Online detection of behavioral change using unobtrusive eldercare monitoring system

The rapid ageing population is posing challenges to many countries all over the world, particularly in the provision of care to the growing number of elderly who are living alone. Allowing the elderly to age-in-place, i.e., live safely and independently in the comfort of their own homes is a model t...

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Main Authors: LA, Thanh Tam, VALERA, Alvin Cerdena, Hwee-Pink TAN, KOH, Cheryl Li Fang
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Language:English
Published: Institutional Knowledge at Singapore Management University 2016
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Online Access:https://ink.library.smu.edu.sg/sis_research/3330
https://ink.library.smu.edu.sg/context/sis_research/article/4332/viewcontent/OnlineDetectionofBehaviorialChange.pdf
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spelling sg-smu-ink.sis_research-43322017-03-27T08:06:40Z Online detection of behavioral change using unobtrusive eldercare monitoring system LA, Thanh Tam VALERA, Alvin Cerdena Hwee-Pink TAN, KOH, Cheryl Li Fang The rapid ageing population is posing challenges to many countries all over the world, particularly in the provision of care to the growing number of elderly who are living alone. Allowing the elderly to age-in-place, i.e., live safely and independently in the comfort of their own homes is a model that can potentially address the resource constraint in health and community care faced by many nations. To make this model a reality and provide appropriate and timely care to the elderly, unobtrusive eldercare monitoring systems (EMS) are being deployed in real homes to continuously monitor the activity of the elderly. In this paper, we study the feasibility of detecting behavioral changes using rudimentary binary sensors similar to the ones used by many commercial EMS, as a trigger for early intervention by caregivers. We propose Online Behavioral Change Detection (OBCD), a scheme to automatically detect behavioral changes using online streaming data from binary sensors. OBCD extends existing changepoint detection methods to reduce false positives due to extraneous factors such as faulty sensors, down gateways or backhaul connectivity observed in real deployment environments. The Mann-Whitney test is complemented with a comparison of quartile coefficient of dispersion and a threshold test of the means before and after the change, to filter out changes due to the above-mentioned factors. Our case studies show that OBCD can significantly reduce false positives by 80% or more compared with the Mann-Whitney test without increasing the detection delay, i.e., the time between event occurrence and its detection. 2016-12-01T08:00:00Z text application/pdf https://ink.library.smu.edu.sg/sis_research/3330 info:doi/10.1145/3016032.3016053 https://ink.library.smu.edu.sg/context/sis_research/article/4332/viewcontent/OnlineDetectionofBehaviorialChange.pdf http://creativecommons.org/licenses/by-nc-nd/4.0/ Research Collection School Of Computing and Information Systems eng Institutional Knowledge at Singapore Management University Behavioral change elderly monitoring systems Change point detection Coefficient of dispersion Early intervention On-line detection Resource Constraint Time-between-events Computer Sciences Health Information Technology
institution Singapore Management University
building SMU Libraries
continent Asia
country Singapore
Singapore
content_provider SMU Libraries
collection InK@SMU
language English
topic Behavioral change
elderly monitoring systems
Change point detection
Coefficient of dispersion
Early intervention
On-line detection
Resource Constraint
Time-between-events
Computer Sciences
Health Information Technology
spellingShingle Behavioral change
elderly monitoring systems
Change point detection
Coefficient of dispersion
Early intervention
On-line detection
Resource Constraint
Time-between-events
Computer Sciences
Health Information Technology
LA, Thanh Tam
VALERA, Alvin Cerdena
Hwee-Pink TAN,
KOH, Cheryl Li Fang
Online detection of behavioral change using unobtrusive eldercare monitoring system
description The rapid ageing population is posing challenges to many countries all over the world, particularly in the provision of care to the growing number of elderly who are living alone. Allowing the elderly to age-in-place, i.e., live safely and independently in the comfort of their own homes is a model that can potentially address the resource constraint in health and community care faced by many nations. To make this model a reality and provide appropriate and timely care to the elderly, unobtrusive eldercare monitoring systems (EMS) are being deployed in real homes to continuously monitor the activity of the elderly. In this paper, we study the feasibility of detecting behavioral changes using rudimentary binary sensors similar to the ones used by many commercial EMS, as a trigger for early intervention by caregivers. We propose Online Behavioral Change Detection (OBCD), a scheme to automatically detect behavioral changes using online streaming data from binary sensors. OBCD extends existing changepoint detection methods to reduce false positives due to extraneous factors such as faulty sensors, down gateways or backhaul connectivity observed in real deployment environments. The Mann-Whitney test is complemented with a comparison of quartile coefficient of dispersion and a threshold test of the means before and after the change, to filter out changes due to the above-mentioned factors. Our case studies show that OBCD can significantly reduce false positives by 80% or more compared with the Mann-Whitney test without increasing the detection delay, i.e., the time between event occurrence and its detection.
format text
author LA, Thanh Tam
VALERA, Alvin Cerdena
Hwee-Pink TAN,
KOH, Cheryl Li Fang
author_facet LA, Thanh Tam
VALERA, Alvin Cerdena
Hwee-Pink TAN,
KOH, Cheryl Li Fang
author_sort LA, Thanh Tam
title Online detection of behavioral change using unobtrusive eldercare monitoring system
title_short Online detection of behavioral change using unobtrusive eldercare monitoring system
title_full Online detection of behavioral change using unobtrusive eldercare monitoring system
title_fullStr Online detection of behavioral change using unobtrusive eldercare monitoring system
title_full_unstemmed Online detection of behavioral change using unobtrusive eldercare monitoring system
title_sort online detection of behavioral change using unobtrusive eldercare monitoring system
publisher Institutional Knowledge at Singapore Management University
publishDate 2016
url https://ink.library.smu.edu.sg/sis_research/3330
https://ink.library.smu.edu.sg/context/sis_research/article/4332/viewcontent/OnlineDetectionofBehaviorialChange.pdf
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