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Anomalies represent deviations from the intended system operation and can lead to decreased efficiency as well as partial or complete system failure. As the causes of anomalies are often unknown due to complex system dynamics, efficient…

Machine Learning · Computer Science 2021-08-31 Benjamin Lindemann , Benjamin Maschler , Nada Sahlab , Michael Weyrich

The advances in deep neural networks (DNN) have significantly enhanced real-time detection of anomalous data in IoT applications. However, the complexity-accuracy-delay dilemma persists: complex DNN models offer higher accuracy, but typical…

Machine Learning · Computer Science 2021-08-21 Mao V. Ngo , Tie Luo , Tony Q. S. Quek

A real-time autoencoder-based anomaly detection system using semi-supervised machine learning has been developed for the online Data Quality Monitoring system of the electromagnetic calorimeter of the CMS detector at the CERN LHC. A novel…

Instrumentation and Detectors · Physics 2024-07-31 Abhirami Harilal , Kyungmin Park , Manfred Paulini

Unsupervised anomaly discovery in stream data is a research topic with many practical applications. However, in many cases, it is not easy to collect enough training data with labeled anomalies for supervised learning of an anomaly detector…

Neural and Evolutionary Computing · Computer Science 2021-03-10 Piotr S. Maciąg , Marzena Kryszkiewicz , Robert Bembenik , Jesus L. Lobo , Javier Del Ser

Anomaly detection in industrial systems is crucial for preventing equipment failures, ensuring risk identification, and maintaining overall system efficiency. Traditional monitoring methods often rely on fixed thresholds and empirical…

Machine Learning · Computer Science 2024-04-26 Sarala Naidu , Ning Xiong

Autonomous aerial surveillance using drone feed is an interesting and challenging research domain. To ensure safety from intruders and potential objects posing threats to the zone being protected, it is crucial to be able to distinguish…

Image and Video Processing · Electrical Eng. & Systems 2020-07-22 Sayeed Shafayet Chowdhury , Kaji Mejbaul Islam , Rouhan Noor

Today's cyber-world is vastly multivariate. Metrics collected at extreme varieties demand multivariate algorithms to properly detect anomalies. However, forecast-based algorithms, as widely proven approaches, often perform sub-optimally or…

Machine Learning · Computer Science 2022-01-14 Lan Wang , Yusan Lin , Yuhang Wu , Huiyuan Chen , Fei Wang , Hao Yang

Machine learning offers potential solutions to current issues in industrial systems in areas such as quality control and predictive maintenance, but also faces unique barriers in industrial applications. An ongoing challenge is extreme…

Machine Learning · Computer Science 2026-01-15 Lesley Wheat , Martin v. Mohrenschildt , Saeid Habibi

Anomaly detection (AD) in a surveillance scenario is an emerging and challenging field of research. For autonomous vehicles like drones or cars, it is immensely important to distinguish between normal and abnormal states in real-time.…

Computer Vision and Pattern Recognition · Computer Science 2020-07-15 Sayeed Shafayet Chowdhury , Kazi Mejbaul Islam , Rouhan Noor

Anomaly detection is the process of finding data points that deviate from a baseline. In a real-life setting, anomalies are usually unknown or extremely rare. Moreover, the detection must be accomplished in a timely manner or the risk of…

Machine Learning · Computer Science 2019-04-26 Mariem Ben Fadhel , Kofi Nyarko

3D Anomaly Detection (AD) has shown great potential in detecting anomalies or defects of high-precision industrial products. However, existing methods are typically trained in a class-specific manner and also lack the capability of learning…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Haoquan Lu , Hanzhe Liang , Jie Zhang , Chenxi Hu , Jinbao Wang , Can Gao

Anomaly detection in videos has been attracting an increasing amount of attention. Despite the competitive performance of recent methods on benchmark datasets, they typically lack desirable features such as modularity, cross-domain…

Computer Vision and Pattern Recognition · Computer Science 2021-03-23 Keval Doshi , Yasin Yilmaz

As modern software systems continue to grow in terms of complexity and volume, anomaly detection on multivariate monitoring metrics, which profile systems' health status, becomes more and more critical and challenging. In particular, the…

Software Engineering · Computer Science 2023-08-22 Jinyang Liu , Tianyi Yang , Zhuangbin Chen , Yuxin Su , Cong Feng , Zengyin Yang , Michael R. Lyu

In modern manufacturing, Visual Anomaly Detection (VAD) is essential for automated inspection and consistent product quality. Yet, increasingly dynamic and flexible production environments introduce key challenges: First, frequent product…

Machine Learning · Computer Science 2025-12-16 Haoyu Ren , Kay Koehle , Kirill Dorofeev , Darko Anicic

Anomaly detection aims to distinguish abnormal instances that deviate significantly from the majority of benign ones. As instances that appear in the real world are naturally connected and can be represented with graphs, graph neural…

Machine Learning · Computer Science 2023-05-24 Sheng Tian , Jihai Dong , Jintang Li , Wenlong Zhao , Xiaolong Xu , Baokun wang , Bowen Song , Changhua Meng , Tianyi Zhang , Liang Chen

This paper describes the architecture and the fundamental methodology of an anomaly detector, which by continuously monitoring Simple Network Management Protocol data and by processing it as complex-events, is able to timely recognize…

Cryptography and Security · Computer Science 2021-06-29 Massimiliano Leone Itria , Enrico Schiavone , Nicola Nostro

In our digital universe nowadays, enormous amount of data are produced in a streaming manner in a variety of application areas. These data are often unlabelled. In this case, identifying infrequent events, such as anomalies, poses a great…

Machine Learning · Computer Science 2023-09-07 Jin Li , Kleanthis Malialis , Marios M. Polycarpou

Fog and mobile edge computing (MEC) will play a key role in the upcoming fifth generation (5G) mobile networks to support decentralized applications, data analytics and management into the network itself by using a highly distributed…

Wind turbine reliability is critical to the growing renewable energy sector, where early fault detection significantly reduces downtime and maintenance costs. This paper introduces a novel ensemble-based deep learning framework for…

Machine Learning · Computer Science 2025-10-20 Rekha R Nair , Tina Babu , Alavikunhu Panthakkan , Balamurugan Balusamy , Wathiq Mansoor

Anomaly detection deals with detecting deviations from established patterns within data. It has various applications like autonomous driving, predictive maintenance, and medical diagnosis. To improve anomaly detection accuracy, transfer…

Computer Vision and Pattern Recognition · Computer Science 2024-06-19 Siddhant Shete , Dennis Mronga , Ankita Jadhav , Frank Kirchner