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  Likelihood-ratio ranking of gravitational-wave candidates in a non-Gaussian background

Biswas, R., Brady, P. R., Burguet-Castell, J., Cannon, K., Clayton, J., Dietz, A., et al. (2012). Likelihood-ratio ranking of gravitational-wave candidates in a non-Gaussian background. Physical Review D, 85: 122008. doi:10.1103/PhysRevD.85.122008.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000E-E968-F Version Permalink: http://hdl.handle.net/11858/00-001M-0000-000E-E969-D
Genre: Journal Article

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1201.2959 (Preprint), 2MB
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 Creators:
Biswas, Rahul, Author
Brady, Patrick R., Author
Burguet-Castell, Jordi, Author
Cannon, Kipp, Author
Clayton, Jessica, Author
Dietz, Alexander, Author
Fotopoulos, Nickolas, Author
Goggin, Lisa M., Author
Keppel, Drew1, Author              
Pankow, Chris, Author
Price, Larry R., Author
Vaulin, Ruslan, Author
Affiliations:
1Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, escidoc:24011              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc, Astrophysics, Instrumentation and Methods for Astrophysics, astro-ph.IM
 Abstract: We describe a general approach to detection of transient gravitational-wave signals in the presence of non-Gaussian background noise. We prove that under quite general conditions, the ratio of the likelihood of observed data to contain a signal to the likelihood of it being a noise fluctuation provides optimal ranking for the candidate events found in an experiment. The likelihood-ratio ranking allows us to combine different kinds of data into a single analysis. We apply the general framework to the problem of unifying the results of independent experiments and the problem of accounting for non-Gaussian artifacts in the searches for gravitational waves from compact binary coalescence in LIGO data. We show analytically and confirm through simulations that in both cases the likelihood ratio statistic results in an improved analysis.

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 Dates: 2012-01-132012-01-162012
 Publication Status: Published in print
 Pages: 10 pages, 6 figures
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1201.2959
DOI: 10.1103/PhysRevD.85.122008
 Degree: -

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Title: Physical Review D
  Other : Phys. Rev. D.
Source Genre: Journal
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Publ. Info: Lancaster, Pa. : Published for the American Physical Society by the American Institute of Physics
Pages: - Volume / Issue: 85 Sequence Number: 122008 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: http://pubman.mpdl.mpg.de/cone/journals/resource/111088197762258