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Understanding the spatio-temporal dynamics of cities is in the heart of many applications including urban planning, zoning, and real-estate construction. So far, much of our understanding about urban dynamics came from traditional surveys…

Social and Information Networks · Computer Science 2018-07-18 Sofiane Abbar , Tahar Zanouda , Noora Al-Emadi , Rachida Zegour

With the increasing number of IoT devices, there is a growing demand for energy-free sensors. Human activity recognition holds immense value in numerous daily healthcare applications. However, the majority of current sensing modalities…

Signal Processing · Electrical Eng. & Systems 2023-08-11 Kaede Shintani , Hamada Rizk , Hirozumi Yamaguchi

Human activity recognition has wide applications in medical research and human survey system. In this project, we design a robust activity recognition system based on a smartphone. The system uses a 3-dimentional smartphone accelerometer as…

Computers and Society · Computer Science 2014-02-03 Amin Rasekh , Chien-An Chen , Yan Lu

Human Activity Recognition (HAR) is considered a valuable research topic in the last few decades. Different types of machine learning models are used for this purpose, and this is a part of analyzing human behavior through machines. It is…

Machine Learning · Computer Science 2021-03-31 Jakaria Rabbi , Md. Tahmid Hasan Fuad , Md. Abdul Awal

When different radio applications share the same spectrum, the separation by attenuating material is a way to mitigate potential interference. The indoor restriction for WLAN devices in 5150-5350 MHz is an example for a regulatory measure…

Signal Processing · Electrical Eng. & Systems 2020-07-29 Stefan Ruehrup

Any audio recording encapsulates the unique fingerprint of the associated acoustic environment, namely the background noise and reverberation. Considering the scenario of a room equipped with a fixed smart speaker device with one or more…

Audio and Speech Processing · Electrical Eng. & Systems 2022-12-05 Francesco Nespoli , Daniel Barreda , Patrick A. Naylor

Human activities within smart infrastructures generate a vast amount of IMU data from the wearables worn by individuals. Many existing studies rely on such sensory data for human activity recognition (HAR); however, one of the major…

Signal Processing · Electrical Eng. & Systems 2024-10-28 Soumyajit Chatterjee , Arun Singh , Bivas Mitra , Sandip Chakraborty

With robots increasingly integrating into human environments, understanding and predicting human motion is essential for safe and efficient interactions. Modern human motion and activity prediction approaches require high quality and…

Ambient sensor-based human activity recognition (HAR) in smart homes remains challenging due to the need for real-time inference, spatially grounded reasoning, and context-aware temporal modeling. Existing approaches often rely on…

Machine Learning · Computer Science 2025-11-11 Zishuai Liu , Weihang You , Jin Lu , Fei Dou

In the realm of intelligent transportation systems, accurate and reliable traffic monitoring is crucial. Traditional devices, such as cameras and lidars, face limitations in adverse weather conditions and complex traffic scenarios,…

Signal Processing · Electrical Eng. & Systems 2025-04-17 Linlin Wang , Shixin Wang , Peng Wang , Wei Wang , Dezhao Wang , Yongcai Wang , Shanwen Wang

The Internet of Things describes a network of physical devices interacting and producing vast streams of sensor data. At present there are a number of general challenges which exist while developing solutions for use cases involving the…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-08-25 Morgan K. Geldenhuys , Jonathan Will , Benjamin J. J. Pfister , Martin Haug , Alexander Scharmann , Lauritz Thamsen

A high-power acoustic sensor, capable of detecting and tracking persons through steel walls of cargo containers, trailer truck bodies, and train cars, has been developed and demonstrated. The sensor is based on a new concept for narrowband…

Instrumentation and Detectors · Physics 2015-07-07 Franklin Felber

In our project we have designed an Android application to obtain mobility data of the citizens in the metropolitan area of Barcelona. Our implementation synchronously obtains in background on the one hand, periodic location updates and, on…

Computers and Society · Computer Science 2015-03-12 Sergi Casanova Fouce , Silvia Puglisi , Monica Aguilar Igartua

Advances in embedded devices and wireless sensor networks have resulted in new and inexpensive health care solutions. This paper describes the implementation and the evaluation of a wireless body sensor system that monitors human…

Other Computer Science · Computer Science 2010-07-15 Chao Chen , Carlos Pomalaza-Raez

Spatial prediction of weather-elements like temperature, precipitation, and barometric pressure are generally based on satellite imagery or data collected at ground-stations. None of these data provide information at a more granular or…

Applications · Statistics 2020-04-28 Arnab Chakraborty , Soumendra Nath Lahiri , Alyson Wilson

The pervasive deployment of surveillance cameras produces a massive volume of data, requiring nuanced interpretation. This study thoroughly examines data representation and visualization techniques tailored for AI surveillance data within…

Computers and Society · Computer Science 2023-12-12 Babak Rahimi Ardabili , Shanle Yao , Armin Danesh Pazho , Lauren Bourque , Hamed Tabkhi

The last decade has seen an explosion in data sources available for the monitoring and prediction of environmental phenomena. While several inferential methods have been developed that make predictions on the underlying process by combining…

Methodology · Statistics 2023-03-06 Eun-Hye Yoo , Andrew Zammit-Mangion , Michael G. Chipeta

Due to the climate change debate, a lot of research and maps of external climate parameters are available. However, maps of indoor climate performance parameters are still lacking. This paper presents a methodology for obtaining maps of…

Computational Physics · Physics 2012-05-17 A. W. M. van Schijndel

Data-driven modeling of complex physical systems is receiving a growing amount of attention in the simulation and machine learning communities. Since most physical simulations are based on compute-intensive, iterative implementations of…

Sound · Computer Science 2024-03-20 Martin Spitznagel , Janis Keuper

Audio scene cartography for real or simulated stereo recordings is presented. This audio scene analysis is performed doing successively: a perceptive 10-subbands analysis, calculation of temporal laws for relative delays and gains between…

Audio and Speech Processing · Electrical Eng. & Systems 2024-01-10 Laurent Millot , Gérard Pelé , Mohammed Elliq