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Anomaly segmentation in high spatial resolution (HSR) remote sensing imagery is aimed at segmenting anomaly patterns of the earth deviating from normal patterns, which plays an important role in various Earth vision applications. However,…

Computer Vision and Pattern Recognition · Computer Science 2023-05-01 Jingtao Li , Xinyu Wang , Hengwei Zhao , Shaoyu Wang , Yanfei Zhong

Detecting surface anomalies of industrial materials poses a significant challenge within a myriad of industrial manufacturing processes. In recent times, various methodologies have emerged, capitalizing on the advantages of employing a…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Simon Thomine , Hichem Snoussi

River water-quality monitoring is increasingly conducted using automated in situ sensors, enabling timelier identification of unexpected values. However, anomalies caused by technical issues confound these data, while the volume and…

Safe operation of machine learning models requires architectures that explicitly delimit their operational ranges. We evaluate the ability of anomaly detection algorithms to provide indicators correlated with degraded model performance. By…

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

This study investigates the adoption and effectiveness of AI-based anomaly detection in cross-provider electronic health record (EHR) environments. It aims to (1) identify the organisational and digital capabilities required for successful…

Computers and Society · Computer Science 2026-04-14 Cao Tram Anh Hoang

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

The problem of sequential anomaly detection is considered, where multiple data sources are monitored in real time and the goal is to identify the "anomalous" ones among them, when it is not possible to sample all sources at all times. A…

Statistics Theory · Mathematics 2022-05-23 Aristomenis Tsopelakos , Georgios Fellouris

This paper presents an autoencoder based unsupervised approach to identify anomaly in an industrial machine using sounds produced by the machine. The proposed framework is trained using log-melspectrogram representations of the sound…

Sound · Computer Science 2021-11-23 Arshdeep Singh , Raju Arvind , Padmanabhan Rajan

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

The number of rooftop photovoltaic (PV) systems has significantly increased in recent years around the globe, including in Australia. This trend is anticipated to continue in the next few years. Given their high share of generation in power…

Machine Learning · Computer Science 2023-01-18 Sahand Karimi-Arpanahi , Ali Pourmousavi

With the increasing proportion of variable renewable energy which owns fluctuation characteristics and the promotion of the Clean Heating policy, the seasonal energy imbalance of the system has been more and more challenging. There is a…

Systems and Control · Electrical Eng. & Systems 2023-07-25 Jing Li , Tianguang Lu , Xinning Yi , Shaorui Wang , Xueqian He

With the widely used smart meters in the energy sector, anomaly detection becomes a crucial mean to study the unusual consumption behaviors of customers, and to discover unexpected events of using energy promptly. Detecting consumption…

Databases · Computer Science 2016-06-21 Xiufeng Liu , Per Sieverts Nielsen

Anomaly Detection is a relevant problem that arises in numerous real-world applications, especially when dealing with images. However, there has been little research for this task in the Continual Learning setting. In this work, we…

Computer Vision and Pattern Recognition · Computer Science 2024-09-09 Davide Dalle Pezze , Eugenia Anello , Chiara Masiero , Gian Antonio Susto

Anomalies refer to data points or events that deviate from normal and homogeneous events, which can include fraudulent activities, network infiltrations, equipment malfunctions, process changes, or other significant but infrequent events.…

Machine Learning · Computer Science 2023-03-20 Ahmed Shoyeb Raihan , Imtiaz Ahmed

Utility-scale solar arrays require specialized inspection methods for detecting faulty panels. Photovoltaic (PV) panel faults caused by weather, ground leakage, circuit issues, temperature, environment, age, and other damage can take many…

Image and Video Processing · Electrical Eng. & Systems 2024-07-02 David F. Ramirez , Deep Pujara , Cihan Tepedelenlioglu , Devarajan Srinivasan , Andreas Spanias

Various Earth anomalies have destroyed the stable, balanced state, resulting in fatalities and serious destruction of property. With the advantages of large-scale and precise observation, high-resolution remote sensing images have been…

Computer Vision and Pattern Recognition · Computer Science 2024-09-10 Jingtao Li , Qian Zhu , Xinyu Wang , Hengwei Zhao , Yanfei Zhong

The complexity and ubiquity of modern computing systems is a fertile ground for anomalies, including security and privacy breaches. In this paper, we propose a new methodology that addresses the practical challenges to implement anomaly…

Cryptography and Security · Computer Science 2020-06-17 Charles F. Gonçalves , Daniel S. Menasché , Alberto Avritzer , Nuno Antunes , Marco Vieira

The goal of anomaly detection is to identify examples that deviate from normal or expected behavior. We tackle this problem for images. We consider a two-phase approach. First, using normal examples, a convolutional autoencoder (CAE) is…

Computer Vision and Pattern Recognition · Computer Science 2020-03-20 Natasa Sarafijanovic-Djukic , Jesse Davis

In recent years, a number of process-based anomaly detection schemes for Industrial Control Systems were proposed. In this work, we provide the first systematic analysis of such schemes, and introduce a taxonomy of properties that are…

Cryptography and Security · Computer Science 2023-06-27 Alessandro Erba , Nils Ole Tippenhauer