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Simon Weber

8 accepted papers

2026

From Pairwise Affinities to Functional Correspondences: Rethinking Attention

ICML 2026poster

Learning mappings between infinite-dimensional function spaces, or operator learning, is essential for many machine learning applications. Although transformer-based operators are popular, they often rely on token-wise attention. These methods treat continuous fields as discrete tokens and usually i…

Cited by 0SourceScholar
2025

A Culturally-diverse Multilingual Multimodal Video Benchmark & Model

EMNLP 2025

Large multimodal models (LMMs) have recently gained attention due to their effectiveness to understand and generate descriptions of visual content. Most existing LMMs are in English language. While few recent works explore multilingual image LMMs, to the best of our knowledge, moving beyond the Engl

Cited by 0SourcePDFScholar
2025

Finsler Multi-Dimensional Scaling: Manifold Learning for Asymmetric Dimensionality Reduction and Embedding

CVPR 2025poster

Dimensionality reduction is a fundamental task that aims to simplify complex data by reducing its feature dimensionality while preserving essential patterns, with core applications in data analysis and visualisation. To preserve the underlying data structure, multi-dimensional scaling (MDS) methods…

2024

Finsler-Laplace-Beltrami Operators with Application to Shape Analysis

CVPR 2024poster

The Laplace-Beltrami operator (LBO) emerges from studying manifolds equipped with a Riemannian metric. It is often called the swiss army knife of geometry processing as it allows to capture intrinsic shape information and gives rise to heat diffusion geodesic distances and a multitude of shape descr…

Cited by 8SourcePDFScholar
2024

Flattening the Parent Bias: Hierarchical Semantic Segmentation in the Poincare Ball

CVPR 2024poster

Hierarchy is a natural representation of semantic taxonomies including the ones routinely used in image segmentation. Indeed recent work on semantic segmentation reports improved accuracy from supervised training leveraging hierarchical label structures. Encouraged by these results we revisit the fu…

2023

Power Bundle Adjustment for Large-Scale 3D Reconstruction

CVPR 2023poster

We introduce Power Bundle Adjustment as an expansion type algorithm for solving large-scale bundle adjustment problems. It is based on the power series expansion of the inverse Schur complement and constitutes a new family of solvers that we call inverse expansion methods. We theoretically justify t…

2023

Training Fully Connected Neural Networks is $\exists\mathbb{R}$-Complete

NeurIPS 2023poster

We consider the algorithmic problem of finding the optimal weights and biases for a two-layer fully connected neural network to fit a given set of data points, also known as empirical risk minimization. We show that the problem is $\exists\mathbb{R}$-complete. This complexity class can be defined as…

Cited by 0SourcePDFScholar
2015

Motion safety for vessels: An approach based on Inevitable Collision States

IROS 2015poster

The improvement of collision avoidance for vessels in close range encounter situations is an important topic for maritime traffic safety. Typical approaches generate evasive trajectories or optimise the trajectories of all involved vessels. The idea of this work is to validate these trajectories rel…

Cited by 6SourceScholar