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Anomaly detection is critical in the smart industry for preventing equipment failure, reducing downtime, and improving safety. Internet of Things (IoT) has enabled the collection of large volumes of data from industrial machinery, providing…

The ability to detect anomalies in time series is considered highly valuable in numerous application domains. The sequential nature of time series objects is responsible for an additional feature complexity, ultimately requiring specialized…

机器学习 · 计算机科学 2021-03-01 Gabriel Rodriguez Garcia , Gabriel Michau , Mélanie Ducoffe , Jayant Sen Gupta , Olga Fink

Time-series anomaly detection plays an important role in engineering processes, like development, manufacturing and other operations involving dynamic systems. These processes can greatly benefit from advances in the field, as…

机器学习 · 计算机科学 2024-11-22 Lucas Correia , Jan-Christoph Goos , Philipp Klein , Thomas Bäck , Anna V. Kononova

Deep generative models for anomaly detection in multivariate time-series are typically trained by maximizing data likelihood. However, likelihood in observation space measures marginal density rather than conformity to structured temporal…

人工智能 · 计算机科学 2026-03-13 David Baumgartner , Eliezer de Souza da Silva , Iñigo Urteaga

With the rise of deep learning models in the field of computer vision, new possibilities for their application in industrial processes proves to return great benefits. Nevertheless, the actual fit of machine learning for highly standardised…

计算机视觉与模式识别 · 计算机科学 2024-09-04 Jibinraj Antony , Florian Schlather , Georgij Safronov , Markus Schmitz , Kristof Van Laerhoven

Time series anomaly detection is an important process for system monitoring and model switching, among other applications in cyber-physical systems. In this document, we present a fast subspace method for time series anomaly detection, with…

系统与控制 · 电气工程与系统科学 2022-05-23 Fredy Vides , Esteban Segura , Carlos Vargas-Agüero

Deep learning models usually require a huge amount of data. However, these large datasets are not always attainable. This is common in many challenging NLP tasks. Consider Neural Machine Translation, for instance, where curating such large…

计算与语言 · 计算机科学 2020-07-09 Zaid Alyafeai , Maged Saeed AlShaibani , Irfan Ahmad

Organizations rely heavily on time series metrics to measure and model key aspects of operational and business performance. The ability to reliably detect issues with these metrics is imperative to identifying early indicators of major…

机器学习 · 计算机科学 2020-11-11 Sayan Chakraborty , Smit Shah , Kiumars Soltani , Anna Swigart , Luyao Yang , Kyle Buckingham

Given the scarcity of anomalies in real-world applications, the majority of literature has been focusing on modeling normality. The learned representations enable anomaly detection as the normality model is trained to capture certain key…

机器学习 · 计算机科学 2022-07-05 Feng Xue , Weizhong Yan

The anomaly detection of time series is a hotspot of time series data mining. The own characteristics of different anomaly detectors determine the abnormal data that they are good at. There is no detector can be optimizing in all types of…

机器学习 · 统计学 2019-07-19 Hui Ye , Xiaopeng Ma , Qingfeng Pan , Huaqiang Fang , Hang Xiang , Tongzhen Shao

We introduce a data-driven anomaly detection framework using a manufacturing dataset collected from a factory assembly line. Given heterogeneous time series data consisting of operation cycle signals and sensor signals, we aim at…

人工智能 · 计算机科学 2022-02-11 Kyeong-Joong Jeong , Jin-Duk Park , Kyusoon Hwang , Seong-Lyun Kim , Won-Yong Shin

Visual defect assessment is a form of anomaly detection. This is very relevant in finding faults such as cracks and markings in various surface inspection tasks like pavement and automotive parts. The task involves detection of…

计算机视觉与模式识别 · 计算机科学 2019-05-31 Manpreet Singh Minhas , John Zelek

The rapid increase in the volume of data increased the size and complexity of the deep learning models. These models are now more resource-intensive and time-consuming for training than ever. This paper presents a quantum transfer learning…

量子物理 · 物理学 2024-09-04 Sounak Bhowmik , Himanshu Thapliyal

Unsupervised fault detection in multivariate time series plays a vital role in ensuring the stable operation of complex systems. Traditional methods often assume that normal data follow a single Gaussian distribution and identify anomalies…

机器学习 · 计算机科学 2025-07-01 Hong Liu , Xiuxiu Qiu , Yiming Shi , Miao Xu , Zelin Zang , Zhen Lei

Anomaly detection is the task of detecting data which differs from the normal behaviour of a system in a given context. In order to approach this problem, data-driven models can be learned to predict current or future observations.…

机器学习 · 计算机科学 2020-10-30 Benedikt Eiteneuer , Oliver Niggemann

When applying deep learning to remote sensing data in archaeological research, a notable obstacle is the limited availability of suitable datasets for training models. The application of transfer learning is frequently employed to mitigate…

计算机视觉与模式识别 · 计算机科学 2023-10-20 Gregory Sech , Paolo Soleni , Wouter B. Verschoof-van der Vaart , Žiga Kokalj , Arianna Traviglia , Marco Fiorucci

For modern industrial applications, accurately detecting and diagnosing anomalies in multivariate time series data is essential. Despite such need, most state-of-the-art methods often prioritize detection performance over model…

机器学习 · 计算机科学 2024-10-31 Minha Kim , Kishor Kumar Bhaumik , Amin Ahsan Ali , Simon S. Woo

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

Anomaly detection (AD) is a crucial machine learning task that aims to learn patterns from a set of normal training samples to identify abnormal samples in test data. Most existing AD studies assume that the training and test data are drawn…

计算机视觉与模式识别 · 计算机科学 2023-09-06 Tri Cao , Jiawen Zhu , Guansong Pang

Distance metric learning (DML) aims to find an appropriate way to reveal the underlying data relationship. It is critical in many machine learning, pattern recognition and data mining algorithms, and usually require large amount of label…

机器学习 · 统计学 2018-11-13 Yong Luo , Yonggang Wen , Ling-Yu Duan , Dacheng Tao