least square regression

The infinite dilution activity coefficient γ ∞ was measured by specific retention volume method through gas chromatography, and the theoretical yield was calculated by using the least square regression method.

通过气相色谱比保留体积法测定了顺丁烯二酸酐在有机溶剂中的无限稀释活度系数γ∞，采用最小二乘法回归得顺丁烯二酸酐的理论收率。

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The accuracy and precision of this method are better than those of least square regression.

与最小二乘回归法比较,提高了测定结果的准确度和精密度.结果满意.

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The SVM method performed better than ANN and the least square regression methods. This study indicated that the prediction of NSP could be improved by the SVM approach under limited data availability.

经过与最小二乘支持向量机、BP神经网络和最小二乘回归方法预测结果比较，表明SVM方法预测精度要优于后两者，可用于有限资料条件下非点源负荷预测。

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Evaluation of standard Gibbs free energy for montmorillonite formation by iterative least square regression method

迭代最小二乘回归方法估算蒙脱石标准生成Gibbs自由能ΔG f~0的研究

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Least square regression method was used for MTF curve ( at logarithmic axis) fitting with quadratic equation so as or cubic equation to obtain the desired parameters.

用最小二乘法对MTF曲线（对数坐标下）进行二、三次项拟合，求得拟合参数。

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Methodology: The utilization model is a function of the supply, need and socioeconomic variables by two stage least square regression, which can provide legitimate need variables, standardized two week prevalence rate.

方法：采用两阶段最小二乘法估计利用与需要、供给和社会经济学因素的关系模型，找到了合理的需要变量&标化两周患病率。

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