ncku-talk2023-06-02

Applied Mathematics Seminar

DATE 2023-06-02　15:10-16:00

PLACE 數學系3樓會議室

SPEAKER Professor Yen-Hsi Richard Tsai（Department of Mathematics and Oden Institute for Computational Engineering and Sciences The University of Texas at Austin）

TITLE Time-Parallel Wave Propagation in Heterogeneous Media Aided by Deep Learning

ABSTRACT We present a deep learning framework for learning multiscale wave propagation in heterogeneous media. The framework involves the construction of linear feed-forward networks (experts) that specialize in different media groups and a nonlinear "committee" network that gives an improved approximation of wave propagation in more complicated media. The framework is then applied to stabilize the "parareal" schemes of Lions, Maday, and Turinici, which are time-parallelization schemes for evolutionary problems.

Applied Mathematics Seminar

DATE	2023-06-02　15:10-16:00

PLACE	數學系3樓會議室

SPEAKER	Professor Yen-Hsi Richard Tsai（Department of Mathematics and Oden Institute for Computational Engineering and Sciences The University of Texas at Austin）

TITLE	Time-Parallel Wave Propagation in Heterogeneous Media Aided by Deep Learning

ABSTRACT	We present a deep learning framework for learning multiscale wave propagation in heterogeneous media. The framework involves the construction of linear feed-forward networks (experts) that specialize in different media groups and a nonlinear "committee" network that gives an improved approximation of wave propagation in more complicated media. The framework is then applied to stabilize the "parareal" schemes of Lions, Maday, and Turinici, which are time-parallelization schemes for evolutionary problems.