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Improved Assessment of Orbital Stability of Rhythmic Motion with Noise
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ahn, Jooeun | en |
dc.contributor.author | Hogan, Neville | - |
dc.date.accessioned | 2017-04-19T00:19:41Z | - |
dc.date.available | 2017-12-26T15:03:47Z | - |
dc.date.issued | 2015-03 | - |
dc.identifier.citation | PLoS ONE, Vol.10 No.3, pp. 1-12 | - |
dc.identifier.issn | 19326203 | - |
dc.identifier.uri | https://hdl.handle.net/10371/116876 | - |
dc.description.abstract | Mathematical techniques have provided tools to quantify the stability of rhythmic movements of humans and machines as well as mathematical models. One archetypal example is the use of Floquet multipliers: assuming periodic motion to be a limit-cycle of a nonlinear oscillator, local stability has been assessed by evaluating the rate of convergence to the limit-cycle. However, the accuracy of the assessment in experiments is questionable: Floquet multipliers provide a measure of orbital stability for deterministic systems, but various components of biological systems and machines involve inevitable noise. In this study, we show that the conventional estimate of orbital stability, which depends on regression, has bias in the presence of noise. We quantify the bias, and devise a new method to estimate orbital stability more accurately. Compared with previous methods, our method substantially reduces the bias, providing acceptable estimates of orbital stability with an order-of-magnitude fewer cycles. | en |
dc.description.sponsorship | Support was provided by the Eric P. and Evelyn E. Newman Fund, and the Gloria Blake Endowment Fund to JA. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. | - |
dc.language.iso | en | - |
dc.publisher | PUBLIC LIBRARY SCIENCE | en |
dc.subject | Improved Assessment of Orbital Stability of Rhythmic Motion with Noise | en |
dc.subject | 복합학 | en |
dc.title | Improved Assessment of Orbital Stability of Rhythmic Motion with Noise | en |
dc.type | Article | en |
dc.contributor.AlternativeAuthor | 안주은 | - |
dc.identifier.doi | 10.1371/journal.pone.0119596 | - |
dc.description.srnd | OAIID:RECH_ACHV_DSTSH_NO:T201502047 | - |
dc.description.srnd | RECH_ACHV_FG:RR00200001 | - |
dc.description.srnd | ADJUST_YN: | - |
dc.description.srnd | EMP_ID:A080358 | - |
dc.description.srnd | CITE_RATE:3.057 | - |
dc.description.srnd | DEPT_NM:체육교육과 | - |
dc.description.srnd | EMAIL:ahnjooeun@snu.ac.kr | - |
dc.description.srnd | SCOPUS_YN:Y | - |
dc.description.srnd | CONFIRM:Y | - |
dc.identifier.srnd | T201502047 | - |
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