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Unsupervised industrial anomaly detection (UAD) is essential for modern manufacturing inspection, where defect samples are scarce and reliable detection is required. In this paper, we propose HLGFA, a high-low resolution guided feature…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Han Zhou , Yuxuan Gao , Yinchao Du , Xuezhe Zheng

With recent progress in deep generative models, the problem of identifying synthetic data and comparing their underlying generative processes has become an imperative task for various reasons, including fighting visual misinformation and…

Machine Learning · Computer Science 2022-06-07 Hae Jin Song , Wael AbdAlmageed

For person re-identification (re-id), attention mechanisms have become attractive as they aim at strengthening discriminative features and suppressing irrelevant ones, which matches well the key of re-id, i.e., discriminative feature…

Computer Vision and Pattern Recognition · Computer Science 2020-03-30 Zhizheng Zhang , Cuiling Lan , Wenjun Zeng , Xin Jin , Zhibo Chen

Graph data is informative to represent complex relationships such as transactions between accounts, communications between devices, and dependencies among machines or processes. Correspondingly, graph anomaly detection (GAD) plays a…

Machine Learning · Computer Science 2026-03-27 Lecheng Zheng , Dongqi Fu , Zihao Li , Jingrui He

Zero-shot 3D anomaly detection aims to identify anomalies without access to training data from target categories. However, existing methods mainly rely on projecting 3D observations into multi-view representations that primarily capture…

Computer Vision and Pattern Recognition · Computer Science 2026-05-08 Letian Bai , Xuanming Cao , Juan Du , Chengyu Tao

The widespread application of graph data in various high-risk scenarios has increased attention to graph anomaly detection (GAD). Faced with real-world graphs that often carry node descriptions in the form of raw text sequences, termed…

Machine Learning · Computer Science 2025-08-04 Yiming Xu , Xu Hua , Zhen Peng , Bin Shi , Jiarun Chen , Xingbo Fu , Song Wang , Bo Dong

Given a source portrait, the automatic human body reshaping task aims at editing it to an aesthetic body shape. As the technology has been widely used in media, several methods have been proposed mainly focusing on generating optical flow…

Computer Vision and Pattern Recognition · Computer Science 2025-01-28 Qiwen Deng , Yangcen Liu , Wen Li , Guoqing Wang

We reveal a one-class homophily phenomenon, which is one prevalent property we find empirically in real-world graph anomaly detection (GAD) datasets, i.e., normal nodes tend to have strong connection/affinity with each other, while the…

Social and Information Networks · Computer Science 2024-04-05 Hezhe Qiao , Guansong Pang

Previous Face Anti-spoofing (FAS) methods face the challenge of generalizing to unseen domains, mainly because most existing FAS datasets are relatively small and lack data diversity. Thanks to the development of face recognition in the…

Computer Vision and Pattern Recognition · Computer Science 2024-12-12 Xingming Long , Jie Zhang , Shiguang Shan

Graph anomaly detection (GAD) has gained increasing attention in recent years due to its critical application in a wide range of domains, such as social networks, financial risk management, and traffic analysis. Existing GAD methods can be…

Social and Information Networks · Computer Science 2023-11-21 Jie Liu , Mengting He , Xuequn Shang , Jieming Shi , Bin Cui , Hongzhi Yin

Graph Domain Adaptation (GDA) transfers knowledge from labeled source graphs to unlabeled target graphs, addressing the challenge of label scarcity. In this paper, we highlight the significance of graph homophily, a pivotal factor for graph…

Social and Information Networks · Computer Science 2025-06-03 Ruiyi Fang , Bingheng Li , Jingyu Zhao , Ruizhi Pu , Qiuhao Zeng , Gezheng Xu , Charles Ling , Boyu Wang

The Fair Graph Anomaly Detection (FairGAD) problem aims to accurately detect anomalous nodes in an input graph while avoiding biased predictions against individuals from sensitive subgroups. However, the current literature does not…

Social and Information Networks · Computer Science 2024-07-30 Neng Kai Nigel Neo , Yeon-Chang Lee , Yiqiao Jin , Sang-Wook Kim , Srijan Kumar

In the current person Re-identification (ReID) methods, most domain generalization works focus on dealing with style differences between domains while largely ignoring unpredictable camera view change, which we identify as another major…

Computer Vision and Pattern Recognition · Computer Science 2022-12-06 Bingliang Jiao , Lingqiao Liu , Liying Gao , Guosheng Lin , Ruiqi Wu , Shizhou Zhang , Peng Wang , Yanning Zhang

Many real-world applications, such as city-scale traffic monitoring and control, requires large-scale re-identification. However, previous ReID methods often failed to address two limitations in existing ReID benchmarks, i.e., low…

Computer Vision and Pattern Recognition · Computer Science 2019-11-28 Ye Yuan , Wuyang Chen , Tianlong Chen , Yang Yang , Zhou Ren , Zhangyang Wang , Gang Hua

Traditional reconstruction-based methods have struggled to achieve competitive performance in anomaly detection. In this paper, we introduce Denoising Diffusion Anomaly Detection (DDAD), a novel denoising process for image reconstruction…

Computer Vision and Pattern Recognition · Computer Science 2025-04-29 Arian Mousakhan , Thomas Brox , Jawad Tayyub

Anomaly detection in time series data is crucial across various domains. The scarcity of labeled data for such tasks has increased the attention towards unsupervised learning methods. These approaches, often relying solely on reconstruction…

Machine Learning · Computer Science 2024-05-14 Ramin Ghorbani , Marcel J. T. Reinders , David M. J. Tax

3D anomaly detection (AD) is a crucial task in computer vision, aiming to identify anomalous points or regions from point cloud data. However, existing methods may encounter challenges when handling point clouds with changes in orientation…

Computer Vision and Pattern Recognition · Computer Science 2025-12-16 Hanzhe Liang , Jie Zhou , Can Gao , Bingyang Guo , Jinbao Wang , Linlin Shen

The recent person re-identification research has achieved great success by learning from a large number of labeled person images. On the other hand, the learned models often experience significant performance drops when applied to images…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Changgong Zhang , Fangneng Zhan

The detection of the abnormal area from urban data is a significant research problem. However, to the best of our knowledge, previous methods designed on spatio-temporal anomalies are road-based or grid-based, which usually causes the data…

Social and Information Networks · Computer Science 2020-07-16 Huaishao Luo , Chuishi Meng , Bowen Wu , Junbo Zhang , Tianrui Li , Yu Zheng

Graph neural networks (GNNs) are powerful tools for handling graph-structured data. However, their design often limits them to learning only higher-order feature interactions, leaving low-order feature interactions overlooked. To address…

Machine Learning · Computer Science 2024-06-14 Minkyu Kim , Hyun-Soo Choi , Jinho Kim