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Device free activity recognition and monitoring has become a promising research area with increasing public interest in pattern of life monitoring and chronic health conditions. This paper proposes a novel framework for in-home Wi-Fi…

Other Computer Science · Computer Science 2016-11-08 Qingchao Chen , Bo Tan , Kevin Chetty , Karl Woodbridge

Wireless systems beyond 5G evolve towards embracing both sensing and communication, resulting in increased convergence of the digital and the physical world. The existence of fused digital-physical realms raises critical questions regarding…

Networking and Internet Architecture · Computer Science 2024-02-29 Petar Popovski

By extracting spatial and temporal characteristics in one network, the two-stream ConvNets can achieve the state-of-the-art performance in action recognition. However, such a framework typically suffers from the separately processing of…

Computer Vision and Pattern Recognition · Computer Science 2016-11-17 Yemin Shi , Yonghong Tian , Yaowei Wang , Tiejun Huang

Existing anomaly detection methods for Wireless Sensor Networks (WSNs) generally suffer from insufficient extraction of spatio-temporal correlation features, reliance on either timedomain or frequencydomain information alone, and high…

Networking and Internet Architecture · Computer Science 2026-04-28 Miao Ye , Ziheng Wang , Qiuxiang Jiang , Xingsi Xue , Wenxi Liu , Yu Ning , Cheng Zhu

Wi-Fi sensing technology enables non-intrusive, continuous monitoring of user locations and activities, which supports diverse smart home applications. Since different sensing tasks exhibit contextual relationships, their integration can…

Signal Processing · Electrical Eng. & Systems 2026-03-17 Mengning Li , Wenye Wang

In a wireless network, the efficiency of scheduling algorithms over time-varying channels depends heavily on the accuracy of the Channel State Information (CSI), which is usually quite ``costly'' in terms of consuming network resources.…

Networking and Internet Architecture · Computer Science 2014-04-01 Wenzhuo Ouyang , Atilla Eryilmaz , Ness B. Shroff

Despite the current surge of interest in autonomous robotic systems, robot activity recognition within restricted indoor environments remains a formidable challenge. Conventional methods for detecting and recognizing robotic arms'…

Robotics · Computer Science 2024-05-08 Rojin Zandi , Kian Behzad , Elaheh Motamedi , Hojjat Salehinejad , Milad Siami

Wi-Fi Channel State Information (CSI) enables device-free human activity recognition, but existing multi-user approaches assume a fixed set of known users during both training and inference. This closed-set assumption limits deployment, as…

Machine Learning · Computer Science 2026-04-21 Kemal Bayik , Olayinka Ajayi , Daniel Roggen , Philip Birch

Daily activity recognition has gained prominence due to its applications in context-aware computing. Current methods primarily rely on supervised learning for detecting simple, repetitive activities. This paper introduces LayeredSense, a…

Human-Computer Interaction · Computer Science 2025-02-14 Chak Man Lam

WiFi Channel State Information (CSI)-based human activity recognition (HAR) enables contactless, long-range sensing in spatially constrained environments while preserving visual privacy. However, despite the presence of numerous…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Julian Strohmayer , Martin Kampel

There is growing interest in enabling wireless sensing systems to interpret human motion from unsegmented wireless signals; however, existing CSI-based applications rely heavily on accurate signal segmentation and predefined action labels,…

Networking and Internet Architecture · Computer Science 2026-05-15 Mahmuda Keya , Sneh Pillai , Jiawei Yuan , Kai Zeng , Long Jiao

We consider a binary hypothesis testing problem using Wireless Sensor Networks (WSNs). The decision is made by a fusion center and is based on received data from the sensors. We focus on a spectrum and energy efficient transmission scheme…

Information Theory · Computer Science 2018-11-14 Kobi Cohen , Amir Leshem

Many organisations manage service quality and monitor a large set devices and servers where each entity is associated with telemetry or physical sensor data series. Recently, various methods have been proposed to detect behavioural…

Social and Information Networks · Computer Science 2023-05-10 Len Feremans , Boris Cule , Bart Goethals

Continuous detection of human activities and presence is essential for developing a pervasive interactive smart space. Existing literature lacks robust wireless sensing mechanisms capable of continuously monitoring multiple users'…

Human-Computer Interaction · Computer Science 2023-09-22 Argha Sen , Anirban Das , Swadhin Pradhan , Sandip Chakraborty

Accurate detection of thyroid lesions is a critical aspect of computer-aided diagnosis. However, most existing detection methods perform only one feature extraction process and then fuse multi-scale features, which can be affected by noise…

Computer Vision and Pattern Recognition · Computer Science 2023-05-25 Lingtao Wang , Jianrui Ding , Fenghe Tang , Chunping Ning

The brain is organized in a modular way, serving multiple functionalities. This multiplicity requires that both positive (e.g. excitatory, phase-coherent) and negative (e.g. inhibitory, phase-opposing) interactions take place across brain…

Neurons and Cognition · Quantitative Biology 2019-07-29 Assaf Almog , Ori Roethler , Renate Buijink , Stephan Michel , Johanna H Meijer , Jos H. T. Rohling , Diego Garlaschelli

We introduce a novel dataset for multi-robot activity recognition (MRAR) using two robotic arms integrating WiFi channel state information (CSI), video, and audio data. This multimodal dataset utilizes signals of opportunity, leveraging…

Robotics · Computer Science 2025-02-18 Kian Behzad , Rojin Zandi , Elaheh Motamedi , Hojjat Salehinejad , Milad Siami

The application of Compresses Sensing is a promising physical layer technology for the joint activity and data detection of signals. Detecting the activity pattern correctly has severe impact on the system performance and is therefore of…

Information Theory · Computer Science 2014-04-04 Fabian Monsees , Carsten Bockelmann , Dirk Wübben , Armin Dekorsy

Unlike the sparse label action detection task, where a single action occurs in each timestamp of a video, in a dense multi-label scenario, actions can overlap. To address this challenging task, it is necessary to simultaneously learn (i)…

Computer Vision and Pattern Recognition · Computer Science 2024-06-11 Faegheh Sardari , Armin Mustafa , Philip J. B. Jackson , Adrian Hilton

WiFi-based sensing has aroused immense attention over recent years. The rationale is that the signal fluctuations caused by humans carry the information of human behavior which can be extracted from the channel state information of WiFi.…

Machine Learning · Computer Science 2021-11-30 Xie Zhang , Chengpei Tang , Yasong An , Kang Yin