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Author Kobiyama, Y. ♦ Qiangfu Zhao ♦ Omomo, K. ♦ Taya, M.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2015
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Infrared sensors ♦ Wireless sensor networks ♦ Senior citizens ♦ Temperature sensors ♦ Repeaters ♦ Clustering algorithms ♦ Activity analysis ♦ Simple sensor ♦ Smart environment
Abstract The main purpose of smart environment (SE) is to assist human daily lives by analyzing and recognizing related information. Usually, equipments such as video cameras and voice recorders are useful to capture the information. However, the data often contain unnecessary information related to privacy. To solve this problem, it is important to construct SE by using simple sensors like motion sensor, pressure sensor, and so on. To validate the potentiality of simple sensors for analyzing and recognizing activities, in this paper, we focus on infrared sensors. We try to inspect the resident's activity regularity based on sensor data obtained in several ordinary Japanese houses. To obtain more concrete results, we introduce the concept short-time cross-correlation (STCC). Similar to short-time Fourier transform, STCC calculates the cross-correlation in a sliding window. From the results we can see “when” and “how” a resident's activity is regular or irregular. Thus, STCC can be a useful tool for analyzing the resident life styles and for constructing privacy preserving SE in general.
Description Author affiliation: Dept. of Comput. & Inf. Syst., Univ. of Aizu, Aizu-Wakamatsu, Japan (Kobiyama, Y.; Qiangfu Zhao; Omomo, K.) || Data Min. Applic. Lab., KDDI R&D Labs., Inc., Fujimino, Japan (Taya, M.)
ISBN 9781479986392
ISSN 21593450
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2015-11-01
Publisher Place China
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
e-ISBN 9781479986415
Size (in Bytes) 520.65 kB
Page Count 6
Starting Page 1
Ending Page 6


Source: IEEE Xplore Digital Library