Study onmeasurement reliability based on Liu estimator

摘要

In this paper,weintroduce the Liu estimator in the measurement process as an alternativemethod to the ordinary least squares estimator. To compare the Liu estimator and the ordinary least squares estimator under the reliability criterion, a simulation study is conducted. Simulation study results show that the Liu estimator is an effective method to replace OLS estimator in process measurement. When the Liu parameter is chosen from a reasonable range, the Liu estimator is superior to the ordinary least squares estimator in terms of reliability.