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238000007477 logistic regression Methods 0.000 claims description 5.230000000875 corresponding Effects 0.000 claims description 5.238000003066 decision tree Methods 0.000 claims description 7.240000005147 Syzygium aromaticum Species 0.000 claims description 8.235000016639 Syzygium aromaticum Nutrition 0.000 claims description 8.238000010801 machine learning Methods 0.000 claims description 10.238000004458 analytical method Methods 0.000 claims description 12.Assignors: WU, ANJIAN, GHOREYSHI, ATIYEH, YUEN, SHELTEN GEE JAO, PARK, JAMES Application granted granted Critical Publication of US10503268B2 publication Critical patent/US10503268B2/en Status Active legal-status Critical Current Anticipated expiration legal-status Critical Links ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority to US201562202773P priority Critical Priority to US15/231,627 priority patent/US9693711B2/en Priority to US15/603,305 priority patent/US9851808B2/en Priority to US15/812,879 priority patent/US10126830B2/en Application filed by Fitbit Inc filed Critical Fitbit Inc Priority to US16/153,618 priority patent/US10503268B2/en Publication of US20190050064A1 publication Critical patent/US20190050064A1/en Assigned to FITBIT, INC. Original Assignee Fitbit Inc Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) ( en Inventor Shelten Gee Jao Yuen James Park Atiyeh Ghoreyshi Anjian Wu Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Active Application number US16/153,618 Other versions US20190050064A1
#MOTION PULSE 2 PDF#
Google Patents User identification via motion and heartbeat waveform dataĭownload PDF Info Publication number US10503268B2 US10503268B2 US16/153,618 US201816153618A US10503268B2 US 10503268 B2 US10503268 B2 US 10503268B2 US 201816153618 A US201816153618 A US 201816153618A US 10503268 B2 US10503268 B2 US 10503268B2 Authority US United States Prior art keywords motion user signature wearable data Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US10503268B2 - User identification via motion and heartbeat waveform data These results will be helpful for updating these models in the near future.US10503268B2 - User identification via motion and heartbeat waveform data Compared with the Rupakhety2011 model, the peak location of the spectral shape curve is shifted to the long period. The suggests that NGA‐West2 models overestimate the original and residual ground motions for short periods ( T 3.0 s). In summary, (1) The applicability of NGA‐West2 models to the observed original and residual ground motions varies significantly at different periods. Here, based on the abundance of pulse‐like ground motions recorded during the M w 6.4 Hualien earthquake, the applicability of NGA‐West2 models and directivity models was quantitatively evaluated. (2011 hereafter, Rupakhety2011) models, has not been investigated for this event. (2018 hereafter, Chang2018), and Rupakhety et al. Moreover, the applicability of recently developed directivity models, including the Shahi and Baker (2011 hereafter, SB2011), Chang et al.
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Nevertheless, the applicability of Next Generation Attenuation‐West2 Project (NGA‐West2) models to pulse and residual ground motions has not been evaluated. Traditional ground‐motion models used to quantify the hazard posed by pulse‐like ground motions may underestimate them, but they are relatively suitable for describing the residual ground motions after extracting pulses. Hence, pulse effects need to be considered during probabilistic seismic hazard analysis and seismic design in the near‐fault region. Pulse‐like ground motions cause severe damage in structures at certain periods.