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arXiv 2604.12005cs.LGcs.AI
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BayMOTH:基于元前瞻的贝叶斯优化——一种简单方法

BayMOTH: Bayesian optiMizatiOn with meTa-lookahead -- a simple approacH

Laboratory for Laser Energetics(激光能实验室);Department of Mechanical Engineering(机械工程系);Hewlett Packard Labs(惠普实验室);Department of Computer Science(计算机科学系);Department of Physics(物理系)

Rahman Ejaz, Varchas Gopalaswamy, Ricardo Luna, Aarne Lees, Vineet Gundecha, Christopher Kanan, Soumyendu Sarkar, Riccardo Betti

AI总结:

本文提出一种简单高效的元贝叶斯优化算法,通过在统一框架中利用相关任务信息或回溯优化,提升样本效率并保持低相关性任务下的性能。

摘要:

贝叶斯优化(BO)在序列优化昂贵的黑盒函数方面已显示出在许多现实场景中的实用性和有效性。元贝叶斯优化(meta-BO)旨在通过利用相关任务的信息来提高BO的样本效率。尽管在任务结构转移时meta-BO是样本高效的,但meta训练与测试任务之间的不匹配可能导致在线优化过程中建议次优查询。为此,我们提出了一种简单的meta-BO算法,在确定相关任务信息有用时利用它,否则回溯,所有都在统一的框架内。我们展示了该方法在函数优化任务中与现有方法的竞争力,同时在测试任务与meta训练集结构有限时仍保持强大的性能。

英文摘要:

Bayesian optimization (BO) has for sequential optimization of expensive black-box functions demonstrated practicality and effectiveness in many real-world settings. Meta-Bayesian optimization (meta-BO) focuses on improving the sample efficiency of BO by making use of information from related tasks. Although meta-BO is sample-efficient when task structure transfers, poor alignment between meta-training and test tasks can cause suboptimal queries to be suggested during online optimization. To this end, we propose a simple meta-BO algorithm that utilizes related-task information when determined useful, falling back to lookahead otherwise, within a unified framework. We demonstrate competitiveness of our method with existing approaches on function optimization tasks, while retaining strong performance in low task-relatedness regimes where test tasks share limited structure with the meta-training set.

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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