Search Results for author: Thomas Liebig

Found 15 papers, 5 papers with code

The Dynamics of a Bicycle on a Pump Track -- First Results on Modeling and Optimal Control

no code implementations13 Nov 2023 Julian Golembiewski, Marcus Schmidt, Benedikt Terschluse, Thomas Jaitner, Thomas Liebig, Timm Faulwasser

We investigate the dynamics of a bicycle on an uneven mountain bike track split into straight sections with small jumps (kickers) and banked corners.

Distilling Influences to Mitigate Prediction Churn in Graph Neural Networks

no code implementations2 Oct 2023 Andreas Roth, Thomas Liebig

Our work explores this phenomenon in graph neural networks by investigating differences between models differing only in their initializations in their utilized features for predictions.

Knowledge Distillation Node Classification

Rank Collapse Causes Over-Smoothing and Over-Correlation in Graph Neural Networks

1 code implementation31 Aug 2023 Andreas Roth, Thomas Liebig

Our study reveals new theoretical insights into over-smoothing and feature over-correlation in deep graph neural networks.

Curvature-based Pooling within Graph Neural Networks

1 code implementation31 Aug 2023 Cedric Sanders, Andreas Roth, Thomas Liebig

CurvPool exploits the notion of curvature of a graph to adaptively identify structures responsible for both over-smoothing and over-squashing.

Graph Classification

Distributed LSTM-Learning from Differentially Private Label Proportions

no code implementations15 Jan 2023 Timon Sachweh, Daniel Boiar, Thomas Liebig

Data privacy and decentralised data collection has become more and more popular in recent years.

LOSDD: Leave-Out Support Vector Data Description for Outlier Detection

no code implementations27 Dec 2022 Daniel Boiar, Thomas Liebig, Erich Schubert

Support Vector Machines have been successfully used for one-class classification (OCSVM, SVDD) when trained on clean data, but they work much worse on dirty data: outliers present in the training data tend to become support vectors, and are hence considered "normal".

One-Class Classification Outlier Detection

Forecasting Unobserved Node States with spatio-temporal Graph Neural Networks

no code implementations21 Nov 2022 Andreas Roth, Thomas Liebig

Our framework can be combined with any spatio-temporal Graph Neural Network, that exploits spatio-temporal correlations with surrounding observed locations by using the network's graph structure.

Inductive Bias

Certified Data Removal in Sum-Product Networks

no code implementations4 Oct 2022 Alexander Becker, Thomas Liebig

Data protection regulations like the GDPR or the California Consumer Privacy Act give users more control over the data that is collected about them.

Evaluating Machine Unlearning via Epistemic Uncertainty

1 code implementation23 Aug 2022 Alexander Becker, Thomas Liebig

There has been a growing interest in Machine Unlearning recently, primarily due to legal requirements such as the General Data Protection Regulation (GDPR) and the California Consumer Privacy Act.

Machine Unlearning

Transforming PageRank into an Infinite-Depth Graph Neural Network

1 code implementation1 Jul 2022 Andreas Roth, Thomas Liebig

Popular graph neural networks are shallow models, despite the success of very deep architectures in other application domains of deep learning.

Graph Classification

Conditional Sum-Product Networks: Imposing Structure on Deep Probabilistic Architectures

no code implementations21 May 2019 Xiaoting Shao, Alejandro Molina, Antonio Vergari, Karl Stelzner, Robert Peharz, Thomas Liebig, Kristian Kersting

In contrast, deep probabilistic models such as sum-product networks (SPNs) capture joint distributions in a tractable fashion, but still lack the expressive power of intractable models based on deep neural networks.

Image Classification

Boosting Vehicle-to-cloud Communication by Machine Learning-enabled Context Prediction

no code implementations23 Apr 2019 Benjamin Sliwa, Robert Falkenberg, Thomas Liebig, Nico Piatkowski, Christian Wietfeld

The exploitation of vehicles as mobile sensors acts as a catalyst for novel crowdsensing-based applications such as intelligent traffic control and distributed weather forecast.

Networking and Internet Architecture

System-of-Systems Modeling, Analysis and Optimization of Hybrid Vehicular Traffic

no code implementations10 Jan 2019 Benjamin Sliwa, Thomas Liebig, Tim Vranken, Michael Schreckenberg, Christian Wietfeld

While the development of fully autonomous vehicles is one of the major research fields in the Intelligent Transportation Systems (ITSs) domain, the upcoming longterm transition period - the hybrid vehicular traffic - is often neglected.

Networking and Internet Architecture

Machine learning based context-predictive car-to-cloud communication using multi-layer connectivity maps for upcoming 5G networks

no code implementations17 May 2018 Benjamin Sliwa, Thomas Liebig, Robert Falkenberg, Johannes Pillmann, Christian Wietfeld

While cars were only considered as means of personal transportation for a long time, they are currently transcending to mobile sensor nodes that gather highly up-to-date information for crowdsensing-enabled big data services in a smart city context.

Networking and Internet Architecture

Efficient Machine-type Communication using Multi-metric Context-awareness for Cars used as Mobile Sensors in Upcoming 5G Networks

1 code implementation10 Jan 2018 Benjamin Sliwa, Thomas Liebig, Robert Falkenberg, Johannes Pillmann, Christian Wietfeld

Upcoming 5G-based communication networks will be confronted with huge increases in the amount of transmitted sensor data related to massive deployments of static and mobile Internet of Things (IoT) systems.

Networking and Internet Architecture

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