Presentation 2017-11-10
Estimation of Office Worker Seated-State with Ambient Sensors
Daisuke Ikeda, Yukihiro Tsuboshita, Takeshi Onishi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Nowadays, approximately 75% of all employees in industrial countries are required to work in a seated position. Long-term seated position is suggested to have the relationship of health index in a report and 28% of office workers have chronic low back pain. It is therefore important for office workers to take a break at an appropriate timing. This paper presents a method using a machine learning to estimate office workers' seated-state with accelerometers installed on a chair and a desk. Experiments were conducted by changing the installed place of the accelerometer, and the accuracy of the results have shown 89.2% with it installed on a chair and 92.8% installed on both a chair and a desk. On the experiments of leave one subject out, the average accuracy has shown 70.8%. On the experiments by changing the sampling rate, the deterioration of the accuracy is only 6.7% changing it from 30Hz to 1.875Hz.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Seated-state / Accelerometers / Machine Learning
Paper # ISEC2017-63,SITE2017-45,LOIS2017-40
Date of Issue 2017-11-02 (ISEC, SITE, LOIS)

Conference Information
Committee LOIS / ISEC / SITE
Conference Date 2017/11/9(2days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Hiroyuki Nishi(Sojo Univ.) / Kazuto Ogawa(NHK) / Hitoshi Okada(NII)
Vice Chair Tomohiro Yamada(NTT) / Atsushi Fujioka(Kanagawa Univ.) / Shiho Moriai(NICT) / Tetsuya Morizumi(Kanagawa Univ.) / Masaru Ogawa(Kobe Gakuin Univ.)
Secretary Tomohiro Yamada(Nagasaki Univ.) / Atsushi Fujioka(NTT) / Shiho Moriai(Tohoku Univ.) / Tetsuya Morizumi(Tokai Univ.) / Masaru Ogawa(Gifu Shotoku Gakuen Univ.)
Assistant Motoi Okamoto(Research Organization of Information and Systems) / Keita Emura(NICT) / Yuichi Komano(TOSHIBA) / Yuuji Suga(IIJ) / Akiyoshi Kabeya(Chiba Univ.) / Hisanori Kato(KDDI)

Paper Information
Registration To Technical Committee on Life Intelligence and Office Information Systems / Technical Committee on Information Security / Technical Committee on Social Implications of Technology and Information Ethics
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Estimation of Office Worker Seated-State with Ambient Sensors
Sub Title (in English)
Keyword(1) Seated-state
Keyword(2) Accelerometers
Keyword(3) Machine Learning
1st Author's Name Daisuke Ikeda
1st Author's Affiliation Fuji Xerox Co., Ltd.(Fuji Xerox)
2nd Author's Name Yukihiro Tsuboshita
2nd Author's Affiliation Fuji Xerox Co., Ltd.(Fuji Xerox)
3rd Author's Name Takeshi Onishi
3rd Author's Affiliation Fuji Xerox Co., Ltd.(Fuji Xerox)
Date 2017-11-10
Paper # ISEC2017-63,SITE2017-45,LOIS2017-40
Volume (vol) vol.117
Number (no) ISEC-285,SITE-286,LOIS-287
Page pp.pp.87-91(ISEC), pp.87-91(SITE), pp.87-91(LOIS),
#Pages 5
Date of Issue 2017-11-02 (ISEC, SITE, LOIS)