93 citations · 248 across the 30 of their papers we have counts for
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math.ST2013★ 17 cited
Optimal variance estimation without estimating the mean function
Tiejun Tong, Yanyuan Ma, Yuedong Wang
We study the least squares estimator in the residual variance estimation context. We show that the mean squared differences of paired observations are asymptotically normally distr…
math.ST2013★ 93 cited
Efficient estimation in sufficient dimension reduction
Yanyuan Ma, Liping Zhu
We develop an efficient estimation procedure for identifying and estimating the central subspace. Using a new way of parameterization, we convert the problem of identifying the cen…