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Existing anomaly detection methods for Wireless Sensor Networks (WSNs) generally suffer from insufficient extraction of spatio-temporal correlation features, reliance on either timedomain or frequencydomain information alone, and high…

网络与互联网体系结构 · 计算机科学 2026-04-28 Miao Ye , Ziheng Wang , Qiuxiang Jiang , Xingsi Xue , Wenxi Liu , Yu Ning , Cheng Zhu

Anomaly detection is a challenging task that frequently arises in practically all areas of industry and science, from fraud detection and data quality monitoring to finding rare cases of diseases and searching for new physics. Most of the…

机器学习 · 计算机科学 2021-11-22 Artem Ryzhikov , Maxim Borisyak , Andrey Ustyuzhanin , Denis Derkach

Consistency regularization has prevailed in semi-supervised semantic segmentation and achieved promising performance. However, existing methods typically concentrate on enhancing the Image-augmentation based Prediction consistency and…

多媒体 · 计算机科学 2025-03-25 Jianjian Yin , Tao Chen , Gensheng Pei , Yazhou Yao , Liqiang Nie , Xiansheng Hua

Anomaly detection in complex industrial processes plays a pivotal role in ensuring efficient, stable, and secure operation. Existing anomaly detection methods primarily focus on analyzing dominant anomalies using the process variables (such…

计算机视觉与模式识别 · 计算机科学 2025-08-05 Gaochang Wu , Yapeng Zhang , Lan Deng , Jingxin Zhang , Tianyou Chai

This paper introduces a hybrid attention and autoencoder (AE) model for unsupervised online anomaly detection in time series. The autoencoder captures local structural patterns in short embeddings, while the attention model learns long-term…

机器学习 · 计算机科学 2024-01-09 Seyed Amirhossein Najafi , Mohammad Hassan Asemani , Peyman Setoodeh

One-class anomaly detection aims to detect objects that do not belong to a predefined normal class. In practice training data lack those anomalous samples; hence state-of-the-art methods are trained to discriminate between normal and…

计算机视觉与模式识别 · 计算机科学 2025-03-10 Romain Hermary , Vincent Gaudillière , Abd El Rahman Shabayek , Djamila Aouada

Stripe-like space target detection (SSTD) is crucial for space situational awareness. Traditional unsupervised methods often fail in low signal-to-noise ratio and variable stripe-like space targets scenarios, leading to weak generalization.…

计算机视觉与模式识别 · 计算机科学 2024-08-12 Zijian Zhu , Ali Zia , Xuesong Li , Bingbing Dan , Yuebo Ma , Hongfeng Long , Kaili Lu , Enhai Liu , Rujin Zhao

Anomaly detection from a driver's perspective when driving is important to autonomous vehicles. As a part of Advanced Driver Assistance Systems (ADAS), it can remind the driver about dangers timely. Compared with traditional studied scenes…

计算机视觉与模式识别 · 计算机科学 2019-05-01 Yuan Yuan , Dong Wang , Qi Wang

The crux of resolving fine-grained visual classification (FGVC) lies in capturing discriminative and class-specific cues that correspond to subtle visual characteristics. Recently, frequency decomposition/transform based approaches have…

计算机视觉与模式识别 · 计算机科学 2025-11-14 Qin Xu , Lili Zhu , Xiaoxia Cheng , Bo Jiang

In surface defect detection, due to the extreme imbalance in the number of positive and negative samples, positive-samples-based anomaly detection methods have received more and more attention. Specifically, reconstruction-based methods are…

计算机视觉与模式识别 · 计算机科学 2023-02-14 Wei Luo , Tongzhi Niu , Lixin Tang , Wenyong Yu , Bin Li

Anomaly detection or outlier is one of the challenging subjects in unsupervised learning . This paper is introduced a student-teacher framework for anomaly detection that its teacher network is enhanced for achieving high-performance…

计算机视觉与模式识别 · 计算机科学 2025-12-23 Mohammad Zolfaghari , Hedieh Sajedi

Hacking and false data injection from adversaries can threaten power grids' everyday operations and cause significant economic loss. Anomaly detection in power grids aims to detect and discriminate anomalies caused by cyber attacks against…

机器学习 · 计算机科学 2023-03-14 Xijuan Sun , Di Wu , Arnaud Zinflou , Benoit Boulet

The core problem in multi-view anomaly detection is to represent local neighborhoods of normal instances consistently across all views. Recent approaches consider a representation of local neighborhood in each view independently, and then…

机器学习 · 计算机科学 2025-12-08 Yang Xu , Hang Zhang , Yixiao Ma , Ye Zhu , Kai Ming Ting

Video anomaly detection is a challenging task because most anomalies are scarce and non-deterministic. Many approaches investigate the reconstruction difference between normal and abnormal patterns, but neglect that anomalies do not…

计算机视觉与模式识别 · 计算机科学 2022-06-28 Guodong Shen , Yuqi Ouyang , Victor Sanchez

Exemplar replay has become an effective strategy for mitigating catastrophic forgetting in federated continual learning (FCL) by retaining representative samples from past tasks. Existing studies focus on designing sample-importance…

机器学习 · 计算机科学 2026-04-13 Zhuang Qi , Ying-Peng Tang , Lei Meng , Guoqing Chao , Lei Wu , Han Yu , Xiangxu Meng

Spatially-adaptive normalization (SPADE) is remarkably successful recently in conditional semantic image synthesis \cite{park2019semantic}, which modulates the normalized activation with spatially-varying transformations learned from…

计算机视觉与模式识别 · 计算机科学 2021-05-06 Zhentao Tan , Dongdong Chen , Qi Chu , Menglei Chai , Jing Liao , Mingming He , Lu Yuan , Gang Hua , Nenghai Yu

Due to the limited availability of anomalous samples for training, video anomaly detection is commonly viewed as a one-class classification problem. Many prevalent methods investigate the reconstruction difference produced by AutoEncoders…

计算机视觉与模式识别 · 计算机科学 2023-03-10 Xiangyu Huang , Caidan Zhao , Chenxing Gao , Lvdong Chen , Zhiqiang Wu

Control Area Network (CAN) is an essential communication protocol that interacts between Electronic Control Units (ECUs) in the vehicular network. However, CAN is facing stringent security challenges due to innate security risks. Intrusion…

人工智能 · 计算机科学 2024-03-18 Pengzhou Cheng , Zongru Wu , Gongshen Liu

The proliferation of IoT devices has significantly increased network vulnerabilities, creating an urgent need for effective Intrusion Detection Systems (IDS). Machine Learning-based IDS (ML-IDS) offer advanced detection capabilities but…

密码学与安全 · 计算机科学 2025-02-12 Elvin Li , Zhengli Shang , Onat Gungor , Tajana Rosing

Video anomaly detection is often seen as one-class classification (OCC) problem due to the limited availability of anomaly examples. Typically, to tackle this problem, an autoencoder (AE) is trained to reconstruct the input with training…

计算机视觉与模式识别 · 计算机科学 2021-10-26 Marcella Astrid , Muhammad Zaigham Zaheer , Jae-Yeong Lee , Seung-Ik Lee