1 code implementation • 13 Mar 2024 • Tim Rensmeyer, Oliver Niggemann
Achieving robust uncertainty quantification for deep neural networks represents an important requirement in many real-world applications of deep learning such as medical imaging where it is necessary to assess the reliability of a neural network's prediction.
no code implementations • 18 Dec 2023 • Willi Grossmann, Sebastian Eilermann, Tim Rensmeyer, Artur Liebert, Michael Hohmann, Christian Wittke, Oliver Niggemann
In this way, the most complex physical relationships can be considered and quickly described.
no code implementations • 27 Nov 2023 • Henrik S. Steude, Lukas Moddemann, Alexander Diedrich, Jonas Ehrhardt, Oliver Niggemann
In Cyber-Physical Systems (CPS) research, anomaly detection (detecting abnormal behavior) and diagnosis (identifying the underlying root cause) are often treated as distinct, isolated tasks.
no code implementations • 6 Nov 2023 • Christoph Petroll, Sebastian Eilermann, Philipp Hoefer, Oliver Niggemann
For a neural network the functionalities are translated in conditions to a certain geometry.
no code implementations • 6 Nov 2023 • Lukas Moddemann, Henrik Sebastian Steude, Alexander Diedrich, Oliver Niggemann
Consistency-based diagnosis is an established approach to diagnose technical applications, but suffers from significant modeling efforts, especially for dynamic multi-modal time series.
no code implementations • 21 Aug 2023 • Jan-Philipp Roche, Oliver Niggemann, Jens Friebe
In this paper, a new approach to reconstruct missing variables in a set of time series is presented.
no code implementations • 14 Aug 2023 • Jan Lukas Augustin, Oliver Niggemann
Traditional model-based diagnosis relies on constructing explicit system models, a process that can be laborious and expertise-demanding.
no code implementations • 13 Jun 2023 • Alexander Windmann, Henrik Steude, Oliver Niggemann
Deep learning (DL) models have seen increased attention for time series forecasting, yet the application on cyber-physical systems (CPS) is hindered by the lacking robustness of these methods.
no code implementations • 25 May 2023 • Maria Krantz, Oliver Niggemann
Finally, we test this algorithm on a model of a rotary indexing machine, demonstrating its effectiveness in identifying faults and their root causes.
no code implementations • 3 May 2023 • Daniel C. Hinck, Jonas J. Schöttler, Maria Krantz, Katharina-Sophie Isleif, Oliver Niggemann
With regard to the technical deployment, possibilities are considered to address different sensors and to send signals out as resiliently as possible.
no code implementations • 5 Apr 2023 • Tim Rensmeyer, Benjamin Craig, Denis Kramer, Oliver Niggemann
Even though Bayesian neural networks offer a promising framework for modeling uncertainty, active learning and incorporating prior physical knowledge, few applications of them can be found in the context of interatomic force modeling.
no code implementations • 9 Feb 2023 • Philipp Rosenthal, Niels Demke, Frank Mantwill, Oliver Niggemann
In product design, a decomposition of the overall product function into a set of smaller, interacting functions is usually considered a crucial first step for any computer-supported design tool.
no code implementations • 20 Sep 2022 • Maria Krantz, Alexander Windmann, Rene Heesch, Lukas Moddemann, Oliver Niggemann
A promising approach to deal with this complexity is the concept of causality.
no code implementations • 19 Jan 2022 • Philipp Rosenthal, Oliver Niggemann
Early mappings of these concepts to AI solutions are sketched and verified using design examples.
no code implementations • 31 Dec 2021 • Aljosha Köcher, Rene Heesch, Niklas Widulle, Anna Nordhausen, Julian Putzke, Alexander Windmann, Oliver Niggemann
Manufacturing companies face challenges when it comes to quickly adapting their production control to fluctuating demands or changing requirements.
1 code implementation • 28 Nov 2021 • Henrik S. Steude, Alexander Windmann, Oliver Niggemann
In Cyber-Physical Systems (CPS), ML can for example be used to optimize systems, to detect anomalies or to identify root causes of system failures.
no code implementations • 18 May 2021 • Kaja Balzereit, Oliver Niggemann
Instead, AI-based approaches are needed which leverage on a model of the non-faulty system and which search for a set of reconfiguration operations which will establish a valid behavior again.
no code implementations • 29 Oct 2020 • Nemanja Hranisavljevic, Oliver Niggemann, Alexander Maier
Performing anomaly detection in hybrid systems is a challenging task since it requires analysis of timing behavior and mutual dependencies of both discrete and continuous signals.
no code implementations • 29 Oct 2020 • Benedikt Eiteneuer, Oliver Niggemann
Anomaly detection is the task of detecting data which differs from the normal behaviour of a system in a given context.
no code implementations • 28 Oct 2020 • Benedikt Eiteneuer, Nemanja Hranisavljevic, Oliver Niggemann
In this work, we focus on the nonlinear autoencoder (AE) as a DR/AD approach.
no code implementations • 27 Oct 2020 • Oliver Niggemann, Alexander Diedrich, Christian Kuehnert, Erik Pfannstiel, Joshua Schraven
Services for Cyber-Physical Systems based on Artificial Intelligence and Machine Learning require a virtual representation of the physical.