Search Results for author: Felix Michels

Found 5 papers, 3 papers with code

Rethinking cluster-conditioned diffusion models

no code implementations1 Mar 2024 Nikolas Adaloglou, Tim Kaiser, Felix Michels, Markus Kollmann

We present a comprehensive experimental study on image-level conditioning for diffusion models using cluster assignments.

Clustering Conditional Image Generation +1

Exploring the Limits of Deep Image Clustering using Pretrained Models

1 code implementation31 Mar 2023 Nikolas Adaloglou, Felix Michels, Hamza Kalisch, Markus Kollmann

We present a general methodology that learns to classify images without labels by leveraging pretrained feature extractors.

 Ranked #1 on Image Clustering on CIFAR-10 (using extra training data)

Clustering Image Clustering

Adapting Contrastive Language-Image Pretrained (CLIP) Models for Out-of-Distribution Detection

1 code implementation10 Mar 2023 Nikolas Adaloglou, Felix Michels, Tim Kaiser, Markus Kollmann

Intriguingly, we show that (i) PLP outperforms the previous state-of-the-art \citep{ming2022mcm} on all $5$ large-scale benchmarks based on ImageNet, specifically by an average AUROC gain of 3. 4\% using the largest CLIP model (ViT-G), (ii) we show that linear probing outperforms fine-tuning by large margins for CLIP architectures (i. e.

Anomaly Detection Image Captioning +3

Learning to Detect Adversarial Examples Based on Class Scores

no code implementations9 Jul 2021 Tobias Uelwer, Felix Michels, Oliver De Candido

Our method is able to detect adversarial examples generated by various attacks, and can be easily adopted to a plethora of deep classification models.

Adversarial Attack Detection Classification

On the Vulnerability of Capsule Networks to Adversarial Attacks

1 code implementation9 Jun 2019 Felix Michels, Tobias Uelwer, Eric Upschulte, Stefan Harmeling

This paper extensively evaluates the vulnerability of capsule networks to different adversarial attacks.

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