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Heiner Stuckenschmidt

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#machine learning Preprint Sep 2026

On the Potential of Multi-Task Learning in Predictive Process Monitoring

The first comprehensive empirical study of MTL for PPM is presented, evaluating a variety of task combinations, neural architectures, and optimization methods and finding substantial improvements in next-activity prediction and inherent mitigation of class imbalance using MTL.

Lukas Kirchdorfer, Keyvan Amiri Elyasi, Heiner Stuckenschmidt · 0 citations
Preprint Aug 2026

Mood Matters: How Syntactic Sensitivity Undermines Safety Alignment

Large language models typically undergo post-training to align them with safety policies but there exist many sophisticated jailbreaks that sidestep established safeguards. For instance, prior work by Andriushchenko et al. (2025) has found that changing the grammatical tense from present to past can be enough to elicit...

Alina Klerings, Jannik Brinkmann, Heiner Stuckenschmidt et al. · 0 citations
Preprint Aug 2026

Lost in Aggregation: How Benchmarks Overlook Irreplaceable Model Strengths

This work argues that benchmark evaluation should also consider the data-centric peak performance frontier, defined by the best statistically supported performance achieved on each dataset, and finds that common aggregation metrics are highly correlated and largely measure consistency and avoiding failures, while being...

Andrej Tschalzev, Stefan Lüdtke, Heiner Stuckenschmidt et al. · 0 citations

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