Partial Root Root Estimator of Parameters in Gauss-Markov Model
Gui Qing · Journal of The Pla Institute of Surveying and Mapping · 2001
In this paper, a new biased estimator called partial root root estimator is proposed through analyzing the corresponding properties of root root estimator, Stein shrunken estimator, and Sclove partial shrunken estimator. Its properties are discussed. The computational results demonstrate that the partial root root estimator can improve the LS estimator when the design matrix is ill conditioned.