Abstract NIFTy,“Numerical Information Field Theory,” is a software framework designed to
ease the development and implementation of field inference algorithms. Field equations are …

New telescopes like the Square Kilometre Array (SKA) will push into a new sensitivity
regime and expose systematics, such as direction-dependent effects, that could previously …

Matrix determinants play an important role in data analysis, in particular when Gaussian
processes are involved. Due to currently exploding data volumes, linear operations …

Signal inference problems with non-Gaussian posteriors can be hard to tackle. Through
using the concept of Gibbs free energy these posteriors are rephrased as Gaussian …

The inference of correlated signal fields with unknown correlation structures is of high
scientific and technological relevance, but poses significant conceptual and numerical …

Abstract (EN). This thesis focuses on the development and application of Bayesian inference
techniques for early-Universe signals and on the advancement of mathematical tools for …

Our solar system is part of the Milky Way, a spiral galaxy, illustrated in Fig. 1. 1. The shape of
spiral galaxies is dominated by a disk, which typically possesses several spiral arms and …

Diese Dissertation befasst sich mit der Rekonstruktion des Magnetfeldes der Milchstraße
(GMF für Galaktisches Magnetfeld). Eine genaue Beschreibung des Magnetfeldes ist für …