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Unsupervised Anomaly Detection (UAD) with incremental training is crucial in industrial manufacturing, as unpredictable defects make obtaining sufficient labeled data infeasible. However, continual learning methods primarily rely on…

计算机视觉与模式识别 · 计算机科学 2024-01-03 Jiaqi Liu , Kai Wu , Qiang Nie , Ying Chen , Bin-Bin Gao , Yong Liu , Jinbao Wang , Chengjie Wang , Feng Zheng

Semi-supervised video anomaly detection (VAD) methods formulate the task of anomaly detection as detection of deviations from the learned normal patterns. Previous works in the field (reconstruction or prediction-based methods) suffer from…

计算机视觉与模式识别 · 计算机科学 2022-05-05 Mohammad Baradaran , Robert Bergevin

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

Unsupervised anomaly detection (UAD) alleviates large labeling efforts by training exclusively on unlabeled in-distribution data and detecting outliers as anomalies. Generally, the assumption prevails that large training datasets allow the…

计算机视觉与模式识别 · 计算机科学 2024-10-29 Felix Meissen , Johannes Getzner , Alexander Ziller , Özgün Turgut , Georgios Kaissis , Martin J. Menten , Daniel Rueckert

Anomaly detection is to recognize samples that differ in some respect from the training observations. These samples which do not conform to the distribution of normal data are called outliers or anomalies. In real-world anomaly detection…

计算机视觉与模式识别 · 计算机科学 2022-07-05 Vahid Reza Khazaie , Anthony Wong , Yalda Mohsenzadeh

Anomaly detection is a key research challenge in computer vision and machine learning with applications in many fields from quality control to radar imaging. In radar imaging, specifically synthetic aperture radar (SAR), anomaly detection…

计算机视觉与模式识别 · 计算机科学 2025-04-21 Lucian Chauvin , Somil Gupta , Angelina Ibarra , Joshua Peeples

During the operation of industrial robots, unusual events may endanger the safety of humans and the quality of production. When collecting data to detect such cases, it is not ensured that data from all potentially occurring errors is…

机器人学 · 计算机科学 2023-11-09 Jan Thieß Brockmann , Marco Rudolph , Bodo Rosenhahn , Bastian Wandt

In this paper, we introduce a new benchmark for continual learning in anomaly detection, aimed at better reflecting real-world deployment scenarios. Our benchmark, Continual-MEGA, includes a large and diverse dataset that significantly…

计算机视觉与模式识别 · 计算机科学 2026-02-09 Geonu Lee , Yujeong Oh , Geonhui Jang , Soyoung Lee , Jeonghyo Song , Sungmin Cha , YoungJoon Yoo

Anomaly detection plays a crucial role in various real-world applications, including healthcare and finance systems. Owing to the limited number of anomaly labels in these complex systems, unsupervised anomaly detection methods have…

机器学习 · 计算机科学 2023-10-10 Zongyuan Huang , Baohua Zhang , Guoqiang Hu , Longyuan Li , Yanyan Xu , Yaohui Jin

Anomaly detection (AD) tasks have been solved using machine learning algorithms in various domains and applications. The great majority of these algorithms use normal data to train a residual-based model and assign anomaly scores to unseen…

机器学习 · 计算机科学 2024-02-01 Markus Ulmer , Jannik Zgraggen , Lilach Goren Huber

Anomaly detection is a key goal of autonomous surveillance systems that should be able to alert unusual observations. In this paper, we propose a holistic anomaly detection system using deep neural networks for surveillance of critical…

计算机视觉与模式识别 · 计算机科学 2020-11-06 Ilker Bozcan , Erdal Kayacan

Anomaly detection (AD) is a fundamental task for time-series analytics with important implications for the downstream performance of many applications. In contrast to other domains where AD mainly focuses on point-based anomalies (i.e.,…

3D anomaly detection plays a crucial role in monitoring parts for localized inherent defects in precision manufacturing. Embedding-based and reconstruction-based approaches are among the most popular and successful methods. However, there…

计算机视觉与模式识别 · 计算机科学 2024-07-16 Zheyuan Zhou , Le Wang , Naiyu Fang , Zili Wang , Lemiao Qiu , Shuyou Zhang

Performing anomaly detection in hybrid systems is a challenging task since it requires analysis of timing behavior and mutual dependencies of both discrete and continuous signals. Typically, it requires modeling system behavior, which is…

机器学习 · 计算机科学 2020-10-30 Nemanja Hranisavljevic , Oliver Niggemann , Alexander Maier

Anomaly detection in complex domains poses significant challenges due to the need for extensive labeled data and the inherently imbalanced nature of anomalous versus benign samples. Graph-based machine learning models have emerged as a…

机器学习 · 计算机科学 2025-07-21 Yifan Wei , Anwar Said , Waseem Abbas , Xenofon Koutsoukos

Leveraging deep learning models for Anomaly Detection (AD) has seen widespread use in recent years due to superior performances over traditional methods. Recent deep methods for anomalies in images learn better features of normality in an…

计算与语言 · 计算机科学 2021-04-13 Andrei Manolache , Florin Brad , Elena Burceanu

The primary objective of Continual Anomaly Detection (CAD) is to learn the normal patterns of new tasks under dynamic data distribution assumptions while mitigating catastrophic forgetting. Existing embedding-based CAD approaches…

计算机视觉与模式识别 · 计算机科学 2025-11-13 Gen Yang , Zhipeng Deng , Junfeng Man

State-of-the-art anomalous sound detection (ASD) systems in domain-shifted conditions rely on projecting audio signals into an embedding space and using distance-based outlier detection to compute anomaly scores. One of the major…

音频与语音处理 · 电气工程与系统科学 2025-10-29 Kevin Wilkinghoff , Haici Yang , Janek Ebbers , François G. Germain , Gordon Wichern , Jonathan Le Roux

Industrial anomaly detection (AD) plays a significant role in manufacturing where a long-standing challenge is data scarcity. A growing body of works have emerged to address insufficient anomaly data via anomaly generation. However, these…

计算机视觉与模式识别 · 计算机科学 2025-08-18 Zuo Zuo , Jiahao Dong , Yanyun Qu , Zongze Wu

Anomaly detection, finding patterns that substantially deviate from those seen previously, is one of the fundamental problems of artificial intelligence. Recently, classification-based methods were shown to achieve superior results on this…

机器学习 · 计算机科学 2020-05-06 Liron Bergman , Yedid Hoshen