When determining empirical formula with test method, estimation value of estimated parameter in regression equation which is obtained with least square method always is a long number.
用实验方法确定经验公式时，回归方程中用最小二乘方法求得的待估参数的估计值往往是一个很长的数。
After expounding the modeling method of multiple linear regression based on least square algorithm, the thermal distortion model is modelled.
在介绍了基于最小二乘法的多元线性回归建模方法后，建模了机床的热变形实时预测模型。
The superiority of the classical least square method is lost due to the morbid of designed matrix in large-type linear regression analysis.
在大型线性回归分析中，由于设计矩阵的病态使得经典的最小二乘法失去了优良性。
Multiwavelength - derivative method and linear regression spectrophotometry combined with least square method are applied to the simultaneous determination of NO_3 and NO_2 in water.
研究了利用多波长导数—最小二乘回归—紫外分光光度法同时测量水中NO_3和NO_2离子含量的方法。
In this paper a "compact least square method" is presented to overcome the ill-conditioned coefficient matrices in the linear regression models.
本文提出一种克服线性回归模型系数矩阵病态的“紧致最小二乘估计”。
Based on the basic principle and modeling method of partial least-square regression (PLSR), establishing the mathematical model for parameter prediction of the steam turbine units.
根据偏最小二乘回归的基本原理和建模的基本思路，建立数学模型并将其应用于电厂机组的参数预测中。
The present paper presents a new NIR multi-component analysis method with Artificial Neural Network (ANN) and Partial Least Square Regression (PLS).
提出了一种神经网络(ANN)和偏最小二乘法(PLS)结合的新的近红外(N IR)多组分分析法。
Parameters of aircraft effectiveness is analyzed, and a new effectiveness forecasting method based on partial least-square regression is proposed.
通过实例与神经网络法的结果进行了比较，结果表明偏最小二乘回归更精确和简单。
Results there is multi-collinearity bias in the result of the least square estimation trend-surface model, use the method of ridge regression can control the multi-collinearity bias.
结果趋势面分析往往存在共线性偏倚，利用岭回归趋势面分析可以在一定程度上控制共线性偏倚。
Multiwavelength linear regression spectrophotometry combined with least square method is applied to the simultaneous determination of NO3 - and NO2 - in environmental water.
本文研究了利用多波长最小二乘回归- 分光光度法同时测定环境水中的NO3-和NO2- 离子含量的方法。
The regression method of rheology parameter for non-Newtonian fluid is obtained by the least square method.
同时根据最小二乘法原理得出确定非牛顿流体流变参数的回归分析方法。
In first the linear regression model resulted from least square method is presented and its disadvantage is analyse, great forecasting error exists when extreme abnormal case exists.
本文先介绍了用最小二乘法进行线性回归预测的方法，并分析了其不足，即当存在着极端的异常情况时，往往存在着较大的预测误差。
Based on this, an on-line evaluation model of process stability with statistical method and partial-least-square regression (PLSR) was set up which overcome the multicollinearity of input parameters.
采用统计分析和偏最小二乘回归方法提出了过程稳定性在线评价模型，克服了输入变量严重多重相关性的问题。
The model structure is determined by AIC and stepbystep regression arithmetic, parameters of the model are estimated by the least square method.
模型结构采用AIC准则法和逐步回归筛选法综合确定，模型参数采用最小二乘法估计。
Because the separation for GISE is an almost singular regression problem, the classic least square method and principal component method are not satisfactorily for solving the problem.
由于工具误差分离存在着很强的复共线性，传统的最小二乘方法与主成分方法不能很好的解决这一问题。
Trial-and-error method of the linear regression is introduced to determine the reasonable range of geological parameters. And the nonlinear least square method to calculate OGIP.
采用直线回归的试算法确定气藏合理地质参数的范围，介绍了非线性最优化天然气储量的计算方法。
Then the fitting relationships between the longitudinal wave velocity of rock masses and deformation moduli are established. Method of least square regression is used for deformation data processing.
用刚性圆形承压板法进行岩体变形试验，建立了岩体纵波波速与变形模量的拟合关系，用最小二乘回归法处理变形数据。
In the method, the least square regression combined with the treatment of selective average is used to deal with the abnormal equations.
该方法运用最小二乘回归法和抛弃平均法消除病态方程组。
In this paper we get the estimation of time-varying parameters in linear regression model with ARMA noise by the least square method and discuss the consistency of the estimation at the same time.
本文利用最小二乘估计给出噪声为ARMA序列线性模型中时变参数估计，并讨论了估计量的相容性问题。
Least-square principle method was used to process experimental data and the regression line obtained. The failure mechanism of the He-Ne laser tube under different current has been analyzed.
采用最小二乘估计法对试验数据进行了拟合，得到了回归直线，并分析了不同电流下激光管的失效机制。
Least-square principle method was used to process experimental data and the regression line obtained. The failure mechanism of the He-Ne laser tube under different current has been analyzed.
采用最小二乘估计法对试验数据进行了拟合，得到了回归直线，并分析了不同电流下激光管的失效机制。
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