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Ji Hoon Han – Bridging PDEs and machine learning

July 3 @ 4:00 pm - 5:00 pm KST

https://www.ibs.re.kr, 55 Expo-ro Yuseong-gu
Daejeon, Daejeon 34126 Korea, Republic of
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Speaker

Ji Hoon Han
State University of New York at Albany

Abstract: This talk consists of two main parts. In the first part, I will discuss
a numerical method for solving PDEs based on a stochastic representation
of the solution. This approach captures the underlying particle dynamics
associated with the physical processes described by the PDE. By
aggregating information from the particles’ collective exploration, the
method iteratively reinforces the approximation toward the solution. I
will cover its analysis regarding the trainability and highlight its
effectiveness across a broad class of problems, including elliptic
equations with interfaces, multiscale structures, and perforated
domains, as well as hyperbolic-type problems such as the Eikonal and
Burgers equations.
In the second part, I will present a method for learning in-between
imagery dynamics. This approach integrates PDE models within latent
spaces to enhance both learning capability and interpretability.
Notably, this method demonstrates robustness in capturing intricate
dynamics, such as rotation and outflow, which pose significant
challenges for current state-of-the-art optimal transport methods.

Details

Date:
July 3
Time:
4:00 pm - 5:00 pm KST
Event Category:

Organizer

Jae Kyoung Kim
Email
jaekkim@kaist.ac.kr

Venue

B232 Seminar Room, IBS
55 Expo-ro Yuseong-gu
Daejeon, Daejeon 34126 Korea, Republic of
+ Google Map
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IBS 의생명수학그룹 Biomedical Mathematics Group
기초과학연구원 수리및계산과학연구단 의생명수학그룹
대전 유성구 엑스포로 55 (우) 34126
IBS Biomedical Mathematics Group (BIMAG)
Institute for Basic Science (IBS)
55 Expo-ro Yuseong-gu Daejeon 34126 South Korea
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