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Location-enhanced activity recognition in indoor environments using off the shelf smart watch technology and BLE beacons

Location-enhanced activity recognition in indoor environments using off the shelf smart watch technology and BLE beacons

Filippoupolitis, Avgoustinos, Oliff, William, Takand, Babak and Loukas, George (2017) Location-enhanced activity recognition in indoor environments using off the shelf smart watch technology and BLE beacons. Sensors, 17 (6):1230. pp. 1-25. ISSN 1424-8220 (Print), 1424-8220 (Online) (doi:10.3390/s17061230)

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Abstract

Activity recognition in indoor spaces benefits context awareness and improves the efficiency of applications related to personalised health monitoring, building energy management, security and safety. The majority of activity recognition frameworks, however, employ a network of specialised building sensors or a network of body-worn sensors. As this approach suffers with respect to practicality, we propose the use of commercial off-the-shelf devices. In this work, we design and evaluate an activity recognition system composed of a smart watch, which is enhanced with location information coming from Bluetooth Low Energy (BLE) beacons. We evaluate the performance of this approach for a variety of activities performed in an indoor laboratory environment, using four supervised machine learning algorithms. Our experimental results indicate that our location-enhanced activity recognition system is able to reach a classification accuracy ranging from 92% to 100%, while without location information classification accuracy it can drop to as low as 50% in some cases, depending on the window size chosen for data segmentation.

Item Type: Article
Additional Information: © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Uncontrolled Keywords: Activity recognition; Wearable devices; Inertial sensors; Bluetooth beacons; Machine learning
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Faculty / Department / Research Group: Faculty of Architecture, Computing & Humanities
Faculty of Architecture, Computing & Humanities > Department of Computing & Information Systems
Last Modified: 29 Apr 2018 13:24
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: GREAT a
URI: http://gala.gre.ac.uk/id/eprint/17352

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