TY - JOUR
T1 - Sensor-Based Change Detection for Timely Solicitation of User Engagement
AU - Patterson, Timothy
AU - Khan, Naveed
AU - McClean, Sally I
AU - Nugent, Chris
AU - Zhang, Shuai
AU - Cleland, Ian
AU - Ni, Qin
PY - 2017/8/29
Y1 - 2017/8/29
N2 - 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.
AB - 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.
KW - Multivariate change detection
KW - Online change detection
KW - Soliciting user interaction
UR - https://pure.ulster.ac.uk/en/publications/sensor-based-change-detection-for-timely-solicitation-of-user-eng-3
U2 - 10.1109/TMC.2016.2640959
DO - 10.1109/TMC.2016.2640959
M3 - Article
VL - 16
SP - 2889
EP - 2900
JO - IEEE Transactions on Mobile Computing
JF - IEEE Transactions on Mobile Computing
SN - 1536-1233
IS - 10
ER -