arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.11986stat.MLcs.LG
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概率门限鲁棒性测度的贝叶斯求积优化

Bayesian Quadrature Optimization for Probability Threshold Robustness Measure

Nagoya Institute of Technology(名古屋工业大学);RIKEN Center for Advanced Intelligence Project(理化学研究所先进智能项目中心)

Shogo Iwazaki, Yu Inatsu, Ichiro Takeuchi

摘要:

在许多产品开发问题中,产品的性能取决于两类参数,即设计参数和环境参数。虽然前者是完全可控的,但后者取决于产品使用的环境。这样的问题的挑战是要找到的设计参数,最大化的概率,产品的性能将满足所需的必要水平,给定的环境参数的变化。在本文中,我们制定了这个实际问题的主动学习(AL)问题,并提出了有效的算法,理论上保证性能。我们的基本思想是使用高斯过程(GP)模型作为产品开发过程的代理模型,然后将我们的AL问题表示为概率阈值鲁棒性(PTR)度量的贝叶斯正交优化问题。我们推导了PTR测度的可信区间,并提出了PTR测度的优化和水平集估计的AL算法。我们澄清了所提出的算法的理论特性,并证明了它们在合成和现实世界的产品开发问题的效率。

英文摘要:

In many product development problems, the performance of the product is governed by two types of parameters called design parameter and environmental parameter. While the former is fully controllable, the latter varies depending on the environment in which the product is used. The challenge of such a problem is to find the design parameter that maximizes the probability that the performance of the product will meet the desired requisite level given the variation of the environmental parameter. In this paper, we formulate this practical problem as active learning (AL) problems and propose efficient algorithms with theoretically guaranteed performance. Our basic idea is to use Gaussian Process (GP) model as the surrogate model of the product development process, and then to formulate our AL problems as Bayesian Quadrature Optimization problems for probabilistic threshold robustness (PTR) measure. We derive credible intervals for the PTR measure and propose AL algorithms for the optimization and level set estimation of the PTR measure. We clarify the theoretical properties of the proposed algorithms and demonstrate their efficiency in both synthetic and real-world product development problems.

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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