Search Results for author: Christian Wirth

Found 10 papers, 1 papers with code

Informed Spectral Normalized Gaussian Processes for Trajectory Prediction

no code implementations18 Mar 2024 Christian Schlauch, Christian Wirth, Nadja Klein

Previous work has shown that using such informative priors to regularize probabilistic deep learning (DL) models increases their performance and data-efficiency.

Autonomous Driving Continual Learning +4

Explainable Bayesian Optimization

1 code implementation24 Jan 2024 Tanmay Chakraborty, Christin Seifert, Christian Wirth

In industry, Bayesian optimization (BO) is widely applied in the human-AI collaborative parameter tuning of cyber-physical systems.

Bayesian Optimization Hyperparameter Optimization +1

Overcoming the Limitations of Localization Uncertainty: Efficient & Exact Non-Linear Post-Processing and Calibration

no code implementations15 Jun 2023 Moussa Kassem Sbeyti, Michelle Karg, Christian Wirth, Azarm Nowzad, Sahin Albayrak

We overcome these limitations by: (1) implementing loss attenuation in EfficientDet, and proposing two deterministic methods for the exact and fast propagation of the output distribution, (2) demonstrating on the KITTI and BDD100K datasets that the predicted uncertainty is miscalibrated, and adapting two calibration methods to the localization task, and (3) investigating the correlation between aleatoric uncertainty and task-relevant error sources.

Informed Priors for Knowledge Integration in Trajectory Prediction

no code implementations1 Nov 2022 Christian Schlauch, Nadja Klein, Christian Wirth

We show that our method outperforms both non-informed and informed learning methods, that are often used in the literature.

Autonomous Driving Continual Learning +1

Efficient Utility Function Learning for Multi-Objective Parameter Optimization with Prior Knowledge

no code implementations22 Aug 2022 Farha A. Khan, Jörg P. Dietrich, Christian Wirth

However, result elicitation in real world problems is often based on implicit and explicit expert knowledge, making it difficult to define a utility function, whereas interactive learning or post elicitation requires repeated and expensive expert involvement.

Enabling Verification of Deep Neural Networks in Perception Tasks Using Fuzzy Logic and Concept Embeddings

no code implementations3 Jan 2022 Gesina Schwalbe, Christian Wirth, Ute Schmid

In this work, we present a simple, yet effective, approach to verify that a CNN complies with symbolic predicate logic rules which relate visual concepts.

Explainable artificial intelligence

Preference-Based Monte Carlo Tree Search

no code implementations17 Jul 2018 Tobias Joppen, Christian Wirth, Johannes Fürnkranz

To deal with such cases, the experimenter has to supply an additional numeric feedback signal in the form of a heuristic, which intrinsically guides the agent.

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