Optimizing Sensor Deployment for Multi-Sensor-Based HAR System with Improved Glowworm Swarm Optimization Algorithm

Human activity recognition (HAR) technology that analyzes and fuses the data acquired from various homogeneous or heterogeneous sensor sources has motivated the development of enormous human-centered applications such as healthcare, fitness, ambient assisted living and rehabilitation. The concurrent...

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Main Authors: Yiming Tian, Jie Zhang
Format: Article
Language:English
Published: MDPI AG 2020-12-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/20/24/7161
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author Yiming Tian
Jie Zhang
author_facet Yiming Tian
Jie Zhang
author_sort Yiming Tian
collection DOAJ
description Human activity recognition (HAR) technology that analyzes and fuses the data acquired from various homogeneous or heterogeneous sensor sources has motivated the development of enormous human-centered applications such as healthcare, fitness, ambient assisted living and rehabilitation. The concurrent use of multiple sensor sources for HAR is a good choice because the plethora of user information provided by the various sensor sources may be useful. However, a multi-sensor system with too many sensors will bring large power consumption and some sensor sources may bring little improvements to the performance. Therefore, the multi-sensor deployment research that can gain a tradeoff among computational complexity and performance is imperative. In this paper, we propose a multi-sensor-based HAR system whose sensor deployment can be optimized by selective ensemble approaches. With respect to optimization of the sensor deployment, an improved binary glowworm swarm optimization (IBGSO) algorithm is proposed and the sensor sources that have a significant effect on the performance of HAR are selected. Furthermore, the ensemble learning system based on optimized sensor deployment is constructed for HAR. Experimental results on two datasets show that the proposed IBGSO-based multi-sensor deployment approach can select a smaller number of sensor sources while achieving better performance than the ensemble of all sensors and other optimization-based selective ensemble approaches.
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spelling doaj.art-fadeb702475a4a358e03fb79701728a42023-11-21T00:45:46ZengMDPI AGSensors1424-82202020-12-012024716110.3390/s20247161Optimizing Sensor Deployment for Multi-Sensor-Based HAR System with Improved Glowworm Swarm Optimization AlgorithmYiming Tian0Jie Zhang1College of Information Engineering, Tianjin University of Commerce, Tianjin 300134, ChinaSchool of Engineering, Merz Court, Newcastle University, Newcastle upon Tyne NE1 7RU, UKHuman activity recognition (HAR) technology that analyzes and fuses the data acquired from various homogeneous or heterogeneous sensor sources has motivated the development of enormous human-centered applications such as healthcare, fitness, ambient assisted living and rehabilitation. The concurrent use of multiple sensor sources for HAR is a good choice because the plethora of user information provided by the various sensor sources may be useful. However, a multi-sensor system with too many sensors will bring large power consumption and some sensor sources may bring little improvements to the performance. Therefore, the multi-sensor deployment research that can gain a tradeoff among computational complexity and performance is imperative. In this paper, we propose a multi-sensor-based HAR system whose sensor deployment can be optimized by selective ensemble approaches. With respect to optimization of the sensor deployment, an improved binary glowworm swarm optimization (IBGSO) algorithm is proposed and the sensor sources that have a significant effect on the performance of HAR are selected. Furthermore, the ensemble learning system based on optimized sensor deployment is constructed for HAR. Experimental results on two datasets show that the proposed IBGSO-based multi-sensor deployment approach can select a smaller number of sensor sources while achieving better performance than the ensemble of all sensors and other optimization-based selective ensemble approaches.https://www.mdpi.com/1424-8220/20/24/7161human activity recognitionmulti-sensor data fusionselective ensembleglowworm swarm optimizationsensor layout
spellingShingle Yiming Tian
Jie Zhang
Optimizing Sensor Deployment for Multi-Sensor-Based HAR System with Improved Glowworm Swarm Optimization Algorithm
Sensors
human activity recognition
multi-sensor data fusion
selective ensemble
glowworm swarm optimization
sensor layout
title Optimizing Sensor Deployment for Multi-Sensor-Based HAR System with Improved Glowworm Swarm Optimization Algorithm
title_full Optimizing Sensor Deployment for Multi-Sensor-Based HAR System with Improved Glowworm Swarm Optimization Algorithm
title_fullStr Optimizing Sensor Deployment for Multi-Sensor-Based HAR System with Improved Glowworm Swarm Optimization Algorithm
title_full_unstemmed Optimizing Sensor Deployment for Multi-Sensor-Based HAR System with Improved Glowworm Swarm Optimization Algorithm
title_short Optimizing Sensor Deployment for Multi-Sensor-Based HAR System with Improved Glowworm Swarm Optimization Algorithm
title_sort optimizing sensor deployment for multi sensor based har system with improved glowworm swarm optimization algorithm
topic human activity recognition
multi-sensor data fusion
selective ensemble
glowworm swarm optimization
sensor layout
url https://www.mdpi.com/1424-8220/20/24/7161
work_keys_str_mv AT yimingtian optimizingsensordeploymentformultisensorbasedharsystemwithimprovedglowwormswarmoptimizationalgorithm
AT jiezhang optimizingsensordeploymentformultisensorbasedharsystemwithimprovedglowwormswarmoptimizationalgorithm