activity
20212026
most citedSemisupervised Anomaly Detection using Support Vector Regression with Quantum Kernel

14 citations · 32 across the 14 of their papers we have counts for

collaborators

16 papers

quant-ph2026

A Multiclass Quantum Aligned Centroid Kernel

Kilian Tscharke, Pascal Debus

Kernel methods are powerful tools in machine learning but commonly used full-Gram kernels face three key limitations: (1) quadratic scaling with training set size; (2) the use of f…

quant-ph2026

An End-to-End Multi-Stage Kill-Chain Attack on Quantum Neural Networks: Demonstration on Trapped-Ion Hardware

Cedric Brügmann, Daniel Herr, Daniel Ohl de Mello +7

We demonstrate an end-to-end, multi-stage attack against a quantum neural network (QNN) model that is executed on a trapped-ion quantum computer. Our chain combines side-channel re…

cs.SD2026

The Watermark Shortcut: How Provenance Marking Sabotages Audio Deepfake Detection

Nicolas M. Müller, Pascal Debus

Provenance watermarking is increasingly treated as a safeguard for synthetic speech, whether built directly into speech-generation models such as Chatterbox, provided through dedic…

quant-ph2025★ 5 cited

Quantum Machine Learning Playground

Pascal Debus, Sebastian Issel, Kilian Tscharke

This article introduces an innovative interactive visualization tool designed to demystify quantum machine learning (QML) algorithms. Our work is inspired by the success of classic…

cs.LG2025

Old Rules in a New Game: Mapping Uncertainty Quantification to Quantum Machine Learning

Maximilian Wendlinger, Kilian Tscharke, Pascal Debus

One of the key obstacles in traditional deep learning is the reduction in model transparency caused by increasingly intricate model functions, which can lead to problems such as ov…

quant-ph2025

Entangled Threats: A Unified Kill Chain Model for Quantum Machine Learning Security

Pascal Debus, Maximilian Wendlinger, Kilian Tscharke +7

Quantum Machine Learning (QML) systems inherit vulnerabilities from classical machine learning while introducing new attack surfaces rooted in the physical and algorithmic layers o…

quant-ph2025

Quantum Support Vector Regression for Robust Anomaly Detection

Kilian Tscharke, Maximilian Wendlinger, Sebastian Issel +1

Anomaly Detection (AD) is critical in data analysis, particularly within the domain of IT security. In this study, we explore the potential of Quantum Machine Learning for applicat…

quant-ph2025★ 5 cited

Quantum Autoencoder for Multivariate Time Series Anomaly Detection

Kilian Tscharke, Maximilian Wendlinger, Afrae Ahouzi +4

Anomaly Detection (AD) defines the task of identifying observations or events that deviate from typical - or normal - patterns, a critical capability in IT security for recognizing…

cs.LG2024★ 3 cited

Efficient Quantum One-Class Support Vector Machines for Anomaly Detection Using Randomized Measurements and Variable Subsampling

Michael Kölle, Afrae Ahouzi, Pascal Debus +4

Quantum one-class support vector machines leverage the advantage of quantum kernel methods for semi-supervised anomaly detection. However, their quadratic time complexity with resp…

quant-ph2024★ 3 cited

QUACK: Quantum Aligned Centroid Kernel

Kilian Tscharke, Sebastian Issel, Pascal Debus

Quantum computing (QC) seems to show potential for application in machine learning (ML). In particular quantum kernel methods (QKM) exhibit promising properties for use in supervis…

cs.LG2024★ 1 cited

A Comparative Analysis of Adversarial Robustness for Quantum and Classical Machine Learning Models

Maximilian Wendlinger, Kilian Tscharke, Pascal Debus

Quantum machine learning (QML) continues to be an area of tremendous interest from research and industry. While QML models have been shown to be vulnerable to adversarial attacks m…

quant-ph2024

Towards Classical Software Verification using Quantum Computers

Sebastian Issel, Kilian Tscharke, Pascal Debus

We explore the possibility of accelerating the formal verification of classical programs with a quantum computer. A common source of security flaws stems from the existence of comm…

quant-ph2023★ 1 cited

Towards Efficient Quantum Anomaly Detection: One-Class SVMs using Variable Subsampling and Randomized Measurements

Michael Kölle, Afrae Ahouzi, Pascal Debus +3

Quantum computing, with its potential to enhance various machine learning tasks, allows significant advancements in kernel calculation and model precision. Utilizing the one-class…

cs.AI2023

Protecting Publicly Available Data With Machine Learning Shortcuts

Nicolas M. Müller, Maximilian Burgert, Pascal Debus +3

Machine-learning (ML) shortcuts or spurious correlations are artifacts in datasets that lead to very good training and test performance but severely limit the model's generalizatio…

quant-ph2023★ 14 cited

Semisupervised Anomaly Detection using Support Vector Regression with Quantum Kernel

Kilian Tscharke, Sebastian Issel, Pascal Debus

Anomaly detection (AD) involves identifying observations or events that deviate in some way from the rest of the data. Machine learning techniques have shown success in automating…

cs.CR2021

Deep Reinforcement Learning for Backup Strategies against Adversaries

Pascal Debus, Nicolas Müller, Konstantin Böttinger

Many defensive measures in cyber security are still dominated by heuristics, catalogs of standard procedures, and best practices. Considering the case of data backup strategies, we…