KI Seminar (online)

The Kantorovich Initiative Seminar takes place online. To attend, please register for the KI mailing list.

 

Trading linearity for elliptiicity: a nonsmooth approach to Einstein's theory of gravity and the Lorentzian splitting theorems
Robert McCann (University of Toronto)

While Einstein’s theory of gravity is formulated in a smooth setting, the celebrated singularity theorems of Hawking and Penrose …

2024, Jul 23 2:00 PM PDT PIMSUBC - ESB4133 & Online (zoom)
Video
Introduction to unbalanced optimal transport and its efficient computational solutions
Laetitia Chapel (Institut Agro Rennes-Angers)
Optimal transport operates on empirical distributions which may contain acquisition artifacts, such as outliers or noise, thereby …
2024, May 23 10:00 AM PDT Online (zoom)
Slides Video
Density functional theory and multi-marginal optimal transport: Introduction
Yair Shenfeld (Brown University)
Density functional theory (DFT) is one of the workhorses of quantum chemistry and material science. In principle, the joint probability …
2024, Apr 4 10:00 AM PDT Online (zoom)
Slides Video
Gromov-Wasserstein Alignment: Statistical and Computational Advancements via Duality
Ziv Goldfeld (Cornell University)
The Gromov-Wasserstein (GW) distance quantifies dissimilarity between metric measure (mm) spaces and provides a natural alignment …
2024, Feb 8 10:00 AM PST Online (zoom)
Slides Video
Unbalanced Optimal Transport: Convex Relaxation and Dynamic Perspectives
Giuseppe Savare (Bocconi University, Italy)
I will try to present an overview of some results of unbalanced optimal transport for positive measures with different total masses, …
2023, Nov 30 10:00 AM -0700 Online (zoom)
Slides Video
Shifted divergences for sampling, privacy, and beyond
Jason Altschuler (U Penn)
Shifted divergences provide a principled way of making information theoretic divergences (e.g. KL) geometrically aware via optimal …
2023, Oct 12 10:00 AM PDT Online (zoom)
Video
Understanding adversarial robustness via optimal transport.
Jakwang Kim (KI postdoc, UBC)
Deep learning-based approaches have succeeded surprisingly in various fields of sciences. In particular, one of the first and most …
2023, Sep 28 10:00 AM PDT Online (zoom)
Slides Video
Free boundary problems in optimal transportation
Jiakun Liu (University of Wollongong, Australia)
In this talk, we introduce some recent regularity results of free boundary in optimal transportation. Particularly for higher order …
2023, Aug 8 3:00 PM PDT UBC - ESB4133 & Zoom (please sign up for the [mailing list](https://math.us8.list-manage.com/subscribe/post?u=c9cc3beec9fa57d7299ac161c&id=845fe9abdc) to receive connection details)
Video
Linearised Optimal Transport Distances
Matthew Thorpe (University of Manchester)
Optimal transport is a powerful tool for measuring the distances between signals and images. A common choice is to use the Wasserstein …
2023, May 4 10:00 AM PDT Online (zoom)
Slides Video
Multivariate Symmetry: Distribution-Free Testing via Optimal Transport
Bodhisattva Sen (Columbia University)

The sign test (Arbuthnott, 1710) and the Wilcoxon signed-rank test (Wilcoxon, 1945) are among the first examples of a nonparametric …

2023, Apr 13 10:00 AM PDT Online (zoom)
Slides Video