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Unsupervised Anomaly Detection has become a popular method to detect pathologies in medical images as it does not require supervision or labels for training. Most commonly, the anomaly detection model generates a "normal" version of an…

图像与视频处理 · 电气工程与系统科学 2023-09-26 Felix Meissen , Johannes Paetzold , Georgios Kaissis , Daniel Rueckert

Fault detection for key components in the braking system of freight trains is critical for ensuring railway transportation safety. Despite the frequently employed methods based on deep learning, these fault detectors are highly reliant on…

计算机视觉与模式识别 · 计算机科学 2022-11-29 Yang Zhang , Yang Zhou , Huilin Pan , Bo Wu , Guodong Sun

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 Prognostics and Health Management Data Challenge (PHM) 2016 tracks the health state of components of a semiconductor wafer polishing process. The ultimate goal is to develop an ability to predict the measurement on the wafer surface…

人工智能 · 计算机科学 2025-03-04 Kart-Leong Lim , Rahul Dutta

Hierarchical Federated Learning (HFL) has recently emerged as a promising solution for intelligent decision-making in vehicular networks, helping to address challenges such as limited communication resources, high vehicle mobility, and data…

密码学与安全 · 计算机科学 2025-05-05 M. Saeid HaghighiFard , Sinem Coleri

Deep learning is a kind of feature learning method with strong nonliear feature transformation and becomes more and more important in many fields of artificial intelligence. Deep autoencoder is one representative method of the deep learning…

机器学习 · 计算机科学 2020-02-18 Yongming Li , Yan Lei , Pin Wang , Yuchuan Liu

Given an unsupervised outlier detection (OD) algorithm, how can we optimize its hyperparameter(s) (HP) on a new dataset, without any labels? In this work, we address this challenging hyperparameter optimization for unsupervised OD problem,…

机器学习 · 计算机科学 2022-10-11 Yue Zhao , Leman Akoglu

Federated learning is a machine learning paradigm in which multiple devices collaboratively train a model under the supervision of a central server while ensuring data privacy. However, its performance is often hindered by redundant,…

计算机视觉与模式识别 · 计算机科学 2026-04-30 Emre Ardıç , Yakup Genç

This paper studies the mixed $H_-/H_{\infty}$ fault detection filtering of It\^o-type nonlinear stochastic systems. Mixed $H_-/H_{\infty}$ filtering combines the system robustness to the external disturbance and the sensitivity to the fault…

最优化与控制 · 数学 2018-12-21 Tianliang Zhang , Feiqi Deng , Weihai Zhang , Bor-Sen Chen

Periodicity detection is a crucial step in time series tasks, including monitoring and forecasting of metrics in many areas, such as IoT applications and self-driving database management system. In many of these applications, multiple…

机器学习 · 计算机科学 2021-03-09 Qingsong Wen , Kai He , Liang Sun , Yingying Zhang , Min Ke , Huan Xu

Uninterruptible power supply is the main motive of power utility companies that motivate them for identifying and locating the different types of faults as quickly as possible to protect the power system prevent complete power black outs…

系统与控制 · 计算机科学 2016-09-29 P. K. Ray , B. K. Panigrahi , P. K. Rout , A. Mohanty , H. Dubey

Sensor and control data of modern mechatronic systems are often available as heterogeneous time series with different sampling rates and value ranges. Suitable classification and regression methods from the field of supervised machine…

机器学习 · 计算机科学 2021-04-09 Karl-Philipp Kortmann , Moritz Fehsenfeld , Mark Wielitzka

In semiconductor manufacturing, wafer defect maps (WDMs) play a crucial role in diagnosing issues and enhancing process yields by revealing critical defect patterns. However, accurately categorizing WDM defects presents significant…

计算机视觉与模式识别 · 计算机科学 2024-11-19 Yin-Yin Bao , Er-Chao Li , Hong-Qiang Yang , Bin-Bin Jia

The current trend of automating inspections at substations has sparked a surge in interest in the field of transformer image recognition. However, due to restrictions in the number of parameters in existing models, high-resolution images…

计算机视觉与模式识别 · 计算机科学 2023-12-08 Siyi Zhang , Cheng Liu , Xiang Li , Xin Zhai , Zhen Wei , Sizhe Li , Xun Ma

This study explores the concept of high-density anomalies. As opposed to the traditional concept of anomalies as isolated occurrences, high-density anomalies are deviant cases positioned in the most normal regions of the data space. Such…

机器学习 · 计算机科学 2021-04-06 Ralph Foorthuis

A fault detection method for power conversion circuits using thermal images and a convolutional autoencoder is presented. The autoencoder is trained on thermal images captured from a commercial power module at randomly varied load currents…

图像与视频处理 · 电气工程与系统科学 2025-05-14 Noboru Katayama , Rintaro Ishida

Hyperspectral image fusion (HIF) is critical to a wide range of applications in remote sensing and many computer vision applications. Most traditional HIF methods assume that the observation model is predefined or known. However, in real…

计算机视觉与模式识别 · 计算机科学 2021-04-01 Wu Wang , Yue Huang , Xinhao Ding

This paper presents a new learning based Stochastic Hybrid System (LSHS) framework designed for the detection and classification of contingencies in modern power systems. Unlike conventional monitoring schemes, the proposed approach is…

系统与控制 · 电气工程与系统科学 2025-12-30 Hamid Varmazyari , Masoud H. Nazari

The intelligent fault diagnosis of rotating mechanical equipment usually requires a large amount of labeled sample data. However, in practical industrial applications, acquiring enough data is both challenging and expensive in terms of time…

机器学习 · 计算机科学 2025-09-12 Hanyang Wang , Yuxuan Yang , Hongjun Wang , Lihui Wang

This paper addresses the dual challenge of improving anomaly detection and signal integrity in high-speed dynamic random access memory signals. To achieve this, we propose a joint training framework that integrates an autoencoder with a…

机器学习 · 计算机科学 2025-06-24 Muhammad Usama , Hee-Deok Jang , Soham Shanbhag , Yoo-Chang Sung , Seung-Jun Bae , Dong Eui Chang