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While recent anomaly detection (AD) methods have made substantial progress in recognizing abnormal patterns within specific domains, most of them are specialist models that are trained on large training samples from a specific target…

计算机视觉与模式识别 · 计算机科学 2026-04-07 Jiawen Zhu , Mengjia Niu , Guansong Pang

Visual anomaly detection (AD) for industrial inspection is a highly relevant task in modern production environments. The problem becomes particularly challenging when training and deployment data differ due to changes in acquisition…

计算机视觉与模式识别 · 计算机科学 2026-05-15 Lukas Roming , Felix Lehnerer , Jonas V. Funk , Andreas Michel , Georg Maier , Thomas Längle , Jürgen Beyerer

Graph anomaly detection on attributed networks has become a prevalent research topic due to its broad applications in many influential domains. In real-world scenarios, nodes and edges in attributed networks usually display distinct…

社会与信息网络 · 计算机科学 2022-08-18 Shujie Yang , Binchi Zhang , Shangbin Feng , Zhaoxuan Tan , Qinghua Zheng , Jun Zhou , Minnan Luo

Time series anomaly detection (TSAD) is essential for maintaining the reliability and security of IoT-enabled service systems. Existing methods require training one specific model for each dataset, which exhibits limited generalization…

机器学习 · 计算机科学 2026-04-23 PengYu Chen , Shang Wan , Xiaohou Shi , Yuan Chang , Yan Sun , Sajal K. Das

Precise anomaly detection in medical images is critical for clinical decision-making. While recent unsupervised or semi-supervised anomaly detection methods trained on large-scale normal data show promising results, they lack fine-grained…

计算机视觉与模式识别 · 计算机科学 2025-08-12 Yue Zhou , Yuan Bi , Wenjuan Tong , Wei Wang , Nassir Navab , Zhongliang Jiang

Unsupervised visual anomaly detection from multi-view images presents a significant challenge: distinguishing genuine defects from benign appearance variations caused by viewpoint changes. Existing methods, often designed for single-view…

计算机视觉与模式识别 · 计算机科学 2025-11-25 Xintao Chen , Xiaohao Xu , Bozhong Zheng , Yun Liu , Yingna Wu

Anomaly detection is critical for the secure and reliable operation of industrial control systems. As our reliance on such complex cyber-physical systems grows, it becomes paramount to have automated methods for detecting anomalies,…

机器学习 · 计算机科学 2024-05-10 Mayra Macas , Chunming Wu , Walter Fuertes

Anomaly detection is an important task for complex systems (e.g., industrial facilities, manufacturing, large-scale science experiments), where failures in a sub-system can lead to low yield, faulty products, or even damage to components.…

机器学习 · 计算机科学 2023-09-06 Ryan Humble , Zhe Zhang , Finn O'Shea , Eric Darve , Daniel Ratner

Video Anomaly Detection (VAD) finds widespread applications in security surveillance, traffic monitoring, industrial monitoring, and healthcare. Despite extensive research efforts, there remains a lack of concise reviews that provide…

计算机视觉与模式识别 · 计算机科学 2024-11-01 Liyun Zhu , Lei Wang , Arjun Raj , Tom Gedeon , Chen Chen

Industrial anomaly detection (IAD) has garnered significant attention and experienced rapid development. However, the recent development of IAD approach has encountered certain difficulties due to dataset limitations. On the one hand, most…

计算机视觉与模式识别 · 计算机科学 2024-03-20 Chengjie Wang , Wenbing Zhu , Bin-Bin Gao , Zhenye Gan , Jianning Zhang , Zhihao Gu , Shuguang Qian , Mingang Chen , Lizhuang Ma

Network anomaly detection aims to find network elements (e.g., nodes, edges, subgraphs) with significantly different behaviors from the vast majority. It has a profound impact in a variety of applications ranging from finance, healthcare to…

机器学习 · 计算机科学 2021-02-23 Kaize Ding , Qinghai Zhou , Hanghang Tong , Huan Liu

Trajectory anomaly detection is essential for identifying unusual and unexpected movement patterns in applications ranging from intelligent transportation systems to urban safety and fraud prevention. Existing methods only consider limited…

机器学习 · 计算机科学 2025-09-24 Jonathan Kabala Mbuya , Dieter Pfoser , Antonios Anastasopoulos

Medical ultrasound video analysis is challenging due to variable sequence lengths, subtle spatial cues, and the need for interpretable video-level assessment. We introduce GADA, a Graph Attention-based Detection Aggregation framework that…

图像与视频处理 · 电气工程与系统科学 2025-10-14 Li Chen , Naveen Balaraju , Jochen Kruecker , Balasundar Raju , Alvin Chen

Few-shot object detection (FSOD) aims at learning a detector that can fast adapt to previously unseen objects with scarce annotated examples, which is challenging and demanding. Existing methods solve this problem by performing subtasks of…

计算机视觉与模式识别 · 计算机科学 2021-04-20 Longyao Liu , Bo Ma , Yulin Zhang , Xin Yi , Haozhi Li

Video Anomaly Detection (VAD) serves as a pivotal technology in the intelligent surveillance systems, enabling the temporal or spatial identification of anomalous events within videos. While existing reviews predominantly concentrate on…

计算机视觉与模式识别 · 计算机科学 2024-02-02 Yang Liu , Dingkang Yang , Yan Wang , Jing Liu , Jun Liu , Azzedine Boukerche , Peng Sun , Liang Song

Anomaly detection (AD) is a task that distinguishes normal and abnormal data, which is important for applying automation technologies of the manufacturing facilities. For MVTec dataset that is a representative AD dataset for industrial…

计算机视觉与模式识别 · 计算机科学 2025-06-11 Jongyub Seok , Chanjin Kang

Graph anomaly detection has attracted considerable attention from various domain ranging from network security to finance in recent years. Due to the fact that labeling is very costly, existing methods are predominately developed in an…

机器学习 · 计算机科学 2024-04-15 Hwan Kim , Junghoon Kim , Byung Suk Lee , Sungsu Lim

Anomaly detection is defined as discovering patterns that do not conform to the expected behavior. Previously, anomaly detection was mostly conducted using traditional shallow learning techniques, but with little improvement. As the…

计算机视觉与模式识别 · 计算机科学 2022-12-13 Zhiyuan Liu , Chunjie Cao , Jingzhang Sun

Graph anomaly detection (GAD) has become an increasingly important task across various domains. With the rapid development of graph neural networks (GNNs), GAD methods have achieved significant performance improvements. However, fairness…

机器学习 · 计算机科学 2025-08-15 Shouju Wang , Yuchen Song , Sheng'en Li , Dongmian Zou

Human Action Anomaly Detection (HAAD) aims to identify anomalous actions given only normal action data during training. Existing methods typically follow a one-model-per-category paradigm, requiring separate training for each action…

计算机视觉与模式识别 · 计算机科学 2025-08-26 Koichiro Kamide , Shunsuke Sakai , Shun Maeda , Chunzhi Gu , Chao Zhang