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In the last years, several machine learning-based techniques have been proposed to monitor human movements from Wi-Fi channel readings. However, the development of domain-adaptive algorithms that robustly work across different environments…

Signal Processing · Electrical Eng. & Systems 2024-08-27 Francesca Meneghello , Nicolò Dal Fabbro , Domenico Garlisi , Ilenia Tinnirello , Michele Rossi

Human-centered wireless sensing (HCWS) aims to understand the fine-grained environment and activities of a human using the diverse wireless signals around him/her. While the sensed information about a human can be used for many good…

Cryptography and Security · Computer Science 2024-03-12 Wei Sun , Tingjun Chen , Neil Gong

Recent research has shown the potential of deep learning in multi-parametric MRI-based visual pathway (VP) segmentation. However, obtaining labeled data for training is laborious and time-consuming. Therefore, it is crucial to develop…

Image and Video Processing · Electrical Eng. & Systems 2024-01-04 Alou Diakite , Cheng Li , Lei Xie , Yuanjing Feng , Hua Han , Shanshan Wang

Current limitations in wireless modeling and radio frequency (RF)-based AI are primarily driven by a lack of high-quality, measurement-based datasets that connect RF signals to their physical environments. RF heatmaps, the typical form of…

Emerging Technologies · Computer Science 2026-04-03 Steve Blandino , Jelena Senic , Raied Caromi , Samuel Berweger , Anuraag Bodi , Camillo Gentile , Nada Golmie

While fulfilling communication tasks, wireless signals can also be used to sense the environment. Among various types of sensing media, WiFi signals offer advantages such as widespread availability, low hardware cost, and strong robustness…

Computer Vision and Pattern Recognition · Computer Science 2025-12-05 Ruijing Liu , Cunhua Pan , Jiaming Zeng , Hong Ren , Kezhi Wang , Lei Kong , Jiangzhou Wang

Wearable devices enable continuous multi-modal physiological and behavioral monitoring, yet analysis of these data streams faces fundamental challenges including the lack of gold-standard labels and incomplete sensor data. While…

Machine Learning · Statistics 2025-09-22 Howon Ryu , Yuliang Chen , Yacun Wang , Andrea Z. LaCroix , Chongzhi Di , Loki Natarajan , Yu Wang , Jingjing Zou

Recently, Wi-Fi has caught tremendous attention for its ubiquity, and, motivated by Wi-Fi's low cost and privacy preservation, researchers have been putting lots of investigation into its potential on action recognition and even person…

Computer Vision and Pattern Recognition · Computer Science 2017-04-04 Jen-Yin Chang , Kuan-Ying Lee , Yu-Lin Wei , Kate Ching-Ju Lin , Winston Hsu

Deep learning is playing an instrumental role in the design of the next generation of communication systems. In this letter, we address the massive MIMO interconnect's bandwidth constraint relaxation using autoencoders. The autoencoder is…

Signal Processing · Electrical Eng. & Systems 2019-09-20 Messaoud Ahmed Ouameur , Daniel Massicotte

Wi-Fi sensing systems are severely hindered by domain shifts when deployed in unseen real-world environments. While existing methods attempt to tackle this through Unsupervised Domain Adaptation (UDA) or Domain Generalization (DG), they…

Machine Learning · Computer Science 2026-03-16 Ke Xu , Zhiyong Zheng , Hongyuan Zhu , Lei Wang , Jiangtao Wang

The challenge in WiFi-based cross-domain Behavior Recognition lies in the significant interference of domain-specific signals on gesture variation. However, previous methods alleviate this interference by mapping the phase from multiple…

Computer Vision and Pattern Recognition · Computer Science 2025-12-17 Ruobei Zhang , Shengeng Tang , Huan Yan , Xiang Zhang , Jiabao Guo

Weakly-supervised anomaly detection aims at learning an anomaly detector from a limited amount of labeled data and abundant unlabeled data. Recent works build deep neural networks for anomaly detection by discriminatively mapping the normal…

Machine Learning · Computer Science 2021-08-29 Yingjie Zhou , Xucheng Song , Yanru Zhang , Fanxing Liu , Ce Zhu , Lingqiao Liu

Businesses are naturally interested in detecting anomalies in their internal processes, because these can be indicators for fraud and inefficiencies. Within the domain of business intelligence, classic anomaly detection is not very…

Artificial Intelligence · Computer Science 2018-05-01 Timo Nolle , Stefan Luettgen , Alexander Seeliger , Max Mühlhäuser

Automatic emotion recognition is an active research topic with wide range of applications. Due to the high manual annotation cost and inevitable label ambiguity, the development of emotion recognition dataset is limited in both scale and…

Audio and Speech Processing · Electrical Eng. & Systems 2020-09-08 Jingjun Liang , Ruichen Li , Qin Jin

The precise characterization and modeling of Cyber-Physical-Social Systems (CPSS) requires more comprehensive and accurate data, which imposes heightened demands on intelligent sensing capabilities. To address this issue, Crowdsensing…

Computers and Society · Computer Science 2024-01-09 Wansen Wu , Weiyi Yang , Juanjuan Li , Yong Zhao , Zhengqiu Zhu , Bin Chen , Sihang Qiu , Yong Peng , Fei-Yue Wang

The remote sensing image change detection task is an essential method for large-scale monitoring. We propose HSANet, a network that uses hierarchical convolution to extract multi-scale features. It incorporates hybrid self-attention and…

Computer Vision and Pattern Recognition · Computer Science 2025-04-22 Chengxi Han , Xiaoyu Su , Zhiqiang Wei , Meiqi Hu , Yichu Xu

Multi-modal multi-view action recognition is a rapidly growing field in computer vision, offering significant potential for applications in surveillance. However, current datasets often fail to address real-world challenges such as…

Computer Vision and Pattern Recognition · Computer Science 2025-05-08 Trung Thanh Nguyen , Yasutomo Kawanishi , Vijay John , Takahiro Komamizu , Ichiro Ide

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

Sensor and control data of modern mechatronic systems are often available as heterogeneous time series with different sampling rates and value ranges. Suitable classification and regression methods from the field of supervised machine…

Machine Learning · Computer Science 2021-04-09 Karl-Philipp Kortmann , Moritz Fehsenfeld , Mark Wielitzka

This study proposes an automated data mining framework based on autoencoders and experimentally verifies its effectiveness in feature extraction and data dimensionality reduction. Through the encoding-decoding structure, the autoencoder can…

Machine Learning · Computer Science 2024-12-04 Yaxin Liang , Xinshi Li , Xin Huang , Ziqi Zhang , Yue Yao

Wireless Sensor Networks (WSNs) are composed of low powered and resource-constrained wireless sensor nodes that are not capable of performing high-complexity algorithms. Integrating these networks into the Internet of Things (IoT)…

Networking and Internet Architecture · Computer Science 2016-07-14 Gabriel Martins Dias , Cintia Borges Margi , Filipe C. P. de Oliveira , Boris Bellalta