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In recent years, rapid technological advancements and expanded Internet access have led to a significant rise in anomalies within network traffic and time-series data. Prompt detection of these irregularities is crucial for ensuring service…

Machine Learning · Computer Science 2025-11-10 Mahshid Rezakhani , Tolunay Seyfi , Fatemeh Afghah

Existing research on sensor data anomaly detection for industrial sensor networks still has several inherent limitations. First, most detection models usually consider centralized detection. Thus, all sensor data have to be uploaded to the…

Cryptography and Security · Computer Science 2025-09-19 Tao Yang , Xuefeng Jiang , Wei Li , Peiyu Liu , Jinming Wang , Weijie Hao , Qiang Yang

We propose an outlier robust multivariate time series model which can be used for detecting previously unseen anomalous sounds based on noisy training data. The presented approach doesn't assume the presence of labeled anomalies in the…

Sound · Computer Science 2022-02-07 Wo Jae Lee , Karim Helwani , Arvindh Krishnaswamy , Srikanth Tenneti

Time series anomaly detection is a challenging problem due to the complex temporal dependencies and the limited label data. Although some algorithms including both traditional and deep models have been proposed, most of them mainly focus on…

Machine Learning · Computer Science 2023-03-28 Chaoli Zhang , Tian Zhou , Qingsong Wen , Liang Sun

We develop cloud-assisted remote sensing techniques for enabling distributed consensus estimation of unknown parameters in a given geographic area. We first propose a distributed sensor network virtualization algorithm that searches for,…

Networking and Internet Architecture · Computer Science 2015-01-16 Sherif Abdelwahab , Bechir Hamdaoui , Mohsen Guizani

The surge in real-time data collection across various industries has underscored the need for advanced anomaly detection in both univariate and multivariate time series data. This paper introduces TransNAS-TSAD, a framework that synergizes…

Machine Learning · Computer Science 2024-03-06 Ijaz Ul Haq , Byung Suk Lee , Donna M. Rizzo

Detection of anomaly events is relevant for public safety and requires a combination of fine-grained motion information and contextual events at variable time-scales. To this end, we propose a Multi-Timescale Feature Learning (MTFL) method…

Computer Vision and Pattern Recognition · Computer Science 2025-10-29 Yiling Zhang , Erkut Akdag , Egor Bondarev , Peter H. N. De With

This paper introduces a new methodology for detecting anomalies in time series data, with a primary application to monitoring the health of (micro-) services and cloud resources. The main novelty in our approach is that instead of modeling…

Machine Learning · Computer Science 2020-07-31 Fadhel Ayed , Lorenzo Stella , Tim Januschowski , Jan Gasthaus

Anomaly detection (AD) plays a vital role across a wide range of real-world domains by identifying data instances that deviate from expected patterns, potentially signaling critical events such as system failures, fraudulent activities, or…

Machine Learning · Computer Science 2025-07-11 Amirhossein Sadough , Mahyar Shahsavari , Mark Wijtvliet , Marcel van Gerven

Fault detection is a key challenge in the management of complex systems. In the context of SparkCognition's efforts towards predictive maintenance in large scale industrial systems, this problem is often framed in terms of anomaly detection…

Machine Learning · Computer Science 2024-05-29 Elad Liebman

An anomaly detection method based on deep autoencoders is proposed to address anomalies that often occur in enterprise-level ETL data streams. The study first analyzes multiple types of anomalies in ETL processes, including delays, missing…

Machine Learning · Computer Science 2025-11-04 Xin Chen , Saili Uday Gadgil , Kangning Gao , Yi Hu , Cong Nie

The proliferation of sensors brings an immense volume of spatio-temporal (ST) data in many domains, including monitoring, diagnostics, and prognostics applications. Data curation is a time-consuming process for a large volume of data,…

Several techniques for multivariate time series anomaly detection have been proposed recently, but a systematic comparison on a common set of datasets and metrics is lacking. This paper presents a systematic and comprehensive evaluation of…

Machine Learning · Computer Science 2021-09-24 Astha Garg , Wenyu Zhang , Jules Samaran , Savitha Ramasamy , Chuan-Sheng Foo

Anomaly detection is essential for the safety and reliability of autonomous driving systems. Current methods often focus on detection accuracy but neglect response time, which is critical in time-sensitive driving scenarios. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2025-06-24 Dong Xiao , Guangyao Chen , Peixi Peng , Yangru Huang , Yifan Zhao , Yongxing Dai , Yonghong Tian

In the past years technological advances such as the increasing bandwidth in network infrastructures and new software developments such as message and agent-based systems gave rise to the field of cloud technologies, which have evolved from…

Cryptography and Security · Computer Science 2014-10-13 Guido Schwenk , Sebastian Bach

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…

Quantum Physics · Physics 2024-09-04 Sounak Bhowmik , Himanshu Thapliyal

Many real-world IoT systems, which include a variety of internet-connected sensory devices, produce substantial amounts of multivariate time series data. Meanwhile, vital IoT infrastructures like smart power grids and water distribution…

Machine Learning · Computer Science 2022-01-19 Zekai Chen , Dingshuo Chen , Xiao Zhang , Zixuan Yuan , Xiuzhen Cheng

Anomaly detection in multivariate time series is challenging as heterogeneous subsequence anomalies may occur. Reconstruction-based methods, which focus on learning normal patterns in the frequency domain to detect diverse abnormal…

Machine Learning · Computer Science 2025-05-09 Xingjian Wu , Xiangfei Qiu , Zhengyu Li , Yihang Wang , Jilin Hu , Chenjuan Guo , Hui Xiong , Bin Yang

3D object detection is an essential vision technique for various robotic systems, such as augmented reality and domestic robots. Transformers as versatile network architectures have recently seen great success in 3D point cloud object…

Computer Vision and Pattern Recognition · Computer Science 2024-05-10 Manli Shu , Le Xue , Ning Yu , Roberto Martín-Martín , Caiming Xiong , Tom Goldstein , Juan Carlos Niebles , Ran Xu

Given the rapid development of 3D scanners, point clouds are becoming popular in AI-driven machines. However, point cloud data is inherently sparse and irregular, causing significant difficulties for machine perception. In this work, we…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Shi Qiu , Saeed Anwar , Nick Barnes