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Lukas Helff

4 accepted papers

2026

ActivationReasoning: Logical Reasoning in Latent Activation Spaces

ICLR 2026poster

Large language models (LLMs) excel at generating fluent text, but their internal reasoning remains opaque and difficult to control. Sparse autoencoders (SAEs) make hidden activations more interpretable by exposing latent features that often align with human concepts. Yet, these features are fragile…

Cited by 0SourcecodeScholar
2026

Synthesizing Visual Concepts as Vision-Language Programs

CVPR 2026

Vision-Language models (VLMs) achieve strong performance on multimodal tasks but often fail at systematic visual reasoning, especially in inductive reasoning problems. Neuro-symbolic methods promise to address this by inducing interpretable logical programs from images, though they usually rely on r

Cited by 0SourceScholar
2025

Bongard in Wonderland: Visual Puzzles that Still Make AI Go Mad?

ICML 2025poster

Recently, newly developed Vision-Language Models (VLMs), such as OpenAI's o1, have emerged, seemingly demonstrating advanced reasoning capabilities across text and image modalities. However, the depth of these advances in language-guided perception and abstract reasoning remains underexplored, and i…

2025

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

ICML 2025poster

This paper introduces Llavaguard, a suite of VLM-based vision safeguards that address the critical need for reliable tools in the era of large-scale data and models. To this end, we establish a novel open framework, describing a customizable safety taxonomy, data preprocessing, augmentation, and tra…