Multifactor sequential disentanglement via structured koopman autoencoders

N Berman, I Naiman, O Azencot - arXiv preprint arXiv:2303.17264, 2023 - arxiv.org
Disentangling complex data to its latent factors of variation is a fundamental task in
representation learning. Existing work on sequential disentanglement mostly provides two …

Investigation of the fluctuating velocity in a single-cell tornado-like vortex based on coherent structure extraction

H Zhang, H Wang, Z Xu, Z Liu, BC Khoo - Physics of Fluids, 2023 - pubs.aip.org
Fluctuating velocity plays an essential role in tornadic winds and the induced transient
loads, while its characteristics are rarely considered in existing tornado models. Based on …

The underlying correlated dynamics in neural training

R Turjeman, T Berkov, I Cohen, G Gilboa - arXiv preprint arXiv:2212.09040, 2022 - arxiv.org
Training of neural networks is a computationally intensive task. The significance of
understanding and modeling the training dynamics is growing as increasingly larger …

Total-variation mode decomposition

I Cohen, T Berkov, G Gilboa - … Conference on Scale Space and Variational …, 2021 - Springer
In this work we analyze the Total Variation (TV) flow applied to one dimensional signals. We
formulate a relation between Dynamic Mode Decomposition (DMD), a dimensionality …

Functional Dimensionality of Koopman Eigenfunction Space

I Cohen, E Appleboim, G Wolansky - arXiv preprint arXiv:2401.02272, 2024 - arxiv.org
This work presents the general form solution of Koopman Partial Differential Equation and
shows that its functional dimensionality is finite. The dimensionality is as the dimensionality …

[图书][B] Latent Modes of Nonlinear Flows: A Koopman Theory Analysis

I Cohen, G Gilboa - 2023 - cambridge.org
Extracting the latent underlying structures of complex nonlinear local and nonlocal flows is
essential for their analysis and modeling. In this Element the authors attempt to provide a …

An operator theoretic approach for analyzing sequence neural networks

I Naiman, O Azencot - Proceedings of the AAAI conference on artificial …, 2023 - ojs.aaai.org
Analyzing the inner mechanisms of deep neural networks is a fundamental task in machine
learning. Existing work provides limited analysis or it depends on local theories, such as …

Latent Modes of Nonlinear Flows--a Koopman Theory Analysis

I Cohen, G Gilboa - arXiv preprint arXiv:2107.07456, 2021 - arxiv.org
Extracting the latent underlying structures of complex nonlinear local and nonlocal flows is
essential for their analysis and modeling. In this work, we attempt to provide a consistent …

A Minimal Set of Koopman Eigenfunctions--Analysis and Numerics

I Cohen, E Appleboim - arXiv preprint arXiv:2303.05837, 2023 - arxiv.org
Research on Koopman operator theory has focused on three key areas for several decades:
the mathematical structure of the Koopman eigenfunction space, the basis of this space, and …

[PDF][PDF] Examining the limitations of dynamic mode decomposition through koopman theory analysis

I Cohen, G Gilboa - arXiv preprint arXiv:2107.07456, 2021 - researchgate.net
This work binds the existence of Koopman Eigenfunction (KEF), the geometric of the
dynamics, and the validity of Dynamic Mode Decomposition (DMD) to one coherent theory …