Data Obfuscation for Privacy-Preserving Machine Learning Using Quantum Symmetry Properties
Sebastian Raubitzek, Sebastian Schrittwieser, Alexander Schatten, Kevin Mallinger · Big Data and Cognitive Computing · 2025
This study introduces a data obfuscation technique that leverages the exponential map of Lie-group generators. Originating from quantum machine learning frameworks, the method injects controlled noise into these generators, deliberately breaking symmetry and obscuring the source data while retaining predictive utility. Experiments on open medical datasets show that classifiers trained on obfuscated features match or slightly exceed the baseline accuracy obtained on raw data. This work demonstrates how Lie-group theory can advance privacy in sensitive domains by providing simultaneous data obfuscation and augmentation.