activity
20202025
most citedGRANDE: Gradient-Based Decision Tree Ensembles for Tabular Data

3 citations · 8 across the 19 of their papers we have counts for

collaborators

19 papers

cs.LG2025★ 1 cited

Which LIME should I trust? Concepts, Challenges, and Solutions

Patrick Knab, Sascha Marton, Udo Schlegel +1

As neural networks become dominant in essential systems, Explainable Artificial Intelligence (XAI) plays a crucial role in fostering trust and detecting potential misbehavior of op…

cs.LG2025

Unreflected Use of Tabular Data Repositories Can Undermine Research Quality

Andrej Tschalzev, Lennart Purucker, Stefan Lüdtke +3

Data repositories have accumulated a large number of tabular datasets from various domains. Machine Learning researchers are actively using these datasets to evaluate novel approac…

cs.LG2025

Disentangling Exploration of Large Language Models by Optimal Exploitation

Tim Grams, Patrick Betz, Sascha Marton +2

Exploration is a crucial skill for in-context reinforcement learning in unknown environments. However, it remains unclear if large language models can effectively explore a partial…

cs.AI2024

A*Net and NBFNet Learn Negative Patterns on Knowledge Graphs

Patrick Betz, Nathanael Stelzner, Christian Meilicke +2

In this technical report, we investigate the predictive performance differences of a rule-based approach and the GNN architectures NBFNet and A*Net with respect to knowledge graph…

cs.CV2024

DCBM: Data-Efficient Visual Concept Bottleneck Models

Katharina Prasse, Patrick Knab, Sascha Marton +2

Concept Bottleneck Models (CBMs) enhance the interpretability of neural networks by basing predictions on human-understandable concepts. However, current CBMs typically rely on con…

cs.LG2024

Interpreting Outliers in Time Series Data through Decoding Autoencoder

Patrick Knab, Sascha Marton, Christian Bartelt +1

Outlier detection is a crucial analytical tool in various fields. In critical systems like manufacturing, malfunctioning outlier detection can be costly and safety-critical. Theref…

cs.AI2024

Fact Probability Vector Based Goal Recognition

Nils Wilken, Lea Cohausz, Christian Bartelt +1

We present a new approach to goal recognition that involves comparing observed facts with their expected probabilities. These probabilities depend on a specified goal g and initial…

cs.LG2024

Mitigating Information Loss in Tree-Based Reinforcement Learning via Direct Optimization

Sascha Marton, Tim Grams, Florian Vogt +3

Reinforcement learning (RL) has seen significant success across various domains, but its adoption is often limited by the black-box nature of neural network policies, making them d…

cs.LG2024

A Data-Centric Perspective on Evaluating Machine Learning Models for Tabular Data

Andrej Tschalzev, Sascha Marton, Stefan Lüdtke +2

Tabular data is prevalent in real-world machine learning applications, and new models for supervised learning of tabular data are frequently proposed. Comparative studies assessing…

cs.LG2024

Enabling Mixed Effects Neural Networks for Diverse, Clustered Data Using Monte Carlo Methods

Andrej Tschalzev, Paul Nitschke, Lukas Kirchdorfer +3

Neural networks often assume independence among input data samples, disregarding correlations arising from inherent clustering patterns in real-world datasets (e.g., due to differe…

cs.CV2024★ 1 cited

Beyond Pixels: Enhancing LIME with Hierarchical Features and Segmentation Foundation Models

Patrick Knab, Sascha Marton, Christian Bartelt

LIME (Local Interpretable Model-agnostic Explanations) is a popular XAI framework for unraveling decision-making processes in vision machine-learning models. The technique utilizes…

cs.LG2023★ 3 cited

GRANDE: Gradient-Based Decision Tree Ensembles for Tabular Data

Sascha Marton, Stefan Lüdtke, Christian Bartelt +1

Despite the success of deep learning for text and image data, tree-based ensemble models are still state-of-the-art for machine learning with heterogeneous tabular data. However, t…

cs.AI2023★ 1 cited

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

Nils Wilken, Lea Cohausz, Christian Bartelt +1

Goal recognition is an important problem in many application domains (e.g., pervasive computing, intrusion detection, computer games, etc.). In many application scenarios, it is im…

cs.LG2023

GradTree: Learning Axis-Aligned Decision Trees with Gradient Descent

Sascha Marton, Stefan Lüdtke, Christian Bartelt +1

Decision Trees (DTs) are commonly used for many machine learning tasks due to their high degree of interpretability. However, learning a DT from data is a difficult optimization pr…

cs.AI2023

Leveraging Planning Landmarks for Hybrid Online Goal Recognition

Nils Wilken, Lea Cohausz, Johannes Schaum +3

Goal recognition is an important problem in many application domains (e.g., pervasive computing, intrusion detection, computer games, etc.). In many application scenarios it is imp…

cs.LG2022

Outlier Explanation via Sum-Product Networks

Stefan Lüdtke, Christian Bartelt, Heiner Stuckenschmidt

Outlier explanation is the task of identifying a set of features that distinguish a sample from normal data, which is important for downstream (human) decision-making. Existing met…

cs.LG2022★ 2 cited

Explaining Neural Networks without Access to Training Data

Sascha Marton, Stefan Lüdtke, Christian Bartelt +2

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. Recently, $\math…

cs.LG2021

Exchangeability-Aware Sum-Product Networks

Stefan Lüdtke, Christian Bartelt, Heiner Stuckenschmidt

Sum-Product Networks (SPNs) are expressive probabilistic models that provide exact, tractable inference. They achieve this efficiency by making use of local independence. On the ot…

cs.AI2020

xRAI: Explainable Representations through AI

Christiann Bartelt, Sascha Marton, Heiner Stuckenschmidt

We present xRAI an approach for extracting symbolic representations of the mathematical function a neural network was supposed to learn from the trained network. The approach is ba…