224 citations · 443 across the 6 of their papers we have counts for
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math.ST2012★ 15 cited
Calibrated Elastic Regularization in Matrix Completion
Tingni Sun, Cun-Hui Zhang
This paper concerns the problem of matrix completion, which is to estimate a matrix from observations in a small subset of indices. We propose a calibrated spectrum elastic net met…
math.ST2012★ 68 cited
Sparse Matrix Inversion with Scaled Lasso
Tingni Sun, Cun-Hui Zhang
We propose a new method of learning a sparse nonnegative-definite target matrix. Our primary example of the target matrix is the inverse of a population covariance or correlation m…