most citedNLTG Priors in Medical Image: Nonlocal TV-Gaussian (NLTG) prior for Bayesian inverse problems with applications to Limited CT Reconstruction

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math.ST2019

A greedy algorithm for sparse precision matrix approximation

Didi Lv, Xiaoqun Zhang

Precision matrix estimation is an important problem in statistical data analysis. This paper introduces a fast sparse precision matrix estimation algorithm, namely GISS, whic…