activity
20242026
most citedMulti-Source and Test-Time Domain Adaptation on Multivariate Signals using Spatio-Temporal Monge Alignment

1 citations · 1 across the 8 of their papers we have counts for

collaborators

9 papers

stat.ML2026

Multi-Task Learning of Conditional Mean Operators: applications to dynamical systems and uncertainty quantification

Sami Chemlal, Thibaut Germain, Rémi Flamary +2

Estimating conditional statistics and learning representations of a population of conditional distributions are central problems in many data-driven applications, including uncerta…

stat.ML2026

Geometric Dictionary Learning of Dynamical Systems with Optimal Transport

Thibaut Germain, Sami Chemlal, Rémi Flamary +2

Learning dynamical systems through operator-theoretic representations provides a powerful framework for analyzing complex dynamics, as spectral quantities such as eigenvalues and i…

math.DS2026

Toeplitz Based Spectral Methods for Data-driven Dynamical Systems

Vladimir R. Kostic, Karim Lounici, Massimiliano Pontil

We introduce a Toeplitz-based framework for data-driven spectral estimation of linear evolution operators in dynamical systems. Focusing on transfer and Koopman operators from equi…

cs.LG2026

VertCoHiRF: Decentralized Vertical Clustering Beyond k-means

Bruno Belucci, Karim Lounici, Vladimir R. Kostic +1

Vertical Federated Learning (VFL) enables collaborative analysis across parties holding complementary feature views of the same samples, yet existing approaches are largely restric…

cs.LG2026

kooplearn: A Scikit-Learn Compatible Library of Algorithms for Evolution Operator Learning

Giacomo Turri, Grégoire Pacreau, Giacomo Meanti +8

kooplearn is a machine-learning library that implements linear, kernel, and deep-learning estimators of dynamical operators and their spectral decompositions. kooplearn can model b…

cs.LG2025

Toward Scalable and Valid Conditional Independence Testing with Spectral Representations

Alek Fröhlich, Vladimir R. Kostic, Karim Lounici +3

Conditional independence (CI) is central to causal inference, feature selection, and graphical modeling, yet it is untestable in many settings without additional assumptions. Exist…

stat.ML2025

Outcome-Aware Spectral Feature Learning for Instrumental Variable Regression

Dimitri Meunier, Jakub Wornbard, Vladimir R. Kostic +5

We address the problem of causal effect estimation in the presence of hidden confounders using nonparametric instrumental variable (IV) regression. An established approach is to us…

stat.ML2025

A Spectral-Grassmann Wasserstein metric for operator representations of dynamical systems

Thibaut Germain, Rémi Flamary, Vladimir R. Kostic +1

The geometry of dynamical systems estimated from trajectory data is a major challenge for machine learning applications. Koopman and transfer operators provide a linear representat…

cs.LG2024★ 1 cited

Multi-Source and Test-Time Domain Adaptation on Multivariate Signals using Spatio-Temporal Monge Alignment

Théo Gnassounou, Antoine Collas, Rémi Flamary +2

Machine learning applications on signals such as computer vision or biomedical data often face significant challenges due to the variability that exists across hardware devices or…