Presentation 2018-11-05
[Poster Presentation] Normal mode selection of coherent phonons by Bayesian LARS-OLS
Itsushi Sakata, Yoshihiro Nagano, Yasushiko Igarashi, Shin Murata, Kohji Mizoguchi, Ichiro Akai, Masato Okada,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Coherent phonon (CP) signals contain normal modes representing the material property and experimental artifacts. It is possible to rate the signals into each damped oscillation by dynamic mode decomposition (DMD). In order to know the material properties, it is necessary to extract only meaningful signals from the decomposed components (mode selection). In recent years, Murata et al. proposed a extraction method based on the magnitude of experimental known noise. In this research, we propose a framework of mode selection without using experimental noise which is difficult to measure. After estimating the candidate oscillation modes, we select candidate combinations in the framework of Bayesian free energy minimization.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Time series data / Coherent phonon / Dynamic mode decomposition / Bayesian Free Energy / Mode selection
Paper # IBISML2018-78
Date of Issue 2018-10-29 (IBISML)

Conference Information
Committee IBISML
Conference Date 2018/11/5(3days)
Place (in Japanese) (See Japanese page)
Place (in English) Hokkaido Citizens Activites Center (Kaderu 2.7)
Topics (in Japanese) (See Japanese page)
Topics (in English) Information-Based Induction Science Workshop (IBIS2018)
Chair Hisashi Kashima(Kyoto Univ.)
Vice Chair Masashi Sugiyama(Univ. of Tokyo) / Koji Tsuda(Univ. of Tokyo)
Secretary Masashi Sugiyama(Nagoya Inst. of Tech.) / Koji Tsuda(AIST)
Assistant Tomoharu Iwata(NTT) / Shigeyuki Oba(Kyoto Univ.)

Paper Information
Registration To Technical Committee on Infomation-Based Induction Sciences and Machine Learning
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Poster Presentation] Normal mode selection of coherent phonons by Bayesian LARS-OLS
Sub Title (in English)
Keyword(1) Time series data
Keyword(2) Coherent phonon
Keyword(3) Dynamic mode decomposition
Keyword(4) Bayesian Free Energy
Keyword(5) Mode selection
1st Author's Name Itsushi Sakata
1st Author's Affiliation The University of Tokyo(UTokyo)
2nd Author's Name Yoshihiro Nagano
2nd Author's Affiliation The University of Tokyo(UTokyo)
3rd Author's Name Yasushiko Igarashi
3rd Author's Affiliation Japan Science and Technology Agency(JST)
4th Author's Name Shin Murata
4th Author's Affiliation The University of Tokyo(UTokyo)
5th Author's Name Kohji Mizoguchi
5th Author's Affiliation Osaka Prefecture University(Osaka Prefecture Univ.)
6th Author's Name Ichiro Akai
6th Author's Affiliation Kumamoto University(Kumamoto Univ.)
7th Author's Name Masato Okada
7th Author's Affiliation The University of Tokyo(UTokyo)
Date 2018-11-05
Paper # IBISML2018-78
Volume (vol) vol.118
Number (no) IBISML-284
Page pp.pp.255-262(IBISML),
#Pages 8
Date of Issue 2018-10-29 (IBISML)