Presentation 2018-05-24
[Poster Presentation] Investigation of Feature Reduction for Body Motion Identification using Radio Channel Characteristics in Wireless BAN
Yuki Ichikawa, Minseok Kim,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In this article, the reduction of the features used for human motion classification using decision tree machine learning algorithm has been investigated.We developed a custom wearable BAN channel measurement system using a commercial cheap product of a sensor network, where a radio signal strength between four sensors and coordinator can be measured. After preprocessing of interpolation and denoising for the raw data, the time domain features are calculated by varying the sample window sizes where six window sizes were chosen from the period of the body motion.After that, Feature Importance was calculated for feature reduction.As a result, we clarified that the sensor can be reduced to those in the vicinity of the coordinator when the sample window size used for feature calculation is set to about half of the maximum period of the body motions, and that Mean Value Slope is not involved for classification.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) machine learning / feature / decision tree / BAN / radio channel / LQI / motion identification
Paper # RCC2018-4,MICT2018-4
Date of Issue 2018-05-17 (RCC, MICT)

Conference Information
Committee RCC / MICT
Conference Date 2018/5/24(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Tokyo Big Sight
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Shinsuke Hara(Osaka City Univ.) / Masaru Sugimachi(National Cerebral and Cardiovascular Center)
Vice Chair Kazunori Hayashi(Osaka City Univ.) / Ryu Miura(NICT) / Shinsuke Hara(Osaka City Univ.) / Takahiro Aoyagi(Tokyo Inst. of Tech.)
Secretary Kazunori Hayashi(Kagawa Univ.) / Ryu Miura(Hokkaido Univ.) / Shinsuke Hara(Niigata Univ.) / Takahiro Aoyagi(Saga Univ.)
Assistant Toshinori Kagawa(NICT) / Kentaro Kobayashi(Nagoya Univ.) / Takumi Kobayashi(Yokohama National Univ.) / Shintaro Izumi(Kobe Univ.) / Tomoko Tateyama(Hiroshima Inst. of Tech.) / Ami Tanaka(Ritsumeikan Univ.) / Daisuke Anzai(Nagoya Inst. of Tech.)

Paper Information
Registration To Technical Committee on Reliable Communication and Control / Technical Committee on Healthcare and Medical Information Communication Technology
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Poster Presentation] Investigation of Feature Reduction for Body Motion Identification using Radio Channel Characteristics in Wireless BAN
Sub Title (in English)
Keyword(1) machine learning
Keyword(2) feature
Keyword(3) decision tree
Keyword(4) BAN
Keyword(5) radio channel
Keyword(6) LQI
Keyword(7) motion identification
1st Author's Name Yuki Ichikawa
1st Author's Affiliation Niigata University(Niigata Univ.)
2nd Author's Name Minseok Kim
2nd Author's Affiliation Niigata University(Niigata Univ.)
Date 2018-05-24
Paper # RCC2018-4,MICT2018-4
Volume (vol) vol.118
Number (no) RCC-53,MICT-54
Page pp.pp.17-20(RCC), pp.17-20(MICT),
#Pages 4
Date of Issue 2018-05-17 (RCC, MICT)