Search Results for author: Simon Buchholz

Found 9 papers, 4 papers with code

Learning Linear Causal Representations from Interventions under General Nonlinear Mixing

no code implementations NeurIPS 2023 Simon Buchholz, Goutham Rajendran, Elan Rosenfeld, Bryon Aragam, Bernhard Schölkopf, Pradeep Ravikumar

We study the problem of learning causal representations from unknown, latent interventions in a general setting, where the latent distribution is Gaussian but the mixing function is completely general.

counterfactual

Flow Matching for Scalable Simulation-Based Inference

1 code implementation NeurIPS 2023 Maximilian Dax, Jonas Wildberger, Simon Buchholz, Stephen R. Green, Jakob H. Macke, Bernhard Schölkopf

Neural posterior estimation methods based on discrete normalizing flows have become established tools for simulation-based inference (SBI), but scaling them to high-dimensional problems can be challenging.

Causal Component Analysis

1 code implementation NeurIPS 2023 Liang Wendong, Armin Kekić, Julius von Kügelgen, Simon Buchholz, Michel Besserve, Luigi Gresele, Bernhard Schölkopf

As a corollary, this interventional perspective also leads to new identifiability results for nonlinear ICA -- a special case of CauCA with an empty graph -- requiring strictly fewer datasets than previous results.

Representation Learning

Multi-Armed Bandits and Quantum Channel Oracles

no code implementations20 Jan 2023 Simon Buchholz, Jonas M. Kübler, Bernhard Schölkopf

Here we introduce further bandit models where we only have limited access to the randomness of the rewards, but we can still query the arms in superposition.

Multi-Armed Bandits reinforcement-learning +1

Function Classes for Identifiable Nonlinear Independent Component Analysis

no code implementations12 Aug 2022 Simon Buchholz, Michel Besserve, Bernhard Schölkopf

Several families of spurious solutions fitting perfectly the data, but that do not correspond to the ground truth factors can be constructed in generic settings.

AutoML Two-Sample Test

3 code implementations17 Jun 2022 Jonas M. Kübler, Vincent Stimper, Simon Buchholz, Krikamol Muandet, Bernhard Schölkopf

Two-sample tests are important in statistics and machine learning, both as tools for scientific discovery as well as to detect distribution shifts.

AutoML Two-sample testing +1

The Inductive Bias of Quantum Kernels

1 code implementation NeurIPS 2021 Jonas M. Kübler, Simon Buchholz, Bernhard Schölkopf

Quantum computers offer the possibility to efficiently compute inner products of exponentially large density operators that are classically hard to compute.

Inductive Bias Quantum Machine Learning

Assaying Large-scale Testing Models to Interpret COVID-19 Case Numbers

no code implementations3 Dec 2020 Michel Besserve, Simon Buchholz, Bernhard Schölkopf

Large-scale testing is considered key to assess the state of the current COVID-19 pandemic.

Applications Populations and Evolution

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