72 citations · 132 across the 17 of their papers we have counts for
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math.ST2018★ 20 cited
Model-assisted inference for treatment effects using regularized calibrated estimation with high-dimensional data
Zhiqiang Tan
Consider the problem of estimating average treatment effects when a large number of covariates are used to adjust for possible confounding through outcome regression and propensity…
math.ST2015★ 8 cited
Improved minimax estimation of a multivariate normal mean under heteroscedasticity
Zhiqiang Tan
Consider the problem of estimating a multivariate normal mean with a known variance matrix, which is not necessarily proportional to the identity matrix. The coordinates are shrunk…