numerical estimator 中文意思是什麼
numerical estimator
解釋
數字估值器-
When the estimator is unbiased, the numerical estimate is frequently also called unbiased.
當估計量無偏時，數字估計值也常叫做無偏的。 -
The major characteristics of prr estimator lie in that it is a partial shrunken estimator. theory analysis and numerical simulation demonstrate that the two estimators can effectively improve the ls estimator
通過理論分析和算例分析說明這兩個有偏估計是確能有效改進ls估計的新的有偏估計。 -
In order to reduce the deficiencies of ridge estimator, stein shrunken estimator and principal component estimator, two new biased estimators, so - called combining ridge and shrunken estimator, and, combining ridge and principal component estimator, are constructed respectively. their good properties in the mean squared error and the numerical value stability are investigated, the determination of biased parameter of the estimators are discussed, and some important conclusions are obtained, respectively. theory analysis and the computational results demonstrate that the two estimators potential estimator in surveying adjustment
本文針對嶺估計、 stein均勻壓縮估計和主成分估計存在的缺陷，構造了兩種新的有偏估計：嶺?壓縮組合估計和嶺?主成分組合估計，討論了兩種新估計在均方誤差意義下和數值穩定性方面的優良性質，討論了有偏估計中偏參數的選取問題，通過理論分析和算例分析說明這是兩種很有潛力的有偏估計。
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