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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/8803

Title: A Support System for Context Awareness in a Group Home Using Sound Cues
Authors: Kanai, H.
Nakada, T.
Hanba, Y.
Kunifuji, S.
Keywords: context awareness
Group home
ambient notification system
support for caregivers
Issue Date: 2008
Publisher: Schattauer
Magazine name: Methods of Information in Medicine
Volume: 47
Number: 3
Start page: 198
End page: 202
DOI: 10.3414/ME9110
Abstract: Objectives: In a group home, caregivers should be aware of the inhabitant's real-time situation. The aim of our study is to facilitate the awareness of an inhabitant's situation by means of enhanced sound cues. Methods: We propose an audio notification system that indicates the real-time situation of persons in a group home environment using sound cues instead of visual surveillance. The notification system comprises a prediction and a notification function. The prediction function estimates a person's real-time situation using a Bayesian network and sensed information; the notification function informs recipients of the predicted situation and the confidence level of the prediction by means of sound cues. We use natural sounds as sound cues. Results: As a first step to examine our system in a group home, we conducted operation and performance tests of each unit under a simple test environment. The correct prediction of the subject's situation is approximately 90%; further, it is shown that the sound cues should be selected according to their environmental dependence. Conclusions: The results show that the method is useful for monitoring persons. As future study, we will conduct a field test on an implemented system and improve it for practical use in a group home.
Rights: Copyright (C) 2008 Schattauer. H. Kanai, T. Nakada, Y. Hanba, S. Kunifuji, Methods of Information in Medicine, 47(3), 2008, 198-202. http://dx.doi.org/10.3414/ME9110
URI: http://hdl.handle.net/10119/8803
Material Type: publisher
Appears in Collections:z7-10-1. 雑誌掲載論文 (Journal Articles)

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