activity
20242026
most citedUnsupervised Surrogate Anomaly Detection

1 citations · 2 across the 12 of their papers we have counts for

collaborators

13 papers

cs.LG2026

From Data to Program: Fast & Direct Generative Program Inference from Empirical Data

Simon Klüttermann, Xueying Ding, Leman Akoglu

Estimating probability densities from a finite set of samples typically requires dataset-specific model fitting. We introduce PRODiGI, a pretrained data-to-program model that infer…

cs.LG2026

Why Ranking Anomaly Detection Algorithms Isn't as Reliable as You May Think

Simon Klüttermann, Jérôme Rutinowski, Frederik Polachowski +1

Anomaly detection is a safety-critical machine learning problem with applications ranging from fraud detection to network intrusion prevention and industrial monitoring. Despite th…

cs.LG2026

RangeAD: Fast On-Model Anomaly Detection

Luca Hinkamp, Simon Klüttermann, Emmanuel Müller

In practice, machine learning methods commonly require anomaly detection (AD) to filter inputs or detect distributional shifts. Typically, this is implemented by running a separate…

cs.LG2026

Unsupervised Symbolic Anomaly Detection

Md Maruf Hossain, Tim Katzke, Simon Klüttermann +1

We propose SYRAN, an unsupervised anomaly detection method based on symbolic regression. Instead of encoding normal patterns in an opaque, high-dimensional model, our method learns…

cs.LG2026

FoMo X: Modular Explainability Signals for Outlier Detection Foundation Models

Simon Klüttermann, Tim Katzke, Phuong Huong Nguyen +1

Tabular foundation models, specifically Prior-Data Fitted Networks (PFNs), have revolutionized outlier detection (OD) by enabling unsupervised zero-shot adaptation to new datasets…

cs.LG2026

Towards Foundation Models for Consensus Rank Aggregation

Yijun Jin, Simon Klüttermann, Chiara Balestra +1

Aggregating a consensus ranking from multiple input rankings is a fundamental problem with applications in recommendation systems, search engines, job recruitment, and elections. D…

cs.LG2026

MacrOData: New Benchmarks of Thousands of Datasets for Tabular Outlier Detection

Xueying Ding, Simon Klüttermann, Haomin Wen +2

Quality benchmarks are essential for fairly and accurately tracking scientific progress and enabling practitioners to make informed methodological choices. Outlier detection (OD) o…

cs.NE2025

Towards Evolutionary Optimization Using the Ising Model

Simon Klüttermann

In this paper, we study the problem of finding the global minima of a given function. Specifically, we consider complicated functions with numerous local minima, as is often the ca…

cs.LG2025

Rare anomalies require large datasets: About proving the existence of anomalies

Simon Klüttermann, Emmanuel Müller

Detecting whether any anomalies exist within a dataset is crucial for effective anomaly detection, yet it remains surprisingly underexplored in anomaly detection literature. This p…

cs.LG2025

Polyra Swarms: A Shape-Based Approach to Machine Learning

Simon Klüttermann, Emmanuel Müller

We propose Polyra Swarms, a novel machine-learning approach that approximates shapes instead of functions. Our method enables general-purpose learning with very low bias. In partic…

cs.LG2025★ 1 cited

Unsupervised Surrogate Anomaly Detection

Simon Klüttermann, Tim Katzke, Emmanuel Müller

In this paper, we study unsupervised anomaly detection algorithms that learn a neural network representation, i.e. regular patterns of normal data, which anomalies are deviating fr…

cs.LG2024★ 1 cited

Exploring the Impact of Outlier Variability on Anomaly Detection Evaluation Metrics

Minjae Ok, Simon Klüttermann, Emmanuel Müller

Anomaly detection is a dynamic field, in which the evaluation of models plays a critical role in understanding their effectiveness. The selection and interpretation of the evaluati…

cs.LG2024

On the Effectiveness of Heterogeneous Ensemble Methods for Re-identification

Simon Klüttermann, Jérôme Rutinowski, Anh Nguyen +3

In this contribution, we introduce a novel ensemble method for the re-identification of industrial entities, using images of chipwood pallets and galvanized metal plates as dataset…