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This paper considers the real-time power quality monitoring in power grid systems. The goal is to detect the occurrence of disturbances in the nominal sinusoidal voltage/current signal as quickly as possible such that protection measures…

Systems and Control · Computer Science 2016-01-26 Shang Li , Xiaodong Wang

The wireless channel changes continuously with time and frequency and the block-fading assumption, which is popular in many theoretical analyses, never holds true in practical scenarios. This discrepancy is critical for user activity…

Information Theory · Computer Science 2024-10-23 Jianan Bai , Erik G. Larsson

Monitoring real-time air quality is essential for safeguarding public health and fostering social progress. However, the widespread deployment of air quality monitoring stations is constrained by their significant costs. To address this…

Machine Learning · Computer Science 2025-07-03 Qiongyan Wang , Yutong Xia , Siru ZHong , Weichuang Li , Yuankai Wu , Shifen Cheng , Junbo Zhang , Yu Zheng , Yuxuan Liang

Smart metering of domestic water consumption to continuously monitor the usage of different appliances has been shown to have an impact on people's behavior towards water conservation. However, the installation of multiple sensors to…

Signal Processing · Electrical Eng. & Systems 2023-01-10 Pavlos Pavlou , Stelios Vrachimis , Demetrios G. Eliades , Marios M. Polycarpou

Learning-based environmental sound recognition has emerged as a crucial method for ultra-low-power environmental monitoring in biological research and city-scale sensing systems. These systems usually operate under limited resources and are…

Sound · Computer Science 2025-03-24 Le Zhang , Quanling Zhao , Run Wang , Shirley Bian , Onat Gungor , Flavio Ponzina , Tajana Rosing

This demo paper introduces AirSense-R, a privacy-preserving mobile application that delivers real-time, pollution-aware recommendations for urban points of interest (POIs). By merging live air quality data from AirSENCE sensor networks in…

Constructing high resolution air pollution maps at lower cost is crucial for sustainable city management and public health risk assessment. However, traditional fixed-site monitoring lacks spatial coverage, while mobile low-cost sensors…

Machine Learning · Computer Science 2025-03-18 Rui Xu , Dawen Yao , Yuzhuang Pian , Ruhui Cao , Yixin Fu , Xinru Yang , Ting Gan , Yonghong Liu

In this article, we present a distributed framework for collecting and analyzing environmental and location data recorded by human users (carriers) with the use of portable sensors. We demonstrate the data mining analysis potential among…

Human-Computer Interaction · Computer Science 2013-08-02 John Gekas

The current gold standard for human activity recognition (HAR) is based on the use of cameras. However, the poor scalability of camera systems renders them impractical in pursuit of the goal of wider adoption of HAR in mobile computing…

Computer Vision and Pattern Recognition · Computer Science 2018-12-04 Eoin Brophy , José Juan Dominguez Veiga , Zhengwei Wang , Alan F. Smeaton , Tomas E. Ward

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

With the rapid development of the internet of things (IoT) and artificial intelligence (AI) technologies, human activity recognition (HAR) has been applied in a variety of domains such as security and surveillance, human-robot interaction,…

Human-Computer Interaction · Computer Science 2023-01-19 Rex Liu , Albara Ah Ramli , Huanle Zhang , Erik Henricson , Xin Liu

Social interactions play a crucial role in shaping human behavior, relationships, and societies. It encompasses various forms of communication, such as verbal conversation, non-verbal gestures, facial expressions, and body language. In this…

Machine Learning · Computer Science 2026-05-13 Alice Zhang , Callihan Bertley , Dawei Liang , Edison Thomaz

Human activity recognition (HAR) from on-body sensors is a core functionality in many AI applications: from personal health, through sports and wellness to Industry 4.0. A key problem holding up progress in wearable sensor-based HAR,…

Signal Processing · Electrical Eng. & Systems 2024-05-21 Si Zuo , Vitor Fortes Rey , Sungho Suh , Stephan Sigg , Paul Lukowicz

The problem of environmental monitoring using a wireless network of chemical sensors with a limited energy supply is considered. Since the conventional chemical sensors in active mode consume vast amounts of energy, an optimisation problem…

Social and Information Networks · Computer Science 2011-11-07 Alex Skvortsov , Branko Ristic

Internet of Things applications have gained widespread recognition for their efficacy in typical scenarios, such as smart cities and smart healthcare. Nonetheless, there exist numerous unconventional situations where IoT technologies have…

Networking and Internet Architecture · Computer Science 2023-11-01 Luca Scalambrin , Andrea Zanella , Xavier Vilajosana

Human Activity Recognition (HAR) has become an increasingly popular task for embedded devices such as smartwatches. Most HAR systems for ultra-low power devices are based on classic Machine Learning (ML) models, whereas Deep Learning (DL),…

Signal Processing · Electrical Eng. & Systems 2022-06-16 Francesco Daghero , Daniele Jahier Pagliari , Massimo Poncino

With the ever-increasing range of applications of Internet in Things (IoT) and sensor networks, challenges are emerging in various categories of classification tasks. Applications such as vehicular networking, UAV swarm coordination and…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-04-01 Andrew Nash , Dirk Pesch , Krishnendu Guha

Air pollutant exposure exhibits significant spatial and temporal variability, with localized hotspots, particularly in traffic microenvironments, posing health risks to commuters. Although widely used for air quality assessment, fixed-site…

Signal Processing · Electrical Eng. & Systems 2025-06-04 Hui Zhong , Hongliang Lu , Ting Gan , Yonghong Liu , Xinhu Zheng

Urban air pollution hotspots pose significant health risks, yet their detection and analysis remain limited by the sparsity of public sensor networks. This paper addresses this challenge by combining predictive modeling and mechanistic…

Computers and Society · Computer Science 2025-02-11 Ankit Bhardwaj , Ananth Balashankar , Shiva Iyer , Nita Soans , Anant Sudarshan , Rohini Pande , Lakshminarayanan Subramanian

Embedded peripheral devices such as memories, sensors and communications interfaces are used to perform a function external to a host microcontroller. The device manufacturer typically specifies worst-case current consumption and latency…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-01-16 Daniel Moore , Alexander Dean