59 citations · 107 across the 3 of their papers we have counts for
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cs.LG2011★ 38 cited
High-dimensional Sparse Inverse Covariance Estimation using Greedy Methods
Christopher C. Johnson, Ali Jalali, Pradeep Ravikumar
In this paper we consider the task of estimating the non-zero pattern of the sparse inverse covariance matrix of a zero-mean Gaussian random vector from a set of iid samples. Note…
cs.LG2011★ 59 cited
On Learning Discrete Graphical Models Using Greedy Methods
Ali Jalali, Chris Johnson, Pradeep Ravikumar
In this paper, we address the problem of learning the structure of a pairwise graphical model from samples in a high-dimensional setting. Our first main result studies the sparsist…