Search Results for author: Christian Bartelt

Found 10 papers, 4 papers with code

DSEG-LIME -- Improving Image Explanation by Hierarchical Data-Driven Segmentation

no code implementations12 Mar 2024 Patrick Knab, Sascha Marton, Christian Bartelt

Explainable Artificial Intelligence is critical in unraveling decision-making processes in complex machine learning models.

Decision Making Explainable artificial intelligence +3

A Mechanistic Analysis of a Transformer Trained on a Symbolic Multi-Step Reasoning Task

no code implementations19 Feb 2024 Jannik Brinkmann, Abhay Sheshadri, Victor Levoso, Paul Swoboda, Christian Bartelt

We anticipate that the motifs we identified in our synthetic setting can provide valuable insights into the broader operating principles of transformers and thus provide a basis for understanding more complex models.

GRANDE: Gradient-Based Decision Tree Ensembles for Tabular Data

2 code implementations29 Sep 2023 Sascha Marton, Stefan Lüdtke, Christian Bartelt, Heiner Stuckenschmidt

Our method combines axis-aligned splits, which is a useful inductive bias for tabular data, with the flexibility of gradient-based optimization.

A Multidimensional Analysis of Social Biases in Vision Transformers

no code implementations ICCV 2023 Jannik Brinkmann, Paul Swoboda, Christian Bartelt

Therefore, we measure the impact of training data, model architecture, and training objectives on social biases in the learned representations of ViTs.

counterfactual Fairness

Planning Landmark Based Goal Recognition Revisited: Does Using Initial State Landmarks Make Sense?

no code implementations27 Jun 2023 Nils Wilken, Lea Cohausz, Christian Bartelt, Heiner Stuckenschmidt

In this paper, we show that it does not provide any benefit to use landmarks that are part of the initial state in a planning landmark based goal recognition approach.

Intrusion Detection

GradTree: Learning Axis-Aligned Decision Trees with Gradient Descent

1 code implementation5 May 2023 Sascha Marton, Stefan Lüdtke, Christian Bartelt, Heiner Stuckenschmidt

Decision Trees (DTs) are commonly used for many machine learning tasks due to their high degree of interpretability.

Binary Classification

Leveraging Planning Landmarks for Hybrid Online Goal Recognition

no code implementations25 Jan 2023 Nils Wilken, Lea Cohausz, Johannes Schaum, Stefan Lüdtke, Christian Bartelt, Heiner Stuckenschmidt

Furthermore, we show that the utilized planning landmark based approach, which was so far only evaluated on artificial benchmark domains, achieves also good recognition performance when applied to a real-world cooking scenario.

Intrusion Detection

Explaining Neural Networks without Access to Training Data

1 code implementation10 Jun 2022 Sascha Marton, Stefan Lüdtke, Christian Bartelt, Andrej Tschalzev, Heiner Stuckenschmidt

We consider generating explanations for neural networks in cases where the network's training data is not accessible, for instance due to privacy or safety issues.

Exchangeability-Aware Sum-Product Networks

1 code implementation11 Oct 2021 Stefan Lüdtke, Christian Bartelt, Heiner Stuckenschmidt

On the other hand, mixtures of exchangeable variable models (MEVMs) are a class of tractable probabilistic models that make use of exchangeability of discrete random variables to render inference tractable.

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