To introduce sample selection model and its estimation method.
介绍样本选择模型及其估计方法。
The proposed sample selection model is tested on UCI dataset, which proves the efficiency of the model.
利用UCI标准数据集对本文所提出的样本选择模型进行测试，实验结果证明了该模型的有效性。
The proposed sample selection model is tested on UCI dataset, which proves the efficiency of the model.
利用UCI标准数据集对本文所提出的样本选择模型进行测试，实验结果证明了该模型的有效性。
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