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2024

03 Wednesday Jul 2024
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04:00 PM 05:00 PM

Analysis and Computation of Wasserstein Geometric Flow in Parameter Space

ABSTRACT We introduce a new parameterization strategy that can be used to design algorithms simulating geometric flows on Wasserstein manifold, the probability density space equipped with optimal t...
Venue: Y5-205, Yeung Kin Man Academic Building
03 Wednesday Jul 2024
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03:00 PM 04:00 PM

A numerical method for semi-discrete optimal transport problems

ABSTRACT First, we review the semi-discrete optimal transport problem and its relation to a Laguerre tessellation.  Then, we propose a new method for solving the semi-discrete optimal transpor...
Venue: Y5-205, Yeung Kin Man Academic Building
25 Tuesday Jun 2024
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03:00 PM 04:00 PM

Voronoi cell-based modelling of two kinds of emergent dynamics: corneal epithelial cell regulation and interclonal cooperativity in cancer evolution

ABSTRACT We develop a Voronoi cell-based model of epithelial cell dynamics and apply it to two different phenomena: (1) the regulation of the cornea, and (2) potential pathways for the evolution of...
Venue: Y5-302, Yeung Kin Man Academic Building
14 Friday Jun 2024
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04:00 PM 05:00 PM

Numerical Linear Algebra and Optimization in Machine Learning and Deep Learning

ABSTRACT Machine Learning (ML) is a scientific study of numerical algorithms and statistical models that computer systems use to effectively predict a specific task without using specific human ins...
Venue: Y5-302, Yeung Kin Man Academic Building
12 Wednesday Jun 2024
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11:00 AM 12:00 PM

Optimality of multiscale decompositions in imaging and inverse problems

ABSTRACT The multiscale decomposition of images developed by Tadmor, Nezzar and Vese in 2004 has been extended to other imaging applications and to inverse problems, even in the nonlinear case, by ...
Venue: Y5-302, Yeung Kin Man Academic Building
15 Monday Apr 2024
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05:00 PM 06:00 PM

Nonlinear Fokker-Planck-Kolmogorov Equations as Gradient Flows on the Space of Probability Measures

ABSTRACT We propose a general method to identify nonlinear Fokker-Planck-Kolmogorov equations (FPK equations) as gradient flows on the space of Borel probability measures on Rd with a natural ...
Venue: LT-10 Yeung Kin Man Academic Building
03 Wednesday Apr 2024
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11:00 AM 12:00 PM

Determination of quasilinear terms from restricted data

ABSTRACT In this talk we will consider the inverse problem of determining a nonlinear term appearing in some class of nonlinear equations....
Venue: Y5-305, Yeung Kin Man Academic Building
27 Wednesday Mar 2024
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02:30 PM 03:30 PM

Mean Field Control: Convergence and Approximation

ABSTRACT Mean field control theory addresses control problems set over (controlled) Fokker-Planck equations....
Venue: 1601, Li Dak Sum Yip Yio Chin Academic Building
20 Wednesday Mar 2024
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03:00 PM 04:00 PM

Conductivity Imaging Using Deep Neural Networks

ABSTRACT Conductivity imaging from various observational data represents one fundamental task in medical imaging....
Venue: B5-210 Yeung Kin Man Academic Building
18 Monday Mar 2024
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02:30 PM 03:30 PM

A direct analytic method leading to Bonnet surfaces

ABSTRACT We characterize the Bonnet surfaces with the single requirement that the mean curvature H of a surface in R^3 admit a reduction to an ordinary differential equation which possesses the Pai...
Venue: Y4302 Yeung Kin Man Academic Building