A review of change of variable formulas for generative modeling

U Köthe - arXiv preprint arXiv:2308.02652, 2023 - arxiv.org
Change-of-variables (CoV) formulas allow to reduce complicated probability densities to
simpler ones by a learned transformation with tractable Jacobian determinant. They are thus …

Predicting extreme events in a data-driven model of turbulent shear flow using an atlas of charts

AJ Fox, C Ricardo Constante-Amores, MD Graham - Physical Review Fluids, 2023 - APS
Dynamical systems with extreme events are difficult to capture with data-driven modeling
due to the relative scarcity of data within extreme events compared to the typical dynamics of …

Continuous generative neural networks

GS Alberti, M Santacesaria, S Sciutto - arXiv preprint arXiv:2205.14627, 2022 - arxiv.org
In this work, we present and study Continuous Generative Neural Networks (CGNNs),
namely, generative models in the continuous setting: the output of a CGNN belongs to an …

State representation learning using an unbalanced atlas

L Meng, M Goodwin, A Yazidi, P Engelstad - arXiv preprint arXiv …, 2023 - arxiv.org
The manifold hypothesis posits that high-dimensional data often lies on a lower-dimensional
manifold and that utilizing this manifold as the target space yields more efficient …

Continuous Generative Neural Networks: A Wavelet-Based Architecture in Function Spaces

GS Alberti, M Santacesaria, S Sciutto - … Functional Analysis and …, 2024 - Taylor & Francis
In this work, we present and study Continuous Generative Neural Networks (CGNNs),
namely, generative models in the continuous setting: the output of a CGNN belongs to an …

Maximum Manifold Capacity Representations in State Representation Learning

L Meng, M Goodwin, A Yazidi, P Engelstad - arXiv preprint arXiv …, 2024 - arxiv.org
The expanding research on manifold-based self-supervised learning (SSL) builds on the
manifold hypothesis, which suggests that the inherent complexity of high-dimensional data …

Manifold Learning and Sparsity Priors for Inverse Problems

S Sciutto - 2024 - tesidottorato.depositolegale.it
In this thesis we investigate two distinct regularizing approaches for solving inverse
problems. The first approach involves assuming that the unknown belongs to a manifold …

Low-rank Tensor Steered Variational Autoencoder for Incomplete Multi-View Clustering

Z Wang - CS582 ML for bioinformatics workshop - openreview.net
Multi-view or multi-modal learning, in theory, should enhance clustering results by
leveraging information from other modalities. However, it is commonly observed that …

[PDF][PDF] Learning a Regularizer by Approximating the Patch Manifold

GS Alberti, J Hertrich - giovannisalberti.github.io
Background We are given data points x1,..., xN∈ Rn and assume that the elements of the
datasets are located on an embedded d-dimensional submanifold M⊆ Rn with d≪ n, which …