arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1107.0927stat.APcs.ITmath.ITphysics.data-an
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预测模型选择在耦合模型中的应用

Application of Predictive Model Selection to Coupled Models

Gabriel Terejanu, Todd Oliver, Chris Simmons

摘要:

提出了一种预测贝叶斯模型选择方法来区分用于预测未观测到的感兴趣量(QoI)的耦合模型。气候、航空航天和国防等各种关键应用都需要准确的预测。引入模型问题来研究两个物理/子分量耦合产生的预测。对于每个物理领域,都有一组模型类和一组传感器观测值。然后,使用贝叶斯模型选择的预测方法的目标导向算法来选择最佳预测QoI的单个物理模型的组合。结果表明,最好的耦合模型的预测是一个提供最强大的预测分布的生活质量。

英文摘要:

A predictive Bayesian model selection approach is presented to discriminate coupled models used to predict an unobserved quantity of interest (QoI). The need for accurate predictions arises in a variety of critical applications such as climate, aerospace and defense. A model problem is introduced to study the prediction yielded by the coupling of two physics/sub-components. For each single physics domain, a set of model classes and a set of sensor observations are available. A goal-oriented algorithm using a predictive approach to Bayesian model selection is then used to select the combination of single physics models that best predict the QoI. It is shown that the best coupled model for prediction is the one that provides the most robust predictive distribution for the QoI.

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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