化问题与约束约束的变量和一般的非线性约束,目标和约束函数值只能通过查询一个黑盒。此外,我们考虑的情况下,一个子集的变量只能采取整数值。我们提出了一个新的基于线搜索的解决方案的方法,并表明它收敛到一组固定点的问题。对于连续变量,我们采用了一种估计帕累托前沿最近提出的文献中,并利用密集序列的搜索方向的战略。必须假设离散值的变量的子集处理使用适当修改的原始方向,以考虑到存在一个以上的目标函数。一组测试问题的数值结果与其他解决方法的比较表明,所提出的方法的可行性和效率。

英文摘要:

In this work, we consider multiobjective optimization problems with both bound constraints on the variables and general nonlinear constraints, where objective and constraint function values can only be obtained by querying a black box. Furthermore, we consider the case where a subset of the variables can only take integer values. We propose a new linesearch-based solution method and show that it converges to a set of stationary points for the problem. For what concerns the continuous variables, we employ a strategy for the estimation of the Pareto frontier recently proposed in the literature and which takes advantage of dense sequences of search directions. The subset of variables that must assume discrete values are dealt with using primitive directions appropriately modified to take into account the presence of more than one objective functions. Numerical results obtained with the proposed method on a set of test problems and comparison with other solution methods show the viability and efficiency of the proposed approach.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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