Search Results for author: Volker Roth

Found 23 papers, 5 papers with code

Truly Mesh-free Physics-Informed Neural Networks

no code implementations3 Jun 2022 Fabricio Arend Torres, Marcello Massimo Negri, Monika Nagy-Huber, Maxim Samarin, Volker Roth

This is achieved by reformulating the modeled fluid density as an unnormalized probability distribution from which we sample with dynamic Monte Carlo methods.

Learning Invariances with Generalised Input-Convex Neural Networks

no code implementations14 Apr 2022 Vitali Nesterov, Fabricio Arend Torres, Monika Nagy-Huber, Maxim Samarin, Volker Roth

These networks represent functions that are guaranteed to have connected level sets forming smooth manifolds on the input space.

3DMolNet: A Generative Network for Molecular Structures

no code implementations8 Oct 2020 Vitali Nesterov, Mario Wieser, Volker Roth

With the recent advances in machine learning for quantum chemistry, it is now possible to predict the chemical properties of compounds and to generate novel molecules.

Quantization Translation

On the Empirical Neural Tangent Kernel of Standard Finite-Width Convolutional Neural Network Architectures

no code implementations24 Jun 2020 Maxim Samarin, Volker Roth, David Belius

The Neural Tangent Kernel (NTK) is an important milestone in the ongoing effort to build a theory for deep learning.

Inverse Learning of Symmetries

1 code implementation NeurIPS 2020 Mario Wieser, Sonali Parbhoo, Aleksander Wieczorek, Volker Roth

Our approach is based on the deep information bottleneck in combination with a continuous mutual information regulariser.

Learning Extremal Representations with Deep Archetypal Analysis

1 code implementation3 Feb 2020 Sebastian Mathias Keller, Maxim Samarin, Fabricio Arend Torres, Mario Wieser, Volker Roth

The real-world applicability of the proposed method is demonstrated by exploring archetypes of female facial expressions while using multi-rater based emotion scores of these expressions as side information.

Band Gap

On the Difference Between the Information Bottleneck and the Deep Information Bottleneck

no code implementations31 Dec 2019 Aleksander Wieczorek, Volker Roth

The actual mutual information consists of the lower bound which is optimised in DVIB and cognate models in practice and of two terms measuring how much the former requirement $T-X-Y$ is violated.

Optimizing for Interpretability in Deep Neural Networks with Tree Regularization

no code implementations14 Aug 2019 Mike Wu, Sonali Parbhoo, Michael C. Hughes, Volker Roth, Finale Doshi-Velez

Moreover, for situations in which a single, global tree is a poor estimator, we introduce a regional tree regularizer that encourages the deep model to resemble a compact, axis-aligned decision tree in predefined, human-interpretable contexts.

Deep Archetypal Analysis

1 code implementation30 Jan 2019 Sebastian Mathias Keller, Maxim Samarin, Mario Wieser, Volker Roth

"Deep Archetypal Analysis" generates latent representations of high-dimensional datasets in terms of fractions of intuitively understandable basic entities called archetypes.

Representation Learning

Estimating Causal Effects With Partial Covariates For Clinical Interpretability

no code implementations26 Nov 2018 Sonali Parbhoo, Mario Wieser, Volker Roth

Estimating the causal effects of an intervention in the presence of confounding is a frequently occurring problem in applications such as medicine.

Causal Inference

Informed MCMC with Bayesian Neural Networks for Facial Image Analysis

no code implementations19 Nov 2018 Adam Kortylewski, Mario Wieser, Andreas Morel-Forster, Aleksander Wieczorek, Sonali Parbhoo, Volker Roth, Thomas Vetter

Computer vision tasks are difficult because of the large variability in the data that is induced by changes in light, background, partial occlusion as well as the varying pose, texture, and shape of objects.

Bayesian Inference

Cause-Effect Deep Information Bottleneck For Systematically Missing Covariates

no code implementations6 Jul 2018 Sonali Parbhoo, Mario Wieser, Aleksander Wieczorek, Volker Roth

Estimating the causal effects of an intervention from high-dimensional observational data is difficult due to the presence of confounding.

Causal Inference

Beyond Sparsity: Tree Regularization of Deep Models for Interpretability

2 code implementations16 Nov 2017 Mike Wu, Michael C. Hughes, Sonali Parbhoo, Maurizio Zazzi, Volker Roth, Finale Doshi-Velez

The lack of interpretability remains a key barrier to the adoption of deep models in many applications.

Time Series

Greedy Structure Learning of Hierarchical Compositional Models

no code implementations CVPR 2019 Adam Kortylewski, Aleksander Wieczorek, Mario Wieser, Clemens Blumer, Sonali Parbhoo, Andreas Morel-Forster, Volker Roth, Thomas Vetter

In this work, we consider the problem of learning a hierarchical generative model of an object from a set of images which show examples of the object in the presence of variable background clutter.

Transfer Learning

Causal Compression

no code implementations1 Nov 2016 Aleksander Wieczorek, Volker Roth

We propose a new method of discovering causal relationships in temporal data based on the notion of causal compression.

Time Series

Bayesian Markov Blanket Estimation

no code implementations6 Oct 2015 Dinu Kaufmann, Sonali Parbhoo, Aleksander Wieczorek, Sebastian Keller, David Adametz, Volker Roth

This paper considers a Bayesian view for estimating a sub-network in a Markov random field.

Probabilistic Clustering of Time-Evolving Distance Data

no code implementations14 Apr 2015 Julia E. Vogt, Marius Kloft, Stefan Stark, Sudhir S. Raman, Sandhya Prabhakaran, Volker Roth, Gunnar Rätsch

We present a novel probabilistic clustering model for objects that are represented via pairwise distances and observed at different time points.

Distance-Based Network Recovery under Feature Correlation

no code implementations NeurIPS 2014 David Adametz, Volker Roth

We present an inference method for Gaussian graphical models when only pairwise distances of n objects are observed.

Meta-Gaussian Information Bottleneck

no code implementations NeurIPS 2012 Melanie Rey, Volker Roth

We present a reformulation of the information bottleneck (IB) problem in terms of copula, using the equivalence between mutual information and negative copula entropy.

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