RIT on ML for Rare Events Archives for Fall 2023 to Spring 2024

Organizational meeting

When: Fri, September 9, 2022 - 2:00pm
Where: Kirwan Hall 1310
Speaker: Maria Cameron (UMCP) - https://www.math.umd.edu/~mariakc/

Optimal Controller and estimation of transition rate in Transition Path Theory

When: Fri, September 23, 2022 - 2:00pm
Where: Kirwan Hall 1310
Speaker: Jiaxin (Margot) Yuan () -

Variational quantum simulation of stochastic differential equations.

When: Fri, October 28, 2022 - 2:00pm
Where: Kirwan Hall 1311
Speaker: Mohammad Junaid Aftab (UMD College Park) -

Variational quantum simulation of stochastic differential equations

When: Fri, November 4, 2022 - 2:00pm
Where: Kirwan Hall 1310
Speaker: Mohammad Junaid Aftab () -

Modeling the fracture of polymer networks

When: Fri, November 11, 2022 - 2:00pm
Where: Kirwan Hall 1310
Speaker: Manyuan Tao (UMD) -

Machine learning, model reduction, and optimal control for quantifying rare events in stochastic systems

When: Fri, February 3, 2023 - 2:00pm
Where: Kirwan Hall 1310
Speaker: Maria Cameron (UMCP) - https://www.math.umd.edu/~mariakc/
Abstract: This will be an introductory talk about challenges in quantifying rare events in stochastic systems and recently developed approaches to address these challenges.

Causal disentanglement via causal graph

When: Fri, February 10, 2023 - 2:00pm
Where: kirwan hall 1310
Speaker: Jiaxin Yuan (Margot) (AMSC) -

Finite expression method for solving PDEs. Application to the committor problem

When: Fri, February 17, 2023 - 2:00pm
Where: Kirwan 1310
Speaker: Zezheng Song (UMD) -

Physics-Informed Neural Networks for Numerical Solutions of PDEs

When: Fri, March 10, 2023 - 2:00pm
Where: MATH1310
Speaker: Jiajing (JJ) Guan (UMCP) -

Bayesian inference using Generative Adversarial Networks

When: Fri, March 31, 2023 - 2:00pm
Where: MATH1310
Speaker: Deep Ray (UMCP) - https://deepray.github.io

A Bayesian Framework for Persistent Homology

When: Fri, April 7, 2023 - 2:00pm
Where: Kirwan Hall 1310
Speaker: Rachel Lee (UMD College Park) -

Reservoir Computing

When: Fri, April 14, 2023 - 2:00pm
Where: MATH1310
Speaker: Frank McBride (UMCP) -

Recent progress on the butterfly factorization

When: Fri, May 5, 2023 - 2:00pm
Where: MATH1310
Speaker: Samuel Potter (NYU) - https://sampotter.github.io
Abstract: The butterfly factorization was introduced by Michielssen and Boag as a purely linear algebra-based fast algorithm for solving high-frequency scattering problems. It was later adapted to the numerical evaluation of special function transforms and other oscillatory integrals. We present recent results related to the butterfly factorization in two areas. First, we show how the butterfly factorization can be used to accelerate the transform associated with a discretized Laplace-Beltrami eigenbasis on a surface in 3D. Second, we present numerical results indicating that a reasonable implementation of the Michielssen and Boag "multilevel matrix decomposition algorithm" (MLMDA, or multilevel butterfly factorization) is competitive with the high-frequency fast multipole method in 2D. The common thread is a new software library for butterfly factorizations written in C which is under active development.