Geometric deep learning and equivariant neural networks

JE Gerken, J Aronsson, O Carlsson, H Linander… - Artificial Intelligence …, 2023 - Springer
We survey the mathematical foundations of geometric deep learning, focusing on group
equivariant and gauge equivariant neural networks. We develop gauge equivariant …

Unified fourier-based kernel and nonlinearity design for equivariant networks on homogeneous spaces

Y Xu, J Lei, E Dobriban… - … Conference on Machine …, 2022 - proceedings.mlr.press
We introduce a unified framework for group equivariant networks on homogeneous spaces
derived from a Fourier perspective. We consider tensor-valued feature fields, before and …

Equivariance versus augmentation for spherical images

J Gerken, O Carlsson, H Linander… - International …, 2022 - proceedings.mlr.press
We analyze the role of rotational equivariance in convolutional neural networks (CNNs)
applied to spherical images. We compare the performance of the group equivariant …

Direction of arrival estimation of sound sources using icosahedral CNNs

D Diaz-Guerra, A Miguel… - IEEE/ACM Transactions …, 2022 - ieeexplore.ieee.org
In this paper, we present a new model for Direction of Arrival (DOA) estimation of sound
sources based on an Icosahedral Convolutional Neural Network (CNN) applied over SRP …

Heal-swin: A vision transformer on the sphere

O Carlsson, JE Gerken, H Linander… - Proceedings of the …, 2024 - openaccess.thecvf.com
High-resolution wide-angle fisheye images are becoming more and more important for
robotics applications such as autonomous driving. However using ordinary convolutional …

In what ways are deep neural networks invariant and how should we measure this?

H Kvinge, T Emerson, G Jorgenson… - Advances in …, 2022 - proceedings.neurips.cc
It is often said that a deep learning model is``invariant''to some specific type of
transformation. However, what is meant by this statement strongly depends on the context in …

Scattering networks on the sphere for scalable and rotationally equivariant spherical CNNs

JD McEwen, CGR Wallis, AN Mavor-Parker - arXiv preprint arXiv …, 2021 - arxiv.org
Convolutional neural networks (CNNs) constructed natively on the sphere have been
developed recently and shown to be highly effective for the analysis of spherical data. While …

[HTML][HTML] Differentiable and accelerated spherical harmonic and Wigner transforms

MA Price, JD McEwen - Journal of Computational Physics, 2024 - Elsevier
Many areas of science and engineering encounter data defined on spherical manifolds.
Modelling and analysis of spherical data often necessitates spherical harmonic transforms …

Scaling spherical cnns

C Esteves, JJ Slotine, A Makadia - arXiv preprint arXiv:2306.05420, 2023 - arxiv.org
Spherical CNNs generalize CNNs to functions on the sphere, by using spherical
convolutions as the main linear operation. The most accurate and efficient way to compute …

Pdo-s3dcnns: Partial differential operator based steerable 3d cnns

Z Shen, T Hong, Q She, J Ma… - … Conference on Machine …, 2022 - proceedings.mlr.press
Steerable models can provide very general and flexible equivariance by formulating
equivariance requirements in the language of representation theory and feature fields …