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WiFi-based human sensing has exhibited remarkable potential to analyze user behaviors in a non-intrusive and device-free manner, benefiting applications as diverse as smart homes and healthcare. However, most previous works focus on…

Signal Processing · Electrical Eng. & Systems 2024-03-13 Shuokang Huang , Kaihan Li , Di You , Yichong Chen , Arvin Lin , Siying Liu , Xiaohui Li , Julie A. McCann

The growing adoption of IoT systems in industries like transportation, banking, healthcare, and smart energy has increased reliance on sensor networks. However, anomalies in sensor readings can undermine system reliability, making real-time…

Signal Processing · Electrical Eng. & Systems 2025-06-02 Tanish Baranwal , Arnab Das , Srihari Varada , Santanu Das , Mohammad R. Haider

WiFi-based sensing for human activity recognition (HAR) has recently become a hot topic as it brings great benefits when compared with video-based HAR, such as eliminating the demands of line-of-sight (LOS) and preserving privacy. Making…

Signal Processing · Electrical Eng. & Systems 2022-06-22 Yanling Hao , Zhiyuan Shi , Yuanwei Liu

Speech emotion recognition (SER) models typically rely on costly human-labeled data for training, making scaling methods to large speech datasets and nuanced emotion taxonomies difficult. We present LanSER, a method that enables the use of…

Computation and Language · Computer Science 2023-09-11 Taesik Gong , Josh Belanich , Krishna Somandepalli , Arsha Nagrani , Brian Eoff , Brendan Jou

Human pose estimation is fundamental to intelligent perception in the Internet of Things (IoT), enabling applications ranging from smart healthcare to human-computer interaction. While WiFi-based methods have gained traction, they often…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Yi Dao , Lankai Zhang , Hao Liu , Haiwei Zhang , Wenbo Wang

Video capture is the most extensively utilized human perception source due to its intuitively understandable nature. A desired video capture often requires multiple environmental conditions such as ample ambient-light, unobstructed space,…

Computer Vision and Pattern Recognition · Computer Science 2022-12-29 Xiang Li , Rabih Younes

WiFi sensing has been evolving rapidly in recent years. Empowered by propagation models and deep learning methods, many challenging applications are realized such as WiFi-based human activity recognition and gesture recognition. However, in…

Machine Learning · Computer Science 2023-02-20 Jianfei Yang , Xinyan Chen , Dazhuo Wang , Han Zou , Chris Xiaoxuan Lu , Sumei Sun , Lihua Xie

Because each indoor site has its own radio propagation characteristics, a site survey process is essential to optimize a Wi-Fi ranging strategy for range-based positioning solutions. This paper studies an unsupervised learning technique…

Networking and Internet Architecture · Computer Science 2020-07-14 Jeongsik Choi

WiFi sensing has emerged as a compelling contactless modality for human activity monitoring by capturing fine-grained variations in Channel State Information (CSI). Its ability to operate continuously and non-intrusively while preserving…

Signal Processing · Electrical Eng. & Systems 2025-11-21 Guozhen Zhu , Yuqian Hu , Weihang Gao , Wei-Hsiang Wang , Beibei Wang , K. J. Ray Liu

Anomaly detection in supercomputers is a very difficult problem due to the big scale of the systems and the high number of components. The current state of the art for automated anomaly detection employs Machine Learning methods or…

Machine Learning · Computer Science 2020-07-30 Andrea Borghesi , Andrea Bartolini , Michele Lombardi , Michela Milano , Luca Benini

Word sense induction (WSI), or the task of automatically discovering multiple senses or meanings of a word, has three main challenges: domain adaptability, novel sense detection, and sense granularity flexibility. While current latent…

Computation and Language · Computer Science 2018-11-26 Reinald Kim Amplayo , Seung-won Hwang , Min Song

Wi-Fi sensing has emerged as a versatile tool for tasks such as localization, gesture recognition, and vital-sign monitoring, enabling applications from smart environments to personalized healthcare. However, sensing accuracy often…

Signal Processing · Electrical Eng. & Systems 2026-05-27 Fabian Portner , Francesco Gringoli , Matthias Hollick , Arash Asadi

High-dimensional data in many areas such as computer vision and machine learning tasks brings in computational and analytical difficulty. Feature selection which selects a subset from observed features is a widely used approach for…

Machine Learning · Computer Science 2018-04-10 Kai Han , Yunhe Wang , Chao Zhang , Chao Li , Chao Xu

Wireless fingerprinting refers to a device identification method leveraging hardware imperfections and wireless channel variations as signatures. Beyond physical layer characteristics, recent studies demonstrated that user behaviors could…

Information Theory · Computer Science 2023-08-30 Teng-Hui Huang , Thilini Dahanayaka , Kanchana Thilakarathna , Philip H. W. Leong , Hesham El Gamal

Automatic modulation classification (AMC) is a basic technology in intelligent wireless communication systems. It is important for tasks such as spectrum monitoring, cognitive radio, and secure communications. In recent years, deep learning…

Signal Processing · Electrical Eng. & Systems 2025-08-04 Yunfei Liu , Mingxuan Liu , Wupeng Xie , Xinzhu Liu , Wenxue Liu , Yangang Sun , Xin Qiu , Cui Yuan , Jinhai Li

Recent advances in explainable machine learning have highlighted the potential of sparse autoencoders in uncovering mono-semantic features in densely encoded embeddings. While most research has focused on Large Language Model (LLM)…

Computation and Language · Computer Science 2025-02-04 Daniel Pluth , Yu Zhou , Vijay K. Gurbani

In recent times, various modules such as squeeze-and-excitation, and others have been proposed to improve the quality of features learned from wearable sensor signals. However, these modules often cause the number of parameters to be large,…

Computer Vision and Pattern Recognition · Computer Science 2023-04-03 Ayokunle Olalekan Ige , Mohd Halim Mohd Noor

Mobile robots and autonomous vehicles rely on multi-modal sensor setups to perceive and understand their surroundings. Aside from cameras, LiDAR sensors represent a central component of state-of-the-art perception systems. In addition to…

Computer Vision and Pattern Recognition · Computer Science 2018-04-27 Florian Piewak , Peter Pinggera , Manuel Schäfer , David Peter , Beate Schwarz , Nick Schneider , David Pfeiffer , Markus Enzweiler , Marius Zöllner

WiFi sensing is an emerging technology that utilizes wireless signals for various sensing applications. However, the reliance on supervised learning, the scarcity of labelled data, and the incomprehensible channel state information (CSI)…

Signal Processing · Electrical Eng. & Systems 2024-10-04 B. Barahimi , H. Tabassum , M. Omer , O. Waqar

This work presents a seminal approach for synthesizing images from WiFi Channel State Information (CSI) in through-wall scenarios. Leveraging the strengths of WiFi, such as cost-effectiveness, illumination invariance, and wall-penetrating…

Computer Vision and Pattern Recognition · Computer Science 2025-02-11 Julian Strohmayer , Rafael Sterzinger , Christian Stippel , Martin Kampel