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Sensor-Based Change Detection for Timely Solicitation of User Engagement

Patterson, Timothy, Khan, Naveed, McClean, Sally I, Nugent, Chris, Zhang, Shuai, Cleland, Ian and Ni, Qin (2016) Sensor-Based Change Detection for Timely Solicitation of User Engagement. IEEE Transactions on Mobile Computing, PP (99). [Journal article]

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URL: http://ieeexplore.ieee.org/document/7784795/

DOI: 10.1109/TMC.2016.2640959

Abstract

The accurate detection of changes has the potential to form a fundamental component of systems which autonomously solicit user interaction based on transitions within an input stream for example, electrocardiogram data or accelerometry obtained from a mobile device. This solicited interaction may be utilised for diverse scenarios such as responding to changes in a patient's vital signs within a medical domain or requesting user activity labels for generating real-world labelled datasets. Within this paper we extend our previous work on the Multivariate Online Change detection Algorithm subsequently exploring the utility of incorporating the Benjamini Hochberg method of correcting for multiple comparisons. Furthermore we evaluate our approach against similarly light-weight Multivariate Exponentially Weighted Moving Average and Cumulative Sum based techniques. Results are presented based on manually labelled change points in accelerometry data captured using 10 participants. Each participant performed 9 distinct activities for a total period of 35 minutes. The results subsequently demonstrate the practical potential of our approach from both accuracy and computational perspectives.

Item Type:Journal article
Keywords:Multivariate change detection, Online change detection, Soliciting user interaction
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Computing and Information Engineering
Faculty of Computing & Engineering > School of Computing and Mathematics
Research Institutes and Groups:Computer Science Research Institute > Smart Environments
Computer Science Research Institute
Computer Science Research Institute > Information and Communication Engineering
ID Code:36551
Deposited By: Dr Timothy Patterson
Deposited On:21 Dec 2016 14:04
Last Modified:21 Dec 2016 14:04

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