Presentation 2022-02-22
Classification of User's Device Possession Position and Behavior by Using Deep Metric Learning
Rui Kitahara, Lifeng Zhang,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) With the widespread use of smartphones, there have been efforts to classify human behavior using built-in sensors. However, most of these efforts are limited to a single location where the smartphone is held and are considered insufficient to be incorporated into actual smartphones as a system. If it can be confirmed that it is possible to classify behavior and possession location at the same time, it will be possible to change the notification method of the smartphone according to the user's situation. In this study, we acquired data from the accelerometer of a smartphone, trained it using deep metric learning, and classified the user's behavior and possession position using cosine similarity during inference. As a result, not only did we obtain the same accuracy as in the previous study even when classifying both actions and possession positions at the same time, but we also confirmed that it was possible to output untrained data as an unknown class.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Behavioral Classification / Accelerometer / Image Processing / Deep Learning
Paper # ITS2021-40,IE2021-49
Date of Issue 2022-02-14 (ITS, IE)

Conference Information
Committee IE / ITS / ITE-AIT / ITE-ME / ITE-MMS
Conference Date 2022/2/21(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English) Image Processing, etc.
Chair Kazuya Kodama(NII) / Masahiro Fujii(Utsunomiya Univ.) / Hisaki Nate(Tokyo Polytechnic Univ.) / Hiroyuki Arai(Nippon Inst. of Tech.) / Kenji Machida(NHK)
Vice Chair Hiroyuki Bandoh(NTT) / Toshihiko Yamazaki(Univ. of Tokyo) / Kohei Ohno(Meiji Univ.) / Naohisa Hashimoto(AIST) / / Shogo Muramatsu(Niigata Univ.)
Secretary Hiroyuki Bandoh(KDDI Research) / Toshihiko Yamazaki(Nagoya Inst. of Tech.) / Kohei Ohno(Akita Prefectural Univ.) / Naohisa Hashimoto(NIT, Tsuruoka College) / / Shogo Muramatsu(NHK) / (Hokkaido Univ.)
Assistant Shunsuke Iwamura(NHK) / Shinobu Kudo(NTT) / Msataka Imao(Mitsubishi Electric) / Kenshi Saho(Toyama Prefectural Univ.) / Keiji Jimi(Gunma Univ.)

Paper Information
Registration To Technical Committee on Image Engineering / Technical Committee on Intelligent Transport Systems Technology / Technical Group on Artistic Image Technology / Technical Group on Media Engineering / Technical Group on Multi-media Storage
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Classification of User's Device Possession Position and Behavior by Using Deep Metric Learning
Sub Title (in English)
Keyword(1) Behavioral Classification
Keyword(2) Accelerometer
Keyword(3) Image Processing
Keyword(4) Deep Learning
1st Author's Name Rui Kitahara
1st Author's Affiliation Kyushu Institute of Technology(Kyutech)
2nd Author's Name Lifeng Zhang
2nd Author's Affiliation Kyushu Institute of Technology(Kyutech)
Date 2022-02-22
Paper # ITS2021-40,IE2021-49
Volume (vol) vol.121
Number (no) ITS-373,IE-374
Page pp.pp.91-96(ITS), pp.91-96(IE),
#Pages 6
Date of Issue 2022-02-14 (ITS, IE)