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This paper introduces a hybrid attention and autoencoder (AE) model for unsupervised online anomaly detection in time series. The autoencoder captures local structural patterns in short embeddings, while the attention model learns long-term…

Machine Learning · Computer Science 2024-01-09 Seyed Amirhossein Najafi , Mohammad Hassan Asemani , Peyman Setoodeh

Autonomous driving has received a lot of attention in the automotive industry and is often seen as the future of transportation. Passenger vehicles equipped with a wide array of sensors (e.g., cameras, front-facing radars, LiDARs, and IMUs)…

Machine Learning · Computer Science 2022-05-27 Andrey Pak , Hemanth Manjunatha , Dimitar Filev , Panagiotis Tsiotras

It is time-consuming and expensive to take high-quality or high-resolution electron microscopy (EM) and fluorescence microscopy (FM) images. Taking these images could be even invasive to samples and may damage certain subtleties in the…

Computer Vision and Pattern Recognition · Computer Science 2022-06-06 Yaochen Xie , Yu Ding , Shuiwang Ji

Existing auto-encoder (AE)-based channel state information (CSI) frameworks have focused on a specific configuration of user equipment (UE) and base station (BS), and thus the input and output sizes of the AE are fixed. However, in the…

Information Theory · Computer Science 2024-03-04 Jinhyun So , Hyukjoon Kwon

In order to fully exploit the advantages of massive multiple-input multiple-output (mMIMO), it is critical for the transmitter to accurately acquire the channel state information (CSI). Deep learning (DL)-based methods have been proposed…

Information Theory · Computer Science 2022-04-26 Ziqing Yin , Wei Xu , Renjie Xie , Shaoqing Zhang , Derrick Wing Kwan Ng , Xiaohu You

Deep learning has been widely adopted for channel state information (CSI)-fingerprinting indoor localization systems. These systems usually consist of two main parts, i.e., a positioning network that learns the mapping from high-dimensional…

Signal Processing · Electrical Eng. & Systems 2023-10-11 Bowen Zhang , Houssem Sifaou , Geoffrey Ye Li

Accurate and efficient channel state information (CSI) feedback is crucial for unlocking the substantial spectral efficiency gains of extremely large-scale MIMO (XL-MIMO) systems in future 6G networks. However, the combination of near-field…

Information Theory · Computer Science 2025-08-04 Zhenyu Liu , Yi Ma , Rahim Tafazolli

Deep learning is promising to enhance the accuracy and reduce the overhead of channel state information (CSI) feedback, which can boost the capacity of frequency division duplex (FDD) massive multiple-input multiple-output (MIMO) systems.…

Signal Processing · Electrical Eng. & Systems 2026-02-09 Haoyu Wang , Zhi Sun , Shuangfeng Han , Xiaoyun Wang , Zhaocheng Wang

Deep neural networks (DNNs) have become a popular approach for wireless localization based on channel state information (CSI). A common practice is to use the raw CSI in the input and allow the network to learn relevant channel…

Signal Processing · Electrical Eng. & Systems 2022-12-07 Artan Salihu , Stefan Schwarz , Markus Rupp

ElectrodeNet, a deep learning based sound coding strategy for the cochlear implant (CI), is proposed to emulate the advanced combination encoder (ACE) strategy by replacing the conventional envelope detection using various artificial neural…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-29 Enoch Hsin-Ho Huang , Rong Chao , Yu Tsao , Chao-Min Wu

This study presents a parameter-light, low-complexity artificial intelligence/machine learning (AI/ML) model that enhances channel state information (CSI) feedback in wireless systems by jointly exploiting temporal, spatial, and frequency…

Signal Processing · Electrical Eng. & Systems 2025-05-08 Aakash Saini , Yunchou Xing , Jee Hyun Kim , Amir Ahmadian Tehrani , Wolfgang Gerstacker

This paper introduces Associative Compression Networks (ACNs), a new framework for variational autoencoding with neural networks. The system differs from existing variational autoencoders (VAEs) in that the prior distribution used to model…

Neural and Evolutionary Computing · Computer Science 2018-04-27 Alex Graves , Jacob Menick , Aaron van den Oord

The ubiquitous use of IoT and machine learning applications is creating large amounts of data that require accurate and real-time processing. Although edge-based smart data processing can be enabled by deploying pretrained models, the…

Machine Learning · Computer Science 2021-09-15 Yinghan Long , Indranil Chakraborty , Gopalakrishnan Srinivasan , Kaushik Roy

Massive MIMO systems can enhance spectral and energy efficiency, but they require accurate channel state information (CSI), which becomes costly as the number of antennas increases. While machine learning (ML) autoencoders show promise for…

Signal Processing · Electrical Eng. & Systems 2025-11-12 Hao Luo , Saeed R. Khosravirad , Ahmed Alkhateeb

Due to the over-fitting problem caused by imbalance samples, there is still room to improve the performance of data-driven automatic modulation classification (AMC) in noisy scenarios. By fully considering the signal characteristics, an AMC…

Signal Processing · Electrical Eng. & Systems 2022-03-08 Hao Shi , Qi Peng , Yiqi Zhuang

Active infrared thermography (AIRT) became a crucial tool in aerospace non-destructive testing (NDT), enabling the detection of hidden defects and anomalies in materials by capturing thermal responses over time. In AIRT, autoencoders are…

Signal Processing · Electrical Eng. & Systems 2025-12-30 Mohammed Salah , Eman Ouda , Stefano Sfarra , Davor Svetinovic , Yusra Abdulrahman

Fluid antenna systems (FAS) offer remarkable spatial flexibility but face significant challenges in acquiring high-resolution channel state information (CSI), leading to considerable overhead. To address this issue, we propose CANet, a…

Signal Processing · Electrical Eng. & Systems 2026-01-28 Yanliang Jin , Runze Yu , Yuan Gao , Shengli Liu , Xiaoli Chu , Kai-Kit Wong , Chan-Byoung Chae

The recent advancement of deep learning techniques has made great progress on hyperspectral image super-resolution (HSI-SR). Yet the development of unsupervised deep networks remains challenging for this task. To this end, we propose a…

Image and Video Processing · Electrical Eng. & Systems 2020-08-04 Jing Yao , Danfeng Hong , Jocelyn Chanussot , Deyu Meng , Xiaoxiang Zhu , Zongben Xu

Extremely large-scale massive multiple-input multiple-output (XL-MIMO) is one of the key technologies for next-generation wireless communication systems. However, acquiring the accurate high-dimensional channel matrix of XL-MIMO remains a…

Signal Processing · Electrical Eng. & Systems 2024-10-21 Shuang shuang Li , Peihao Dong

Deep spiking neural networks (SNNs) have emerged as a potential alternative to traditional deep learning frameworks, due to their promise to provide increased compute efficiency on event-driven neuromorphic hardware. However, to perform…

Neural and Evolutionary Computing · Computer Science 2021-07-28 Souvik Kundu , Gourav Datta , Massoud Pedram , Peter A. Beerel