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Vision foundation models (FMs) achieve state-of-the-art performance in medical imaging. However, they encode information in abstract latent representations that clinicians cannot interrogate or verify. The goal of this study is to…

计算机视觉与模式识别 · 计算机科学 2026-03-26 Philipp Wesp , Robbie Holland , Vasiliki Sideri-Lampretsa , Sergios Gatidis

Despite strong empirical performance for image classification, deep neural networks are often regarded as ``black boxes'' and they are difficult to interpret. On the other hand, sparse convolutional models, which assume that a signal can be…

计算机视觉与模式识别 · 计算机科学 2022-10-25 Xili Dai , Mingyang Li , Pengyuan Zhai , Shengbang Tong , Xingjian Gao , Shao-Lun Huang , Zhihui Zhu , Chong You , Yi Ma

Deepfake detection refers to detecting artificially generated or edited faces in images or videos, which plays an essential role in visual information security. Despite promising progress in recent years, Deepfake detection remains a…

计算机视觉与模式识别 · 计算机科学 2023-12-11 Chunlei Peng , Huiqing Guo , Decheng Liu , Nannan Wang , Ruimin Hu , Xinbo Gao

The ImageNet hierarchy provides a structured taxonomy of object categories, offering a valuable lens through which to analyze the representations learned by deep vision models. In this work, we conduct a comprehensive analysis of how vision…

计算机视觉与模式识别 · 计算机科学 2025-05-23 Matthew Lyle Olson , Musashi Hinck , Neale Ratzlaff , Changbai Li , Phillip Howard , Vasudev Lal , Shao-Yen Tseng

Dense embeddings deliver strong retrieval performance but often lack interpretability and controllability. This paper introduces a novel approach using sparse autoencoders (SAE) to interpret and control dense embeddings via the learned…

信息检索 · 计算机科学 2025-02-25 Hao Kang , Tevin Wang , Chenyan Xiong

This paper aims to interpret how deepfake detection models learn artifact features of images when just supervised by binary labels. To this end, three hypotheses from the perspective of image matching are proposed as follows. 1. Deepfake…

计算机视觉与模式识别 · 计算机科学 2022-07-21 Shichao Dong , Jin Wang , Jiajun Liang , Haoqiang Fan , Renhe Ji

The rapid advancement of generative AI has enabled the mass production of photorealistic synthetic images, blurring the boundary between authentic and fabricated visual content. This challenge is particularly evident in deepfake scenarios…

计算机视觉与模式识别 · 计算机科学 2025-09-30 Minsun Jeon , Simon S. Woo

In this paper, we propose a new unsupervised feature learning framework, namely Deep Sparse Coding (DeepSC), that extends sparse coding to a multi-layer architecture for visual object recognition tasks. The main innovation of the framework…

机器学习 · 计算机科学 2013-12-23 Yunlong He , Koray Kavukcuoglu , Yun Wang , Arthur Szlam , Yanjun Qi

The rapid evolution of generative adversarial networks (GANs) and diffusion models has made synthetic media increasingly realistic, raising societal concerns around misinformation, identity fraud, and digital trust. Existing deepfake…

计算机视觉与模式识别 · 计算机科学 2025-11-03 Sales Aribe

Deepfake is a generative deep learning algorithm that creates or changes facial features in a very realistic way making it hard to differentiate the real from the fake features It can be used to make movies look better as well as to spread…

计算机视觉与模式识别 · 计算机科学 2024-06-21 Nadeem Jabbar CH , Aqib Saghir , Ayaz Ahmad Meer , Salman Ahmad Sahi , Bilal Hassan , Siddiqui Muhammad Yasir

Sparse Autoencoders (SAEs) have become an important tool in mechanistic interpretability, helping to analyze internal representations in both Large Language Models (LLMs) and Vision Transformers (ViTs). By decomposing polysemantic…

机器学习 · 计算机科学 2026-05-11 Jakub Stępień , Marcin Mazur , Jacek Tabor , Przemysław Spurek

We develop the sparse VAE for unsupervised representation learning on high-dimensional data. The sparse VAE learns a set of latent factors (representations) which summarize the associations in the observed data features. The underlying…

机器学习 · 统计学 2025-04-16 Gemma E. Moran , Dhanya Sridhar , Yixin Wang , David M. Blei

Sparse Autoencoders (SAEs) have emerged as a popular tool for interpreting the hidden states of large language models (LLMs). By learning to reconstruct activations from a sparse bottleneck layer, SAEs discover interpretable features from…

计算机视觉与模式识别 · 计算机科学 2025-09-19 Matthew Lyle Olson , Musashi Hinck , Neale Ratzlaff , Changbai Li , Phillip Howard , Vasudev Lal , Shao-Yen Tseng

State-of-the-art deepfake detection approaches rely on image-based features extracted via neural networks. While these approaches trained in a supervised manner extract likely fake features, they may fall short in representing unnatural…

计算机视觉与模式识别 · 计算机科学 2024-07-19 Yue Zhang , Ben Colman , Xiao Guo , Ali Shahriyari , Gaurav Bharaj

To tackle interpretability in deep learning, we present a novel framework to jointly learn a predictive model and its associated interpretation model. The interpreter provides both local and global interpretability about the predictive…

机器学习 · 计算机科学 2022-02-24 Jayneel Parekh , Pavlo Mozharovskyi , Florence d'Alché-Buc

The rapid evolution of deep generative models poses a critical challenge to deepfake detection, as detectors trained on forgery-specific artifacts often suffer significant performance degradation when encountering unseen forgeries. While…

计算机视觉与模式识别 · 计算机科学 2025-04-25 Mengyu Qiao , Runze Tian , Yang Wang

In this paper we propose a new framework for evaluating the performance of explanation methods on the decisions of a deepfake detector. This framework assesses the ability of an explanation method to spot the regions of a fake image with…

计算机视觉与模式识别 · 计算机科学 2024-04-30 Konstantinos Tsigos , Evlampios Apostolidis , Spyridon Baxevanakis , Symeon Papadopoulos , Vasileios Mezaris

Deep Neural Networks use thousands of mostly incomprehensible features to identify a single class, a decision no human can follow. We propose an interpretable sparse and low dimensional final decision layer in a deep neural network with…

计算机视觉与模式识别 · 计算机科学 2023-08-08 Thomas Norrenbrock , Marco Rudolph , Bodo Rosenhahn

The rapid progress of generative AI has enabled highly realistic image manipulations, including inpainting and region-level editing. These approaches preserve most of the original visual context and are increasingly exploited in…

计算机视觉与模式识别 · 计算机科学 2025-12-19 Serafino Pandolfini , Lorenzo Pellegrini , Matteo Ferrara , Davide Maltoni

DeepFake technology has advanced significantly in recent years, enabling the creation of highly realistic synthetic face images. Existing DeepFake detection methods often struggle with pose variations, occlusions, and artifacts that are…

计算机视觉与模式识别 · 计算机科学 2025-10-20 Sami Belguesmia , Mohand Saïd Allili , Assia Hamadene