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Tess Smidt

14 accepted papers

2026

Asymptotically Fast Clebsch-Gordan Tensor Products with Vector Spherical Harmonics

ICML 2026poster

$E(3)$-equivariant neural networks have proven to be extremely effective in a wide range of 3D modeling tasks. A fundamental operation of such networks is the tensor product, which allows interaction between different feature types. Because this operation scales poorly, there has been considerable w…

Cited by 0SourceScholar
2026

PFT: Phonon Fine-tuning for Machine Learned Interatomic Potentials

ICML 2026poster

Many materials properties depend on higher-order derivatives of the potential energy surface, yet machine learned interatomic potentials (MLIPs) trained with a standard loss on energy, force, and stress errors can exhibit error in curvature, degrading the prediction of vibrational properties. We int…

Cited by 0SourceScholar
2026

To Augment or Not to Augment? Diagnosing Distributional Symmetry Breaking

ICLR 2026poster

Symmetry-aware methods for machine learning, such as data augmentation and equivariant architectures, encourage correct model behavior on all transformations (e.g. rotations or permutations) of the original dataset. These methods can impart improved generalization and sample efficiency, under the as…

Cited by 0SourceScholar
2025

The Price of Freedom: Exploring Expressivity and Runtime Tradeoffs in Equivariant Tensor Products

ICML 2025poster

$E(3)$-equivariant neural networks have demonstrated success across a wide range of 3D modelling tasks. A fundamental operation in these networks is the tensor product, which interacts two geometric features in an equivariant manner to create new features. Due to the high computational complexity of…

2024

A Recipe for Charge Density Prediction

NeurIPS 2024poster

In density functional theory, charge density is the core attribute of atomic systems from which all chemical properties can be derived. Machine learning methods are promising in significantly accelerating charge density prediction, yet existing approaches either lack accuracy or scalability. We prop…

Cited by 2SourcePDFScholar
2024

Discovering Symmetry Breaking in Physical Systems with Relaxed Group Convolution

ICML 2024poster

Modeling symmetry breaking is essential for understanding the fundamental changes in the behaviors and properties of physical systems, from microscopic particle interactions to macroscopic phenomena like fluid dynamics and cosmic structures. Thus, identifying sources of asymmetry is an important too…

Cited by 7SourcePDFScholar
2024

EquiformerV2: Improved Equivariant Transformer for Scaling to Higher-Degree Representations

ICLR 2024poster

Equivariant Transformers such as Equiformer have demonstrated the efficacy of applying Transformers to the domain of 3D atomistic systems. However, they are limited to small degrees of equivariant representations due to their computational complexity. In this paper, we investigate whether these arch…

2024

Symphony: Symmetry-Equivariant Point-Centered Spherical Harmonics for 3D Molecule Generation

ICLR 2024poster

We present Symphony, an $E(3)$ equivariant autoregressive generative model for 3D molecular geometries that iteratively builds a molecule from molecular fragments. Existing autoregressive models such as G-SchNet and G-SphereNet for molecules utilize rotationally invariant features to respect the 3D…

2023

A General Framework for Equivariant Neural Networks on Reductive Lie Groups

NeurIPS 2023poster

Reductive Lie Groups, such as the orthogonal groups, the Lorentz group, or the unitary groups, play essential roles across scientific fields as diverse as high energy physics, quantum mechanics, quantum chromodynamics, molecular dynamics, computer vision, and imaging. In this paper, we present a gen…

Cited by 9SourcePDFScholar
2023

Sign and Basis Invariant Networks for Spectral Graph Representation Learning

ICLR 2023top-25%

We introduce SignNet and BasisNet---new neural architectures that are invariant to two key symmetries displayed by eigenvectors: (i) sign flips, since if v is an eigenvector then so is -v; and (ii) more general basis symmetries, which occur in higher dimensional eigenspaces with infinitely many choi…

2022

Generative Coarse-Graining of Molecular Conformations

ICML 2022spotlight

Coarse-graining (CG) of molecular simulations simplifies the particle representation by grouping selected atoms into pseudo-beads and therefore drastically accelerates simulation. However, such CG procedure induces information losses, which makes accurate backmapping, i.e., restoring fine-grained (F…

2021

SE(3)-equivariant prediction of molecular wavefunctions and electronic densities

NeurIPS 2021poster

Machine learning has enabled the prediction of quantum chemical properties with high accuracy and efficiency, allowing to bypass computationally costly ab initio calculations. Instead of training on a fixed set of properties, more recent approaches attempt to learn the electronic wavefunction (or de…

Cited by 118SourcePDFScholar