报告时间：2021年05月14日（星期五）13:30—14:30

报告地点：数学楼三楼会议室

报告人：廖奇峰（上海科技大学）

报告摘要：The domain decomposition uncertainty quantification method (DDUQ) provides a decomposed strategy to conduct uncertainty analysis for complex engineering systems governed by PDEs. In DDUQ, uncertainty analysis on each local component is independently conducted in an ``offline phase, and global uncertainty analysis results are assembled using precomputed local information in an ``online phase through importance sampling. The performance of DDUQ relies on the coupling surrogates and probability density estimation during the importance sampling procedure. Since coupling surrogates can give high-dimensional interface parameters, we in this work develop flow based interface coupling strategy, which dramatically improve the efficiency of DDUQ.

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邀请人：陈景润