1k citations · 2.2k across the 11 of their papers we have counts for
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astro-ph.IM2015★ 28 cited
Estimating sparse precision matrices
Nikhil Padmanabhan, Martin White, Harrison H. Zhou +1
We apply a method recently introduced to the statistical literature to directly estimate the precision matrix from an ensemble of samples drawn from a corresponding Gaussian distri…
astro-ph.CO2015★ 45 cited
Large Covariance Matrices: Smooth Models from the 2-Point Correlation Function
Ross O'Connell, Daniel Eisenstein, Mariana Vargas +2
We introduce a new method for estimating the covariance matrix for the galaxy correlation function in surveys of large-scale structure. Our method combines simple theoretical resul…