Identifying correlations between LIGO's astronomical range and auxiliary sensors using lasso regression
| Autor: | D. M. Macleod, T. J. Massinger, J. R. Smith, O. Patane, Michelle E. Walker, Andrew Lundgren, Alfonso F. Agnew, Alexandra Macedo, J. Bidler |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Physics
Physics and Astronomy (miscellaneous) 010308 nuclear & particles physics Astrophysics::Instrumentation and Methods for Astrophysics FOS: Physical sciences 01 natural sciences LIGO Noise Interferometry General Relativity and Quantum Cosmology Lasso (statistics) Observatory 0103 physical sciences Linear regression Range (statistics) Limit (mathematics) 010306 general physics Astrophysics - Instrumentation and Methods for Astrophysics Instrumentation and Methods for Astrophysics (astro-ph.IM) Remote sensing astro-ph.IM |
| Zdroj: | Walker, M, Agnew, A F, Bidler, J, Lundgren, A, Macedo, A, Macleod, D, Massinger, T J, Patane, O & Smith, J R 2018, ' Identifying correlations between LIGO's astronomical range and auxiliary sensors using lasso regression ', Classical and Quantum Gravity, vol. 35, no. 22, 225002 . https://doi.org/10.1088/1361-6382/aae593 |
| DOI: | 10.1088/1361-6382/aae593 |
| Popis: | The range to which the Laser Interferometer Gravitational-Wave Observatory (LIGO) can observe astrophysical systems varies over time, limited by noise in the instruments and their environments. Identifying and removing the sources of noise that limit LIGO's range enables higher signal-to-noise observations and increases the number of observations. The LIGO observatories are continuously monitored by hundreds of thousands of auxiliary channels that may contain information about these noise sources. This paper describes an algorithm that uses linear regression, namely lasso (least absolute shrinkage and selection operator) regression, to analyze all of these channels and identify a small subset of them that can be used to reconstruct variations in LIGO's astrophysical range. Exemplary results of the application of this method to three different periods of LIGO Livingston data are presented, along with computational performance and current limitations. |
| Databáze: | OpenAIRE |
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