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Anomaly detection in time series data, to identify points that deviate from normal behaviour, is a common problem in various domains such as manufacturing, medical imaging, and cybersecurity. Recently, Generative Adversarial Networks (GANs)…

Machine Learning · Computer Science 2025-05-27 Md Abul Bashar , Richi Nayak

The ever-increasing reliance of critical services on network infrastructure coupled with the increased operational complexity of beyond-5G/6G networks necessitate the need for proactive and automated network fault management. The provision…

Networking and Internet Architecture · Computer Science 2025-09-04 Babak Azkaei , Kishor Chandra Joshi , George Exarchakos

Robust anomaly detection is a requirement for monitoring complex modern systems with applications such as cyber-security, fraud prevention, and maintenance. These systems generate multiple correlated time series that are highly seasonal and…

Machine Learning · Computer Science 2019-11-19 Farzaneh Khoshnevisan , Zhewen Fan

Developing efficient time series anomaly detection techniques is important to maintain service quality and provide early alarms. Generative neural network methods are one class of the unsupervised approaches that are achieving increasing…

Machine Learning · Computer Science 2022-10-07 Yueyan Gu , Farrokh Jazizadeh

Radio Access Networks (RANs) for telecommunications represent large agglomerations of interconnected hardware consisting of hundreds of thousands of transmitting devices (cells). Such networks undergo frequent and often heterogeneous…

Machine Learning · Computer Science 2024-01-25 Igor Kozlov , Dmitriy Rivkin , Wei-Di Chang , Di Wu , Xue Liu , Gregory Dudek

Anomaly detection in time series data is a significant problem faced in many application areas such as manufacturing, medical imaging and cyber-security. Recently, Generative Adversarial Networks (GAN) have gained attention for generation…

Computer Vision and Pattern Recognition · Computer Science 2021-01-15 Md Abul Bashar , Richi Nayak

Time series anomalies can offer information relevant to critical situations facing various fields, from finance and aerospace to the IT, security, and medical domains. However, detecting anomalies in time series data is particularly…

Machine Learning · Computer Science 2020-11-17 Alexander Geiger , Dongyu Liu , Sarah Alnegheimish , Alfredo Cuesta-Infante , Kalyan Veeramachaneni

The use of learning-based methods for optimizing cellular radio access networks (RAN) has received increasing attention in recent years. This coincides with a rapid increase in the number of cell sites worldwide, driven largely by dramatic…

Machine Learning · Computer Science 2024-08-14 Jimmy Li , Igor Kozlov , Di Wu , Xue Liu , Gregory Dudek

Anomaly detection is a significant problem faced in several research areas. Detecting and correctly classifying something unseen as anomalous is a challenging problem that has been tackled in many different manners over the years.…

Machine Learning · Computer Science 2021-09-15 Federico Di Mattia , Paolo Galeone , Michele De Simoni , Emanuele Ghelfi

Generative adversarial networks (GANs) are able to model the complex highdimensional distributions of real-world data, which suggests they could be effective for anomaly detection. However, few works have explored the use of GANs for the…

Machine Learning · Computer Science 2019-05-03 Houssam Zenati , Chuan Sheng Foo , Bruno Lecouat , Gaurav Manek , Vijay Ramaseshan Chandrasekhar

The Radio Access Network (RAN) is a critical component of modern telecommunications infrastructure, currently evolving towards disaggregated and open architectures. These advancements are pivotal for integrating intelligent, data-driven…

Networking and Internet Architecture · Computer Science 2025-09-18 Abdelrahim Ahmad , Peizheng Li , Robert Piechocki , Rui Inacio

The prevalence of networked sensors and actuators in many real-world systems such as smart buildings, factories, power plants, and data centers generate substantial amounts of multivariate time series data for these systems. The rich sensor…

Machine Learning · Computer Science 2019-01-17 Dan Li , Dacheng Chen , Lei Shi , Baihong Jin , Jonathan Goh , See-Kiong Ng

Robust Anomaly Detection (AD) on time series data is a key component for monitoring many complex modern systems. These systems typically generate high-dimensional time series that can be highly noisy, seasonal, and inter-correlated. This…

Machine Learning · Computer Science 2020-07-29 Farzaneh Khoshnevisan , Zhewen Fan , Vitor R. Carvalho

The deployment of AI agents within legacy Radio Access Network (RAN) infrastructure poses significant safety and reliability challenges for future 6G networks. This paper presents a novel Edge AI framework for autonomous network…

Signal Processing · Electrical Eng. & Systems 2025-08-28 Abdelaziz Salama , Zeinab Nezami , Mohammed M. H. Qazzaz , Maryam Hafeez , Syed Ali Raza Zaidi

Despite the many attempts and approaches for anomaly detection explored over the years, the automatic detection of rare events in data communication networks remains a complex problem. In this paper we introduce Net-GAN, a novel approach to…

Artificial Intelligence · Computer Science 2020-10-19 Gastón García González , Pedro Casas , Alicia Fernández , Gabriel Gómez

Quantum computing may offer new approaches for advancing machine learning, including in complex tasks such as anomaly detection in network traffic. In this paper, we introduce a quantum generative adversarial network (QGAN) architecture for…

Machine Learning · Computer Science 2025-05-20 Wajdi Hammami , Soumaya Cherkaoui , Shengrui Wang

Anomaly detection has become an indispensable tool for modern society, applied in a wide range of applications, from detecting fraudulent transactions to malignant brain tumours. Over time, many anomaly detection techniques have been…

Machine Learning · Computer Science 2021-10-26 Mikael Sabuhi , Ming Zhou , Cor-Paul Bezemer , Petr Musilek

Ensuring power grid resilience requires the timely and unsupervised detection of anomalies in synchrophasor data streams. We introduce T-BiGAN, a novel framework that integrates window-attention Transformers within a bidirectional…

Machine Learning · Computer Science 2026-04-14 Muhammad Imran Hossain , Jignesh Solanki , Sarika Khushlani Solanki

In many anomaly detection tasks, where anomalous data rarely appear and are difficult to collect, training using only normal data is important. Although it is possible to manually create anomalous data using prior knowledge, they may be…

Machine Learning · Computer Science 2022-05-10 Hironori Murase , Kenji Fukumizu

In order to make Internet connections ubiquitous and autonomous in our daily lives, maximizing the utilization of radio resources and social information is one of the major research topics in future mobile communication technologies. Fog…

Information Theory · Computer Science 2017-07-24 Haijun Zhang , Yu Qiu , Xiaoli Chu , Keping Long , Victor C. M. Leung
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