activity
20242026
most citedWhen Medical Imaging Met Self-Attention: A Love Story That Didn't Quite Work Out

3 citations · 6 across the 8 of their papers we have counts for

collaborators

10 papers

cs.CV2026

On the Faithfulness of Post-Hoc Concept Bottleneck Models

Laines Schmalwasser, Jan Blunk, Niklas Penzel +2

Human decision-making interprets the world through high-level concepts, such as recognizing a bird by its belly color. To bridge the gap between opaque deep learning representation…

cs.LG2026

TCD-Arena: Assessing Robustness of Time Series Causal Discovery Methods Against Assumption Violations

Gideon Stein, Niklas Penzel, Tristan Piater +1

Causal Discovery (CD) is a powerful framework for scientific inquiry. Yet, its practical adoption is hindered by a reliance on strong, often unverifiable assumptions and a lack of…

cs.LG2025

Modeling COVID-19 Dynamics in German States Using Physics-Informed Neural Networks

Phillip Rothenbeck, Sai Karthikeya Vemuri, Niklas Penzel +1

The COVID-19 pandemic has highlighted the need for quantitative modeling and analysis to understand real-world disease dynamics. In particular, post hoc analyses using compartmenta…

cs.LG2025

FastCAV: Efficient Computation of Concept Activation Vectors for Explaining Deep Neural Networks

Laines Schmalwasser, Niklas Penzel, Joachim Denzler +1

Concepts such as objects, patterns, and shapes are how humans understand the world. Building on this intuition, concept-based explainability methods aim to study representations le…

cs.LG2025

CausalRivers -- Scaling up benchmarking of causal discovery for real-world time-series

Gideon Stein, Maha Shadaydeh, Jan Blunk +2

Causal discovery, or identifying causal relationships from observational data, is a notoriously challenging task, with numerous methods proposed to tackle it. Despite this, in-the-…

cs.LG2025

Locally Explaining Prediction Behavior via Gradual Interventions and Measuring Property Gradients

Niklas Penzel, Joachim Denzler

Deep learning models achieve high predictive performance but lack intrinsic interpretability, hindering our understanding of the learned prediction behavior. Existing local explain…

cs.CV2024

Facing Asymmetry -- Uncovering the Causal Link between Facial Symmetry and Expression Classifiers using Synthetic Interventions

Tim Büchner, Niklas Penzel, Orlando Guntinas-Lichius +1

Understanding expressions is vital for deciphering human behavior, and nowadays, end-to-end trained black box models achieve high performance. Due to the black-box nature of these…

cs.CV2024★ 3 cited

When Medical Imaging Met Self-Attention: A Love Story That Didn't Quite Work Out

Tristan Piater, Niklas Penzel, Gideon Stein +1

A substantial body of research has focused on developing systems that assist medical professionals during labor-intensive early screening processes, many based on convolutional dee…

cs.CV2024★ 2 cited

Reducing Bias in Pre-trained Models by Tuning while Penalizing Change

Niklas Penzel, Gideon Stein, Joachim Denzler

Deep models trained on large amounts of data often incorporate implicit biases present during training time. If later such a bias is discovered during inference or deployment, it i…

cs.CV2024★ 1 cited

The Power of Properties: Uncovering the Influential Factors in Emotion Classification

Tim Büchner, Niklas Penzel, Orlando Guntinas-Lichius +1

Facial expression-based human emotion recognition is a critical research area in psychology and medicine. State-of-the-art classification performance is only reached by end-to-end…