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6th International Conference on Pervasive Computing Technologies for Healthcare

Research Article

LaCasa: Location And Context-Aware Safety Assistant

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  • @INPROCEEDINGS{10.4108/icst.pervasivehealth.2012.248642,
        author={Jesse Hoey and Xiao Yang and Eduardo Quintana and Jesus Favela},
        title={LaCasa:  Location And Context-Aware Safety Assistant},
        proceedings={6th International Conference on Pervasive Computing Technologies for Healthcare},
        publisher={IEEE},
        proceedings_a={PERVASIVEHEALTH},
        year={2012},
        month={7},
        keywords={mobile dementia pomdp assistance wandering},
        doi={10.4108/icst.pervasivehealth.2012.248642}
    }
    
  • Jesse Hoey
    Xiao Yang
    Eduardo Quintana
    Jesus Favela
    Year: 2012
    LaCasa: Location And Context-Aware Safety Assistant
    PERVASIVEHEALTH
    ICST
    DOI: 10.4108/icst.pervasivehealth.2012.248642
Jesse Hoey1,*, Xiao Yang1, Eduardo Quintana2, Jesus Favela2
  • 1: University of Waterloo
  • 2: CICESE
*Contact email: jhoey@cs.uwaterloo.ca

Abstract

Wandering is a common behavior among people with dementia (PwD). It is also one of the main concerns of caregivers since it can cause the person to get lost and injured. The frequency and manner in which a person wanders is highly influenced by the person's background and contextual factors specific to the situation. In this paper we investigate some of the properties of wandering behaviours, particularly related to our ability to sense them with mobile devices. We then propose a novel decision-theoretic model that estimates the risk faced by the PwD and decides on the appropriate action to take, such as prompting the PwD or calling the caregiver. The model can be tailored to the user needs (e.g. known locations, level of cognitive decline) and takes into account uncertainty, and contextual information gathered from sensors, such as current location, noise, and proximity to the caregiver. A preliminary version of the system has been instantiated in a wandering assistance application for mobile devices running on an Android platform.

Keywords
mobile dementia pomdp assistance wandering
Published
2012-07-03
Publisher
IEEE
http://dx.doi.org/10.4108/icst.pervasivehealth.2012.248642
Copyright © 2012–2025 ICST
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