Search Results for author: Sebastian Reich

Found 10 papers, 3 papers with code

Stable generative modeling using diffusion maps

no code implementations9 Jan 2024 Georg Gottwald, Fengyi Li, Youssef Marzouk, Sebastian Reich

Diffusion maps are used to approximate the drift term from the available training samples, which is then implemented in a discrete-time Langevin sampler to generate new samples.

Sampling via Gradient Flows in the Space of Probability Measures

no code implementations5 Oct 2023 Yifan Chen, Daniel Zhengyu Huang, Jiaoyang Huang, Sebastian Reich, Andrew M Stuart

Our third contribution is to study, and develop efficient algorithms based on Gaussian approximations of the gradient flows; this leads to an alternative to particle methods.

Variational Inference

Affine Invariant Ensemble Transform Methods to Improve Predictive Uncertainty in ReLU Networks

no code implementations9 Sep 2023 Diksha Bhandari, Jakiw Pidstrigach, Sebastian Reich

We consider the problem of performing Bayesian inference for logistic regression using appropriate extensions of the ensemble Kalman filter.

Bayesian Inference regression

Infinite-Dimensional Diffusion Models

no code implementations20 Feb 2023 Jakiw Pidstrigach, Youssef Marzouk, Sebastian Reich, Sven Wang

For image distributions, these guidelines are in line with the canonical choices currently made for diffusion models.

Time Series

Combining machine learning and data assimilation to forecast dynamical systems from noisy partial observations

no code implementations8 Aug 2021 Georg A. Gottwald, Sebastian Reich

We present a supervised learning method to learn the propagator map of a dynamical system from partial and noisy observations.

Learning effective stochastic differential equations from microscopic simulations: linking stochastic numerics to deep learning

2 code implementations10 Jun 2021 Felix Dietrich, Alexei Makeev, George Kevrekidis, Nikolaos Evangelou, Tom Bertalan, Sebastian Reich, Ioannis G. Kevrekidis

We identify effective stochastic differential equations (SDE) for coarse observables of fine-grained particle- or agent-based simulations; these SDE then provide useful coarse surrogate models of the fine scale dynamics.

Numerical Integration

A Mathematical Model of Local and Global Attention in Natural Scene Viewing

1 code implementation9 Apr 2020 Noa Malem-Shinitski, Manfred Opper, Sebastian Reich, Lisa Schwetlick, Stefan A. Seelig, Ralf Engbert

Thus, the main contribution of our modeling approach is two--fold; first, we propose a new model for saccade generation in scene viewing.

Neurons and Cognition

Cannot find the paper you are looking for? You can Submit a new open access paper.