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Anomaly detection (AD) plays a vital role across a wide range of real-world domains by identifying data instances that deviate from expected patterns, potentially signaling critical events such as system failures, fraudulent activities, or…

机器学习 · 计算机科学 2025-07-11 Amirhossein Sadough , Mahyar Shahsavari , Mark Wijtvliet , Marcel van Gerven

A deep learning approach is proposed to detect data and system anomalies using high-resolution continuous point-on-wave (CPOW) or phasor measurements. Both the anomaly and anomaly-free measurement models are assumed to have unknown temporal…

系统与控制 · 电气工程与系统科学 2021-06-24 Kursat Rasim Mestav , Xinyi Wang , Lang Tong

Existing Partial Label Learning (PLL) methods posit that training and test data adhere to the same distribution, a premise that frequently does not hold in practical application where Out-of-Distribution (OOD) objects are present. We…

计算机视觉与模式识别 · 计算机科学 2025-03-13 Jintao Huang , Yiu-Ming Cheung , Chi-Man Vong

The quality of training datasets for deep neural networks is a key factor contributing to the accuracy of resulting models. This effect is amplified in difficult tasks such as object detection. Dealing with errors in datasets is often…

计算机视觉与模式识别 · 计算机科学 2023-12-12 Krystian Chachuła , Jakub Łyskawa , Bartłomiej Olber , Piotr Frątczak , Adam Popowicz , Krystian Radlak

Despite the rapid advance of unsupervised anomaly detection, existing methods require to train separate models for different objects. In this work, we present UniAD that accomplishes anomaly detection for multiple classes with a unified…

计算机视觉与模式识别 · 计算机科学 2022-10-26 Zhiyuan You , Lei Cui , Yujun Shen , Kai Yang , Xin Lu , Yu Zheng , Xinyi Le

Anomalies and outliers are common in real-world data, and they can arise from many sources, such as sensor faults. Accordingly, anomaly detection is important both for analyzing the anomalies themselves and for cleaning the data for further…

机器学习 · 统计学 2018-11-13 Haitao Liu , Randy C. Paffenroth , Jian Zou , Chong Zhou

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

We use unlabeled collision data and weakly-supervised learning to train models which can distinguish prompt muons from non-prompt muons using patterns of low-level particle activity in the vicinity of the muon, and interpret the models in…

高能物理 - 实验 · 物理学 2023-06-29 Edmund Witkowski , Benjamin Nachman , Daniel Whiteson

Anomaly detection (AD) aims at detecting abnormal samples that deviate from the expected normal patterns. Generally, it can be trained merely on normal data, without a requirement for abnormal samples, and thereby plays an important role in…

计算机视觉与模式识别 · 计算机科学 2025-02-20 Yu Cai , Weiwen Zhang , Hao Chen , Kwang-Ting Cheng

Open-set anomaly detection (OSAD) is an emerging paradigm designed to utilize limited labeled data from anomaly classes seen in training to identify both seen and unseen anomalies during testing. Current approaches rely on simple…

机器学习 · 计算机科学 2026-05-21 Xiaohui Zhou , Yijie Wang , Hongzuo Xu , Weixuan Liang , Xiaoli Li , Guansong Pang

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

We propose a new setting that relaxes an assumption in the conventional Co-Salient Object Detection (CoSOD) setting by allowing the presence of "noisy images" which do not show the shared co-salient object. We call this new setting…

计算机视觉与模式识别 · 计算机科学 2023-08-14 Jiawei Liu , Jing Zhang , Ruikai Cui , Kaihao Zhang , Weihao Li , Nick Barnes

Multi-label image classification is a fundamental but challenging task towards general visual understanding. Existing methods found the region-level cues (e.g., features from RoIs) can facilitate multi-label classification. Nevertheless,…

计算机视觉与模式识别 · 计算机科学 2019-02-22 Yongcheng Liu , Lu Sheng , Jing Shao , Junjie Yan , Shiming Xiang , Chunhong Pan

In many well-motivated models of the electroweak scale, cascade decays of new particles can result in highly boosted hadronic resonances (e.g. $Z/W/h$). This can make these models rich and promising targets for recently developed resonant…

高能物理 - 唯象学 · 物理学 2024-05-29 Gerrit Bickendorf , Manuel Drees , Gregor Kasieczka , Claudius Krause , David Shih

Unsupervised anomaly detection aims to build models to effectively detect unseen anomalies by only training on the normal data. Although previous reconstruction-based methods have made fruitful progress, their generalization ability is…

机器学习 · 计算机科学 2022-01-04 Yuxin Zhang , Jindong Wang , Yiqiang Chen , Han Yu , Tao Qin

Visual anomaly detection (VAD) is crucial in many real-world fields, such as industrial inspection, medical imaging, infrastructure monitoring, and remote sensing. However, the specific anomaly definitions, data modalities, and annotation…

计算机视觉与模式识别 · 计算机科学 2026-05-12 Xi Jiang , Yinjie Zhao , Zesheng Yang , Feng Zheng

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

Current state-of-the-art multi-class unsupervised anomaly detection (MUAD) methods rely on training encoder-decoder models to reconstruct anomaly-free features. We first show these approaches have an inherent fidelity-stability dilemma in…

计算机视觉与模式识别 · 计算机科学 2026-02-03 Xingwu Zhang , Guanxuan Li , Paul Henderson , Gerardo Aragon-Camarasa , Zijun Long

Disentangling complex causal relationships is important for accurate detection of anomalies. In multivariate time series analysis, dynamic interactions among data variables over time complicate the interpretation of causal relationships.…

机器学习 · 计算机科学 2025-10-14 Wonah Kim , Jeonghyeon Park , Dongsan Jun , Jungkyu Han , Sejin Chun

Detecting anomaly patterns from images is a crucial artificial intelligence technique in industrial applications. Recent research in this domain has emphasized the necessity of a large volume of training data, overlooking the practical…

计算机视觉与模式识别 · 计算机科学 2025-07-30 Shenxing Wei , Xing Wei , Zhiheng Ma , Songlin Dong , Shaochen Zhang , Yihong Gong