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arXiv 2209.08604cs.NE
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基于知识的交互式多目标进化算法框架

An Interactive Knowledge-based Multi-objective Evolutionary Algorithm Framework for Practical Optimization Problems

Abhiroop Ghosh, Kalyanmoy Deb, Erik Goodman, Ronald Averill

摘要:

经验丰富的用户通常在解决现实世界的优化问题方面具有有用的知识和直觉。用户知识可以被公式化为变量间关系,以帮助优化算法更快地找到好的解决方案。这种变量间的相互作用也可以从优化运行的中间迭代中发现的高性能解决方案中自动学习-这一过程称为创新。这些关系,如果由用户审查,可以在新生成的解决方案中强制执行,以将优化算法导向搜索空间中实际有希望的区域。对于大规模的问题,这些变量关系的数量可能很高,这是一个挑战。本文提出了一种基于知识的交互式进化多目标优化(IK-EMO)框架,该框架从进化的高性能解决方案中提取隐藏的变量关系作为知识,与用户共享以接收反馈,并将其应用于优化过程以提高其有效性。知识提取过程使用系统和优雅的图形分析方法,该方法可以很好地与变量的数量进行缩放。建议IK-EMO的工作证明了三个大规模的现实世界的工程设计问题。所提出的知识提取过程的简单性和优雅性以及高性能解决方案的实现迅速表明了所提出的框架的强大功能。所提出的结果应激励进一步的相互作用为基础的优化研究,在实践中的日常使用。

英文摘要:

Experienced users often have useful knowledge and intuition in solving real-world optimization problems. User knowledge can be formulated as inter-variable relationships to assist an optimization algorithm in finding good solutions faster. Such inter-variable interactions can also be automatically learned from high-performing solutions discovered at intermediate iterations in an optimization run - a process called innovization. These relations, if vetted by the users, can be enforced among newly generated solutions to steer the optimization algorithm towards practically promising regions in the search space. Challenges arise for large-scale problems where the number of such variable relationships may be high. This paper proposes an interactive knowledge-based evolutionary multi-objective optimization (IK-EMO) framework that extracts hidden variable-wise relationships as knowledge from evolving high-performing solutions, shares them with users to receive feedback, and applies them back to the optimization process to improve its effectiveness. The knowledge extraction process uses a systematic and elegant graph analysis method which scales well with number of variables. The working of the proposed IK-EMO is demonstrated on three large-scale real-world engineering design problems. The simplicity and elegance of the proposed knowledge extraction process and achievement of high-performing solutions quickly indicate the power of the proposed framework. The results presented should motivate further such interaction-based optimization studies for their routine use in practice.

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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