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Tobias Braun

3 accepted papers

2026

Erased but Not Forgotten: How Backdoors Compromise Concept Erasure

ICML 2026poster

The expansion of text-to-image diffusion models has raised concerns about harmful outputs, from fabricated depictions of public figures to sexually explicit imagery. To mitigate such risks, prior work has proposed concept erasure methods that aim to sever unwanted concepts from the model via fine-tu…

Cited by 0SourceScholar
2026

GEM: Geometric Erasure by Contrastive Velocity Matching in Rectified Flows

ICML 2026spotlight

While the rapid adoption of multimodal generative models offers immense potential, it has also increased the risks of harmful content synthesis, deepfakes, and copyright infringements. To address these challenges, concept erasure has emerged as a prospective safeguard. However, as the field graduall…

Cited by 0SourceScholar
2025

DEFAME: Dynamic Evidence-based FAct-checking with Multimodal Experts

ICML 2025poster

The proliferation of disinformation demands reliable and scalable fact-checking solutions. We present **D**ynamic **E**vidence-based **FA**ct-checking with **M**ultimodal **E**xperts (DEFAME), a modular, zero-shot MLLM pipeline for open-domain, text-image claim verification. DEFAME operates in a six…