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Detecting anomalies in dynamic graphs is a vital task, with numerous practical applications in areas such as security, finance, and social media. Previous network embedding based methods have been mostly focusing on learning good node…

Machine Learning · Computer Science 2020-05-26 Lei Cai , Zhengzhang Chen , Chen Luo , Jiaping Gui , Jingchao Ni , Ding Li , Haifeng Chen

Recently, deep learning has represented an important research trend in human activity recognition (HAR). In particular, deep convolutional neural networks (CNNs) have achieved state-of-the-art performance on various HAR datasets. For deep…

Computer Vision and Pattern Recognition · Computer Science 2020-06-16 Xin Cheng , Lei Zhang , Yin Tang , Yue Liu , Hao Wu , Jun He

Last year, IEEE 802.11 Extremely High Throughput Study Group (EHT Study Group) was established to initiate discussions on new IEEE 802.11 features. Coordinated control methods of the access points (APs) in the wireless local area networks…

Signal Processing · Electrical Eng. & Systems 2019-05-20 Kota Nakashima , Shotaro Kamiya , Kazuki Ohtsu , Koji Yamamoto , Takayuki Nishio , Masahiro Morikura

Robust and computationally efficient anomaly detection in videos is a problem in video surveillance systems. We propose a technique to increase robustness and reduce computational complexity in a Convolutional Neural Network (CNN) based…

Machine Learning · Computer Science 2019-11-01 Usama Muneeb , Erdem Koyuncu , Yasaman Keshtkarjahromi , Hulya Seferoglu , Mehmet Fatih Erden , Ahmet Enis Cetin

Recent advancements in machine learning algorithms, especially the development of Deep Neural Networks (DNNs) have transformed the landscape of Artificial Intelligence (AI). With every passing day, deep learning based methods are applied to…

Neural and Evolutionary Computing · Computer Science 2020-08-31 Parth Mannan , Ananda Samajdar , Tushar Krishna

Radio spectrum monitoring in contested environments motivates the need for reliable automatic signal classification technology. Prior work highlights deep learning as a promising approach, but existing models depend on brute-force Doppler…

Signal Processing · Electrical Eng. & Systems 2025-11-19 Avi Bagchi , Dwight Hutchenson

Convolutional neural network (CNN) has drawn increasing interest in visual tracking owing to its powerfulness in feature extraction. Most existing CNN-based trackers treat tracking as a classification problem. However, these trackers are…

Computer Vision and Pattern Recognition · Computer Science 2017-05-02 Heng Fan , Haibin Ling

Node classification using Graph Neural Networks (GNNs) has been widely applied in various practical scenarios, such as predicting user interests and detecting communities in social networks. However, recent studies have shown that…

Machine Learning · Computer Science 2024-08-14 Shuqi He , Jun Zhuang , Ding Wang , Jun Song

Mobile network operators store an enormous amount of information like log files that describe various events and users' activities. Analysis of these logs might be used in many critical applications such as detecting cyber-attacks, finding…

Machine Learning · Computer Science 2021-10-20 Aryan Mokhtari , Leyla Sadighi , Behnam Bahrak , Mojtaba Eshghie

Mobile networks possess information about the users as well as the network. Such information is useful for making the network end-to-end visible and intelligent. Big data analytics can efficiently analyze user and network information,…

Machine Learning · Computer Science 2018-08-01 Kashif Sultan , Hazrat Ali , Zhongshan Zhang

Spectrum sensing is one of the means of utilizing the scarce source of wireless spectrum efficiently. In this paper, a convolutional neural network (CNN) model employing spectral correlation function which is an effective characterization…

Signal Processing · Electrical Eng. & Systems 2021-04-29 Kürşat Tekbıyık , Özkan Akbunar , Ali Rıza Ekti , Ali Görçin , Güneş Karabulut Kurt , Khalid A. Qaraqe

A Deep Neural Network (DNN) based algorithm is proposed for the detection and classification of faults in industrial plants. The proposed algorithm has the ability to classify faults, especially incipient faults that are difficult to detect…

Machine Learning · Computer Science 2022-12-02 Piyush Agarwal , Jorge Ivan Mireles Gonzalez , Ali Elkamel , Hector Budman

In this work, we investigate the value of employing deep learning for the task of wireless signal modulation recognition. Recently in [1], a framework has been introduced by generating a dataset using GNU radio that mimics the imperfections…

Machine Learning · Computer Science 2018-01-08 Xiaoyu Liu , Diyu Yang , Aly El Gamal

Convolutional Neural Network (CNN) has demonstrated impressive ability to represent hyperspectral images and to achieve promising results in hyperspectral image classification. However, traditional CNN models can only operate convolution on…

Image and Video Processing · Electrical Eng. & Systems 2019-05-16 Sheng Wan , Chen Gong , Ping Zhong , Bo Du , Lefei Zhang , Jian Yang

In this paper, we investigate algorithms for anomaly detection. Previous anomaly detection methods focus on modeling the distribution of non-anomalous data provided during training. However, this does not necessarily ensure the correct…

Machine Learning · Computer Science 2020-05-29 Ziyi Yang , Iman Soltani Bozchalooi , Eric Darve

A novel convolution neural network model, abbreviated NL-CNN is proposed, where nonlinear convolution is emulated in a cascade of convolution + nonlinearity layers. The code for its implementation and some trained models are made publicly…

Machine Learning · Computer Science 2021-02-03 Radu Dogaru , Ioana Dogaru

Near-field channel estimation is a fundamental challenge in the sixth-generation (6G) wireless communication, where extremely large antenna arrays (ELAA) enable near-field communication (NFC) but introduce significant signal processing…

Signal Processing · Electrical Eng. & Systems 2025-05-21 Vu Tung Lam , Do Hai Son , Tran Thi Thuy Quynh , Le Trung Thanh

Traffic prediction is the cornerstone of an intelligent transportation system. Accurate traffic forecasting is essential for the applications of smart cities, i.e., intelligent traffic management and urban planning. Although various methods…

Machine Learning · Computer Science 2021-05-04 Fuxian Li , Jie Feng , Huan Yan , Guangyin Jin , Depeng Jin , Yong Li

In this paper, we use variational recurrent neural network to investigate the anomaly detection problem on graph time series. The temporal correlation is modeled by the combination of recurrent neural network (RNN) and variational inference…

Machine Learning · Computer Science 2022-05-31 Daniel Hsu

To protect an organizations' endpoints from sophisticated cyberattacks, advanced detection methods are required. In this research, we present GCNetOmaly: a graph convolutional network (GCN)-based variational autoencoder (VAE) anomaly…

Cryptography and Security · Computer Science 2023-12-01 Yizhak Vaisman , Gilad Katz , Yuval Elovici , Asaf Shabtai