首页> 外文OA文献 >Optimal Experimental Design for Large-Scale Bayesian Inverse Problems
【2h】

Optimal Experimental Design for Large-Scale Bayesian Inverse Problems

机译:大规模贝叶斯逆问题的最优实验设计

摘要

We develop a Bayesian framework for the optimal experimental design of the shock tube experiments which are being carried out at the KAUST Clean Combustion Research Center. The unknown parameters are the pre-exponential parameters and the activation energies in the reaction rate expressions. The control parameters are the initial mixture composition and the temperature. The approach is based on first building a polynomial based surrogate model for the observables relevant to the shock tube experiments. Based on these surrogates, a novel MAP based approach is used to estimate the expected information gain in the proposed experiments, and to select the best experimental set-ups yielding the optimal expected information gains. The validity of the approach is tested using synthetic data generated by sampling the PC surrogate. We finally outline a methodology for validation using actual laboratory experiments, and extending experimental design methodology to the cases where the control parameters are noisy.
机译:我们为在KAUST清洁燃烧研究中心进行的冲击管实验的最佳实验设计开发了贝叶斯框架。未知参数是反应速率表达式中的指数前参数和活化能。控制参数是初始混合物组成和温度。该方法基于首先为与冲击管实验相关的可观察物建立基于多项式的替代模型。基于这些替代,使用一种新颖的基于MAP的方法来估计所提议实验中的预期信息增益,并选择产生最佳预期信息增益的最佳实验设置。使用通过对PC代理进行采样生成的综合数据来测试该方法的有效性。最后,我们概述了使用实际实验室实验进行验证的方法,并将实验设计方法扩展到控制参数嘈杂的情况。

著录项

  • 作者

    Ghattas Omar;

  • 作者单位
  • 年度 2014
  • 总页数
  • 原文格式 PDF
  • 正文语种
  • 中图分类

相似文献

  • 外文文献
  • 中文文献
  • 专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号