activity
20212026
most citedExploiting Cultural Biases via Homoglyphs in Text-to-Image Synthesis

34 citations · 137 across the 37 of their papers we have counts for

collaborators

40 papers

cs.SD2026

VoiceNet: Fine-Grained Voice Understanding Beyond Emotion at Scale

Christoph Schuhmann, Robert Kaczmarczyk, Gollam Rabby +7

Expressive speech synthesis has outpaced expressive speech perception: systems now render fine-grained vocal performances that no public benchmark can score. Most benchmarks for th…

cs.LG2026

Do Sparse Autoencoders Learn Meaningful Concept Hierarchies?

Nils Grandien, David Steinmann, Felix Friedrich +1

Sparse autoencoders (SAEs) have become an important tool for unsupervised concept discovery in large models. To make the resulting feature spaces more interpretable and manageable,…

cs.LG2026

The Reward Was in Your Data All Along: Correcting Flow Matching with Discriminator-Guided RL

Nicolas Beltran-Velez, Felix Friedrich, Zhang Xiaofeng +4

Score- and flow-matching models often rely on preference-based reinforcement learning for two purposes: aligning with subjective preferences and, surprisingly, recovering propertie…

cs.AI2026

Every Eval Ever: A Unifying Schema and Community Repository for AI Evaluation Results

Jan Batzner, Sree Harsha Nelaturu, Damian Stachura +45

AI evaluations are widely used for testing and understanding progress. However, the diverse evaluators bring with them inconsistencies that challenge analysis and comparison. First…

cs.CV2026

No Safe Dose: How Training Data Drives Unsafe Image Generation

Felix Friedrich, Lukas Helff, Niharika Hegde +2

Text-to-image models trained on large-scale data often inevitably ingest unsafe content. While some people observe input-output amplifications, it remains unclear whether and how t…

cs.LG2026

LLMs Gaming Verifiers: RLVR can Lead to Reward Hacking

Lukas Helff, Quentin Delfosse, David Steinmann +6

As reinforcement Learning with Verifiable Rewards (RLVR) has become the dominant paradigm for scaling reasoning capabilities in LLMs, a new failure mode emerges: LLMs gaming verifi…

cs.CL2025

LIME: Making LLM Data More Efficient with Linguistic Metadata Embeddings

Sebastian Sztwiertnia, Felix Friedrich, Kristian Kersting +2

Pre-training decoder-only language models relies on vast amounts of high-quality data, yet the availability of such data is increasingly reaching its limits. While metadata is comm…

cs.LG2025

ActivationReasoning: Logical Reasoning in Latent Activation Spaces

Lukas Helff, Ruben Härle, Wolfgang Stammer +6

Large language models (LLMs) excel at generating fluent text, but their internal reasoning remains opaque and difficult to control. Sparse autoencoders (SAEs) make hidden activatio…

cs.CL2025

Beyond Overcorrection: Evaluating Diversity in T2I Models with DivBench

Felix Friedrich, Thiemo Ganesha Welsch, Manuel Brack +2

Current diversification strategies for text-to-image (T2I) models often ignore contextual appropriateness, leading to over-diversification where demographic attributes are modified…

cs.CV2025

How to Train your Text-to-Image Model: Evaluating Design Choices for Synthetic Training Captions

Manuel Brack, Sudeep Katakol, Felix Friedrich +4

Training data is at the core of any successful text-to-image models. The quality and descriptiveness of image text are crucial to a model's performance. Given the noisiness and inc…

cs.CL2025

Measuring and Guiding Monosemanticity

Ruben Härle, Felix Friedrich, Manuel Brack +4

There is growing interest in leveraging mechanistic interpretability and controllability to better understand and influence the internal dynamics of large language models (LLMs). H…

cs.AI2025

SLR: Automated Synthesis for Scalable Logical Reasoning

Lukas Helff, Ahmad Omar, Felix Friedrich +7

We introduce SLR, an end-to-end framework for systematic evaluation and training of Large Language Models (LLMs) via Scalable Logical Reasoning. Given a user's task specification,…

cs.CL2025

EmoNet-Voice: A Fine-Grained, Expert-Verified Benchmark for Speech Emotion Detection

Christoph Schuhmann, Robert Kaczmarczyk, Gollam Rabby +6

Speech emotion recognition (SER) systems are constrained by existing datasets that typically cover only 6-10 basic emotions, lack scale and diversity, and face ethical challenges w…

cs.CV2025

EmoNet-Face: An Expert-Annotated Benchmark for Synthetic Emotion Recognition

Christoph Schuhmann, Robert Kaczmarczyk, Gollam Rabby +7

Effective human-AI interaction relies on AI's ability to accurately perceive and interpret human emotions. Current benchmarks for vision and vision-language models are severely lim…

cs.CY2025★ 4 cited

AILuminate: Introducing v1.0 of the AI Risk and Reliability Benchmark from MLCommons

Shaona Ghosh, Heather Frase, Adina Williams +99

The rapid advancement and deployment of AI systems have created an urgent need for standard safety-evaluation frameworks. This paper introduces AILuminate v1.0, the first comprehen…

cs.AI2025★ 3 cited

The Cake that is Intelligence and Who Gets to Bake it: An AI Analogy and its Implications for Participation

Martin Mundt, Anaelia Ovalle, Felix Friedrich +5

In a widely popular analogy by Turing Award Laureate Yann LeCun, machine intelligence has been compared to cake - where unsupervised learning forms the base, supervised learning ad…

cs.CL2025

MSTS: A Multimodal Safety Test Suite for Vision-Language Models

Paul Röttger, Giuseppe Attanasio, Felix Friedrich +19

Vision-language models (VLMs), which process image and text inputs, are increasingly integrated into chat assistants and other consumer AI applications. Without proper safeguards,…

cs.LG2024★ 1 cited

Navigating Shortcuts, Spurious Correlations, and Confounders: From Origins via Detection to Mitigation

David Steinmann, Felix Divo, Maurice Kraus +4

Shortcuts, also described as Clever Hans behavior, spurious correlations, or confounders, present a significant challenge in machine learning and AI, critically affecting model gen…

cs.CL2024★ 1 cited

SCAR: Sparse Conditioned Autoencoders for Concept Detection and Steering in LLMs

Ruben Härle, Felix Friedrich, Manuel Brack +3

Large Language Models (LLMs) have demonstrated remarkable capabilities in generating human-like text, but their output may not be aligned with the user or even produce harmful cont…

cs.CL2024

LLMs Lost in Translation: M-ALERT uncovers Cross-Linguistic Safety Inconsistencies

Felix Friedrich, Simone Tedeschi, Patrick Schramowski +5

Building safe Large Language Models (LLMs) across multiple languages is essential in ensuring both safe access and linguistic diversity. To this end, we conduct a large-scale, comp…

cs.CV2024

LlavaGuard: An Open VLM-based Framework for Safeguarding Vision Datasets and Models

Lukas Helff, Felix Friedrich, Manuel Brack +2

This paper introduces LlavaGuard, a suite of VLM-based vision safeguards that address the critical need for reliable guardrails in the era of large-scale data and models. To this e…

cs.CL2024★ 3 cited

ALERT: A Comprehensive Benchmark for Assessing Large Language Models' Safety through Red Teaming

Simone Tedeschi, Felix Friedrich, Patrick Schramowski +4

When building Large Language Models (LLMs), it is paramount to bear safety in mind and protect them with guardrails. Indeed, LLMs should never generate content promoting or normali…

cs.CL2024★ 1 cited

Aurora-M: Open Source Continual Pre-training for Multilingual Language and Code

Taishi Nakamura, Mayank Mishra, Simone Tedeschi +42

Pretrained language models are an integral part of AI applications, but their high computational cost for training limits accessibility. Initiatives such as Bloom and StarCoder aim…

cs.CL2024★ 1 cited

Multilingual Text-to-Image Generation Magnifies Gender Stereotypes and Prompt Engineering May Not Help You

Felix Friedrich, Katharina Hämmerl, Patrick Schramowski +4

Text-to-image generation models have recently achieved astonishing results in image quality, flexibility, and text alignment, and are consequently employed in a fast-growing number…