Bootstrap Resampling as a Tool for Radio Interferometric Imaging Fidelity Assessment
نویسندگان
چکیده
منابع مشابه
Bootstrap resampling as a tool for radio - interferometric imaging fidelity assessment
We report on a numerical evaluation of the statistical bootstrap as a technique for radio-interferometric imaging fidelity assessment. The development of a fidelity assessment technique is an important scientific prerequisite for automated pipeline reduction of data from modern radio interferometers. We evaluate the statistical performance of two bootstrap methods, the model-based bootstrap and...
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We report on a broader evaluation of statistical bootstrap resampling methods as a tool for pixel-level calibration and imaging fidelity assessment in radio interferometry. Pixel-level imaging fidelity assessment is a challenging problem, important for the value it holds in robust scientific interpretation of interferometric images, enhancement of automated pipeline reduction systems needed to ...
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Rafael E. Carrillo∗, Jason D. McEwen†, and Yves Wiaux∗‡§ ∗ Institute of Electrical Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland. † Department of Physics and Astronomy, University College London, London WC1E 6BT, UK. ‡ Department of Radiology and Medical Informatics, University of Geneva (UniGE), CH-1211 Geneva, Switzerland. § Department of Radiolog...
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Bootstrap principle is briefly reviewed. Hall’s (1989) antithetic variates method for bootstrap is discussed and extended to more than two antithetic resampling processes. We illustrate the theory with a simulation study. The numerical results show that increasing the number of antithetic resampling processes produces significant smaller variances of the bootstrap estimator over the paired case.
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ژورنال
عنوان ژورنال: The Astronomical Journal
سال: 2005
ISSN: 0004-6256,1538-3881
DOI: 10.1086/428006