当样本量较大时，QIF方法表明工作相关阵的选择等价于无偏估计方程的选择。
When the sample size is great, QIF approach shows that the selection of working correlation is same to the selection of unbiased estimating equation.
在相对合理的样本空间中采用偏最小二乘回归建立模型。
Then it builds a model by partial least squares regression on the obtained sample space.
该算法将主动式学习、有偏分类和增量学习结合起来，对相关反馈过程中的小样本有偏学习问题进行建模。
The algorithm combines active learning, biased classification and incremental learning to model the small sample biased learning problem in relevance feedback process.
方法采用偏最小二乘法(PLS)对校正集进行校正，并对预测集中的样本进行预测。
Methods Partial least square (PLS) method was used to train the training sets and predict the predictive sets.
我们还发现，工资方程并不存在显著的自我选择偏误，这表现出样本中职工的工作流动性还不高。
Besides, we find no significant self-selection bias in the wage equations, which suggests poor job mobility in our samples.
“母体”与“样本”之所以有两种表达公式，是因为一个是有偏估计，另一个则不是。
The reasons there are two main expressions for population and sample" is that one is biased estimator and the other is not."
讨论多阶段抽样比率估计及其样本量选择的问题，给出了比率估计抽样均方误差的近似公式及其渐近无偏估计的公式。
We give the approximation formulas of the variance of the sample ratio estimator for a population mean and its asymptotically non-biased estimator in multi-stage sampling.
采用偏最小二乘法分别建立校正集样本中5个检测指标的NIR定量分析模型，并对验证集样本进行预测。
The NIR quantitative analysis models of 5 detection indexes in validation set was established using partial least squares(PLS) method.
采用偏最小二乘法分别建立校正集样本中5个检测指标的NIR定量分析模型，并对验证集样本进行预测。
The NIR quantitative analysis models of 5 detection indexes in validation set was established using partial least squares(PLS) method.
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