Search Results for author: Michael Hecht

Found 6 papers, 2 papers with code

Ensuring Topological Data-Structure Preservation under Autoencoder Compression due to Latent Space Regularization in Gauss--Legendre nodes

1 code implementation15 Sep 2023 Chethan Krishnamurthy Ramanaik, Juan-Esteban Suarez Cardona, Anna Willmann, Pia Hanfeld, Nico Hoffmann, Michael Hecht

Revisiting this classic enables to prove that regularised autoencoders ensure a one-to-one re-embedding of the initial data manifold to its latent representation.

Polynomial-Model-Based Optimization for Blackbox Objectives

no code implementations1 Sep 2023 Janina Schreiber, Damar Wicaksono, Michael Hecht

For a wide range of applications the structure of systems like Neural Networks or complex simulations, is unknown and approximation is costly or even impossible.

Bayesian Optimization

Learning Partial Differential Equations by Spectral Approximates of General Sobolev Spaces

no code implementations12 Jan 2023 Juan-Esteban Suarez Cardona, Phil-Alexander Hofmann, Michael Hecht

In contrast to PINNs, the PSMs result in a convex optimisation problem for a vast class of PDEs, including all linear ones, in which case the PSM-approximate is efficiently computable due to the exponential convergence rate of the underlying variational gradient descent.

Replacing Automatic Differentiation by Sobolev Cubatures fastens Physics Informed Neural Nets and strengthens their Approximation Power

no code implementations23 Nov 2022 Juan Esteban Suarez Cardona, Michael Hecht

We present a novel class of approximations for variational losses, being applicable for the training of physics-informed neural nets (PINNs).

InFlow: Robust outlier detection utilizing Normalizing Flows

1 code implementation10 Jun 2021 Nishant Kumar, Pia Hanfeld, Michael Hecht, Michael Bussmann, Stefan Gumhold, Nico Hoffmann

Normalizing flows are prominent deep generative models that provide tractable probability distributions and efficient density estimation.

Density Estimation Outlier Detection +1

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