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Deepfake detectors face growing challenges in generalization as new image synthesis techniques emerge. In particular, deepfakes generated by diffusion models are highly photorealistic and often evade detectors trained on GAN-based…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Hongyuan Qi , Wenjin Hou , Hehe Fan , Jun Xiao

We propose a new method to detect deepfake images using the cue of the source feature inconsistency within the forged images. It is based on the hypothesis that images' distinct source features can be preserved and extracted after going…

Computer Vision and Pattern Recognition · Computer Science 2021-07-28 Tianchen Zhao , Xiang Xu , Mingze Xu , Hui Ding , Yuanjun Xiong , Wei Xia

Active Learning (AL) techniques have proven to be highly effective in reducing data labeling costs across a range of machine learning tasks. Nevertheless, one known challenge of these methods is their potential to introduce unfairness…

Machine Learning · Computer Science 2023-12-20 Ricky Fajri , Akrati Saxena , Yulong Pei , Mykola Pechenizkiy

Recently, fake audio detection has gained significant attention, as advancements in speech synthesis and voice conversion have increased the vulnerability of automatic speaker verification (ASV) systems to spoofing attacks. A key challenge…

Audio and Speech Processing · Electrical Eng. & Systems 2025-04-23 Ju Yeon Kang , Ji Won Yoon , Semin Kim , Min Hyun Han , Nam Soo Kim

Visual retrieval systems face significant challenges when updating models with improved representations due to misalignment between the old and new representations. The costly and resource-intensive backfilling process involves…

Computer Vision and Pattern Recognition · Computer Science 2024-08-19 Simone Ricci , Niccolò Biondi , Federico Pernici , Alberto Del Bimbo

Defect detection is a critical research area in artificial intelligence. Recently, synthetic data-based self-supervised learning has shown great potential on this task. Although many sophisticated synthesizing strategies exist, little…

Computer Vision and Pattern Recognition · Computer Science 2023-10-12 Yuxuan Cai , Dingkang Liang , Dongliang Luo , Xinwei He , Xin Yang , Xiang Bai

Distributed reinforcement learning policies face network delays, jitter, and packet loss when deployed across edge devices and cloud servers. Standard RL training assumes zero-latency interaction, causing severe performance degradation…

Machine Learning · Computer Science 2026-03-16 Carlos Purves , Pietro Lio'

Deepfake technology has raised concerns about the authenticity of digital content, necessitating the development of effective detection methods. However, the widespread availability of deepfakes has given rise to a new challenge in the form…

Computer Vision and Pattern Recognition · Computer Science 2024-03-15 Sarwar Khan

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…

Computer Vision and Pattern Recognition · Computer Science 2023-12-11 Chunlei Peng , Huiqing Guo , Decheng Liu , Nannan Wang , Ruimin Hu , Xinbo Gao

The rapid advancement of deepfake generation techniques poses significant threats to public safety and causes societal harm through the creation of highly realistic synthetic facial media. While existing detection methods demonstrate…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Jianfeng Liao , Yichen Wei , Raymond Chan Ching Bon , Shulan Wang , Kam-Pui Chow , Kwok-Yan Lam

With various facial manipulation techniques arising, face forgery detection has drawn growing attention due to security concerns. Previous works always formulate face forgery detection as a classification problem based on cross-entropy…

Computer Vision and Pattern Recognition · Computer Science 2021-12-28 Ke Sun , Taiping Yao , Shen Chen , Shouhong Ding , Jilin L , Rongrong Ji

Deepfake technology poses a significant threat to security and social trust. Although existing detection methods have shown high performance in identifying forgeries within datasets that use the same deepfake techniques for both training…

Computer Vision and Pattern Recognition · Computer Science 2024-10-22 Shanmin Yang , Hui Guo , Shu Hu , Bin Zhu , Ying Fu , Siwei Lyu , Xi Wu , Xin Wang

Detecting deepfakes has become a critical challenge in Computer Vision and Artificial Intelligence. Despite significant progress in detection techniques, generalizing them to open-set scenarios continues to be a persistent difficulty.…

Computer Vision and Pattern Recognition · Computer Science 2025-06-04 Luca Maiano , Fabrizio Casadei , Irene Amerini

Recent successes in learning-based image classification, however, heavily rely on the large number of annotated training samples, which may require considerable human efforts. In this paper, we propose a novel active learning framework,…

Computer Vision and Pattern Recognition · Computer Science 2017-01-16 Keze Wang , Dongyu Zhang , Ya Li , Ruimao Zhang , Liang Lin

Deep neural networks (DNNs) often suffer from the overconfidence issue, where incorrect predictions are made with high confidence scores, hindering the applications in critical systems. In this paper, we propose a novel approach called…

Computer Vision and Pattern Recognition · Computer Science 2024-11-08 Yijun Liu , Jiequan Cui , Zhuotao Tian , Senqiao Yang , Qingdong He , Xiaoling Wang , Jingyong Su

Face anti-spoofing (FAS) has lately attracted increasing attention due to its vital role in securing face recognition systems from presentation attacks (PAs). As more and more realistic PAs with novel types spring up, traditional FAS…

Computer Vision and Pattern Recognition · Computer Science 2022-09-05 Zitong Yu , Yunxiao Qin , Xiaobai Li , Chenxu Zhao , Zhen Lei , Guoying Zhao

While deep learning-based methods for blind face restoration have achieved unprecedented success, they still suffer from two major limitations. First, most of them deteriorate when facing complex degradations out of their training data.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Zongsheng Yue , Chen Change Loy

GAN-generated deepfakes as a genre of digital images are gaining ground as both catalysts of artistic expression and malicious forms of deception, therefore demanding systems to enforce and accredit their ethical use. Existing techniques…

Computer Vision and Pattern Recognition · Computer Science 2022-03-21 Brandon B. G. Khoo , Chern Hong Lim , Raphael C. -W. Phan

Active Learning (AL) aims to enhance the performance of deep models by selecting the most informative samples for annotation from a pool of unlabeled data. Despite impressive performance in closed-set settings, most AL methods fail in…

Computer Vision and Pattern Recognition · Computer Science 2023-12-22 Bardia Safaei , Vibashan VS , Celso M. de Melo , Vishal M. Patel

Multivariate time series anomaly detection has become increasingly important in real-world applications, where labeled data are often scarce. Many existing approaches rely on unsupervised learning to model normal patterns, but they often…

Machine Learning · Computer Science 2026-05-25 Jaehyeop Hong , Youngbum Hur