collaborators

18 papers

cs.LG2026

Physics-Constrained Fine-Tuning of Flow-Matching Models for Generation and Inverse Problems

Jan Tauberschmidt, Sophie Fellenz, Sebastian J. Vollmer +1

We present a framework for fine-tuning flow-matching generative models to enforce physical constraints and solve inverse problems in scientific systems. Starting from a model train…

cs.LG2026

Skipping the Zeros in Diffusion Models for Sparse Data Generation

Phil Sidney Ostheimer, Mayank Nagda, Andriy Balinskyy +6

Diffusion models (DMs) excel on dense continuous data, but are not designed for sparse continuous data. They do not model exact zeros that represent the deliberate absence of a sig…

cs.LG2026

Population Risk Bounds for Kolmogorov-Arnold Networks Trained by DP-SGD with Correlated Noise

Puyu Wang, Jan Schuchardt, Nikita Kalinin +4

We establish the first population risk bounds for Kolmogorov-Arnold Networks (KANs) trained by mini-batch SGD with gradient clipping, covering non-private SGD as well as differenti…

cs.LG2026

Sparse Data Diffusion for Scientific Simulations in Biology and Physics

Phil Ostheimer, Mayank Nagda, Andriy Balinskyy +5

Sparse data is fundamental to scientific simulations in biology and physics, from single-cell gene expression to particle calorimetry, where exact zeros encode physical absence rat…

cs.CV2026

Reimagining Anomalies: What If Anomalies Were Normal?

Philipp Liznerski, Saurabh Varshneya, Ece Calikus +5

Deep learning-based methods have achieved a breakthrough in image anomaly detection, but their complexity introduces a considerable challenge to understanding why an instance is pr…

cs.LG2025

Formally Exploring Time-Series Anomaly Detection Evaluation Metrics

Dennis Wagner, Arjun Nair, Billy Joe Franks +24

Undetected anomalies in time series can trigger catastrophic failures in safety-critical systems, such as chemical plant explosions or power grid outages. Although many detection m…