And estimated the unknown quantity using the methods of least square estimation and local polynomial estimation, obtained the consistency of estimation under certain condition.
在半参数回归模型中采用最小二乘估计方法结合局部多项式方法来估计未知量，在一定条件下得到了估计量的相合性。
The global method not only overcomes the limitations of the local methods mentioned above, but also outperforms the polynomial spline method in some cases.
该方法不但能克服上述局部方法之不足，而且在一定情形下优于多项式样条方法。
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