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Anomaly detection suffered from the lack of anomalies due to the diversity of abnormalities and the difficulties of obtaining large-scale anomaly data. Semi-supervised anomaly detection methods are often used to solely leverage normal data…

计算机视觉与模式识别 · 计算机科学 2023-04-11 Jian Shi , Ni Zhang

As the number of heterogenous IP-connected devices and traffic volume increase, so does the potential for security breaches. The undetected exploitation of these breaches can bring severe cybersecurity and privacy risks. Anomaly-based…

机器学习 · 计算机科学 2022-12-15 Willian T. Lunardi , Martin Andreoni Lopez , Jean-Pierre Giacalone

Anomaly detection is crucial for ensuring the stability and reliability of web service systems. Logs and metrics contain multiple information that can reflect the system's operational state and potential anomalies. Thus, existing anomaly…

软件工程 · 计算机科学 2025-01-29 Xixuan Yang , Xin Huang , Chiming Duan , Tong Jia , Shandong Dong , Ying Li , Gang Huang

Detecting anomalies in multivariate time-series data is essential in many real-world applications. Recently, various deep learning-based approaches have shown considerable improvements in time-series anomaly detection. However, existing…

机器学习 · 计算机科学 2022-01-31 Kyeong-Joong Jeong , Yong-Min Shin

Anomaly detection is a critical task in industrial manufacturing, aiming to identify defective parts of products. Most industrial anomaly detection methods assume the availability of sufficient normal data for training. This assumption may…

计算机视觉与模式识别 · 计算机科学 2024-08-06 Zhenyu Yan , Qingqing Fang , Wenxi Lv , Qinliang Su

Machine-vision-based defect classification techniques have been widely adopted for automatic quality inspection in manufacturing processes. This article describes a general framework for classifying defects from high volume data batches…

计算机视觉与模式识别 · 计算机科学 2023-07-04 Wenbo Sun , Raed Al Kontar , Judy Jin , Tzyy-Shuh Chang

Graph anomaly detection (GAD) is critical for identifying abnormal nodes in graph-structured data from diverse domains, including cybersecurity and social networks. The existing GAD methods often focus on the learning paradigms of…

机器学习 · 计算机科学 2026-02-24 Yixin Liu , Shiyuan Li , Yu Zheng , Qingfeng Chen , Chengqi Zhang , Philip S. Yu , Shirui Pan

Anomaly detection plays a crucial role in industrial settings, particularly in maintaining the reliability and optimal performance of cooling systems. Traditional anomaly detection methods often face challenges in handling diverse data…

机器学习 · 计算机科学 2024-04-26 Sarala Naidu , Ning Xiong

Cloud security is an important concern. To identify and stop cyber threats, efficient data collection methods are necessary. This research presents an innovative method to cloud security by integrating numerous data sources and modalities…

密码学与安全 · 计算机科学 2025-12-01 Aamiruddin Syed , Mohammed Ilyas Ahmad

Deep anomaly detection is a difficult task since, in high dimensions, it is hard to completely characterize a notion of "differentness" when given only examples of normality. In this paper we propose a novel approach to deep anomaly…

机器学习 · 计算机科学 2020-10-07 Lucas Deecke , Lukas Ruff , Robert A. Vandermeulen , Hakan Bilen

Image anomaly detection (IAD) is an emerging and vital computer vision task in industrial manufacturing (IM). Recently, many advanced algorithms have been reported, but their performance deviates considerably with various IM settings. We…

计算机视觉与模式识别 · 计算机科学 2024-01-30 Guoyang Xie , Jinbao Wang , Jiaqi Liu , Jiayi Lyu , Yong Liu , Chengjie Wang , Feng Zheng , Yaochu Jin

Classification algorithms have been widely adopted to detect anomalies for various systems, e.g., IoT, cloud and face recognition, under the common assumption that the data source is clean, i.e., features and labels are correctly set.…

机器学习 · 计算机科学 2019-11-12 Zilong Zhao , Robert Birke , Rui Han , Bogdan Robu , Sara Bouchenak , Sonia Ben Mokhtar , Lydia Y. Chen

Quantum machine learning has gained attention for its potential to address computational challenges. However, whether those algorithms can effectively solve practical problems and outperform their classical counterparts, especially on…

量子物理 · 物理学 2025-10-28 Maida Wang , Jinyang Jiang , Peter V. Coveney

Many unsupervised visual anomaly detection methods train an auto-encoder to reconstruct normal samples and then leverage the reconstruction error map to detect and localize the anomalies. However, due to the powerful modeling and…

计算机视觉与模式识别 · 计算机科学 2024-12-18 Qingqing Fang , Qinliang Su , Wenxi Lv , Wenchao Xu , Jianxing Yu

The recent rapid development of deep learning has laid a milestone in industrial Image Anomaly Detection (IAD). In this paper, we provide a comprehensive review of deep learning-based image anomaly detection techniques, from the…

计算机视觉与模式识别 · 计算机科学 2024-04-02 Jiaqi Liu , Guoyang Xie , Jinbao Wang , Shangnian Li , Chengjie Wang , Feng Zheng , Yaochu Jin

Current unsupervised anomaly detection approaches perform well on public datasets but struggle with specific anomaly types due to the domain gap between pre-trained feature extractors and target-specific domains. To tackle this issue, this…

计算机视觉与模式识别 · 计算机科学 2024-07-02 Yun Liang , Zhiguang Hu , Junjie Huang , Donglin Di , Anyang Su , Lei Fan

Detecting abnormal nodes from attributed networks is of great importance in many real applications, such as financial fraud detection and cyber security. This task is challenging due to both the complex interactions between the anomalous…

机器学习 · 计算机科学 2023-10-02 Jiaqiang Zhang , Senzhang Wang , Songcan Chen

Automatic detection of visual anomalies and changes in the environment has been a topic of recurrent attention in the fields of machine learning and computer vision over the past decades. A visual anomaly or change detection algorithm…

计算机视觉与模式识别 · 计算机科学 2022-09-07 Sahar Salimpour , Jorge Peña Queralta , Tomi Westerlund

Data augmentation methods are commonly integrated into the training of anomaly detection models. Previous approaches have primarily focused on replicating real-world anomalies or enhancing diversity, without considering that the standard of…

人工智能 · 计算机科学 2024-12-30 Jiang Lin , Yaping Yan

Mechanical devices such as engines, vehicles, aircrafts, etc., are typically instrumented with numerous sensors to capture the behavior and health of the machine. However, there are often external factors or variables which are not captured…

人工智能 · 计算机科学 2016-07-12 Pankaj Malhotra , Anusha Ramakrishnan , Gaurangi Anand , Lovekesh Vig , Puneet Agarwal , Gautam Shroff