Conditional noise deep learning for parameter estimation of gravitational wave events

Han Shiang Kuo, Feng Li Lin*

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

1 引文 斯高帕斯(Scopus)

摘要

We construct a Bayesian inference deep learning machine for parameter estimation of gravitational wave events of binaries of black hole coalescence. The structure of our deep Bayesian machine adopts the conditional variational autoencoder scheme by conditioning on both the gravitational wave strains and the variations of the amplitude spectral density (ASD) of the detector noise. We show that our deep Bayesian machine is capable of yielding posteriors compatible with the ones from the nested sampling method and better than the one without conditioning on the ASD. Our result implies that the process of parameter estimation can be accelerated significantly by deep learning even with large ASD drifting/variation. We also apply our deep Bayesian machine to the LIGO/Virgo O3 events, the result is compatible with the one by the traditional Bayesian inference method for the gravitational wave events with signal-to-noise ratios higher than typical threshold value. We use one GPU device, NVIDIA RTX3090, to train the deep learning machines, which takes about 12 hours. After training, it takes less than one second to generate the posterior of a gravitational wave event and is far faster than the conventional nested sampling method.

原文英語
文章編號044016
期刊Physical Review D
105
發行號4
DOIs
出版狀態已發佈 - 2022 2月 15

ASJC Scopus subject areas

  • 物理與天文學(雜項)

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