Presentation 2015-06-11
Data assimilation for coupled dynamical systems using a merging particle filter
Eitaro Waranabe, Sho Shirasaka, Hiroya Nakao,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) We propose a method to estimate unknown parameters of coupled dynamical systems from observed data using a merging particle filter. As an example, we consider a mathematical model of CPG (Central Pattern Generator) that generates rhythmic gait patterns in the spinal cord of animals. Using the data obtained by simulating a coupled-oscillator model proposed by Golubitsky et al., we estimate the parameters of the model. We confirmed that the merging particle filter can successfully estimate most of the parameters of representative gate patterns. In some cases, different parameter sets that generate the same gait patterns were found. We also discuss that some of the parameters can be more easily estimated when the system noise is stronger.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) networks / coupled dynamical systems / data assimilation / merging particle filter / CPG
Paper # NLP2015-48,CCS2015-10
Date of Issue 2015-06-04 (NLP, CCS)

Conference Information
Committee NLP / CCS
Conference Date 2015/6/11(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Waseda Univerisity
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Kenya Jinno(Nippon Inst. of Tech.) / Hiroo Sekiya(Chiba Univ.)
Vice Chair Naoto Fujisaka(Hiroshima City Univ.) / Yasuhiro Tsubo(Ritsumeikan Univ.) / Naoki Wakamiya(Osaka Univ.)
Secretary Naoto Fujisaka(Tokyo Univ. of Science) / Yasuhiro Tsubo(Konan Univ.) / Naoki Wakamiya(Kagawa National College of Tech.)
Assistant Hidehiro Nakano(Tokyo City Univ.) / Hiroyuki Asahara(Okayama Univ. of Science) / Takayuki Kimura(Nippon Inst. of Tech.) / Song-Ju Kim(NIMS) / Ryo Takahashi(Kyoto Univ.) / Junnosuke Teramae(Osaka Univ.)

Paper Information
Registration To Technical Committee on Nonlinear Problems / Technical Committee on Complex Communication Sciences
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Data assimilation for coupled dynamical systems using a merging particle filter
Sub Title (in English)
Keyword(1) networks
Keyword(2) coupled dynamical systems
Keyword(3) data assimilation
Keyword(4) merging particle filter
Keyword(5) CPG
1st Author's Name Eitaro Waranabe
1st Author's Affiliation Tokyo Institute of Technology(Tokyo Tech)
2nd Author's Name Sho Shirasaka
2nd Author's Affiliation Tokyo Institute of Technology(Tokyo Tech)
3rd Author's Name Hiroya Nakao
3rd Author's Affiliation Tokyo Institute of Technology(Tokyo Tech)
Date 2015-06-11
Paper # NLP2015-48,CCS2015-10
Volume (vol) vol.115
Number (no) NLP-77,CCS-78
Page pp.pp.55-60(NLP), pp.55-60(CCS),
#Pages 6
Date of Issue 2015-06-04 (NLP, CCS)