Presentation 2018-12-14
Correcting Outputs of Ensemble LSTMs by CRF for Robust Activity Recognition
Haruka Abe, Yuta Hayakawa, Takuya Hino, Motohide Sugihara, Hiroki Ikeya, Masamichi Shimosaka,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Recognizing the activities of the construction vehicle helps to assess the skill of the workers or give a technical guidance to improve the workers' skill. Many research employ LSTM which can utilize long-term dependency for the activity recognition tasks. When we apply LSTM to the activity recognition tasks, we obtain multiple prediction results for data at the same frame. Conventional methods tend to employ an output only from the last frame of LSTM and others are disposed. Prediction accuracy can be improved by integrating these multiple outputs, but there is no current study. In this research, we tackle this issue by employing CRF. We'll show the proposed method overcomes the other methods throughout the experiment.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Activity recognition / Construction vehicle / LSTM / CRF / Deep learning
Paper # PRMU2018-94
Date of Issue 2018-12-06 (PRMU)

Conference Information
Committee PRMU
Conference Date 2018/12/13(2days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Shinichi Sato(NII)
Vice Chair Yoshihisa Ijiri(Omron) / Toru Tamaki(Hiroshima Univ.)
Secretary Yoshihisa Ijiri(NEC) / Toru Tamaki(Osaka Univ.)
Assistant Go Irie(NTT) / Yoshitaka Ushiku(OSX)

Paper Information
Registration To Technical Committee on Pattern Recognition and Media Understanding
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Correcting Outputs of Ensemble LSTMs by CRF for Robust Activity Recognition
Sub Title (in English)
Keyword(1) Activity recognition
Keyword(2) Construction vehicle
Keyword(3) LSTM
Keyword(4) CRF
Keyword(5) Deep learning
1st Author's Name Haruka Abe
1st Author's Affiliation Tokyo Institute of Technology(Tokyo Tech)
2nd Author's Name Yuta Hayakawa
2nd Author's Affiliation Tokyo Institute of Technology(Tokyo Tech)
3rd Author's Name Takuya Hino
3rd Author's Affiliation Komatsu Ltd.(KOMATSU)
4th Author's Name Motohide Sugihara
4th Author's Affiliation Komatsu Ltd.(KOMATSU)
5th Author's Name Hiroki Ikeya
5th Author's Affiliation Komatsu Ltd.(KOMATSU)
6th Author's Name Masamichi Shimosaka
6th Author's Affiliation Tokyo Institute of Technology(Tokyo Tech)
Date 2018-12-14
Paper # PRMU2018-94
Volume (vol) vol.118
Number (no) PRMU-362
Page pp.pp.103-108(PRMU),
#Pages 6
Date of Issue 2018-12-06 (PRMU)