说明:双击或选中下面任意单词,将显示该词的音标、读音、翻译等;选中中文或多个词,将显示翻译。
您的位置:首页 -> 词典 -> 间接最小二乘
1)  indirect least squares estimation
间接最小二乘
1.
The analysis expressions of indirect least squares estimation,two -step least squares estimation, and three-step least squares esthation are given.
给出了带线性方程间限制的联立方程组模型的可识别定义及间接最小二乘估计量、两步最小二乘估计量、三步最小二乘估计量的解析表达式。
2)  Marshall demand function
间接最小二乘法
3)  direct least square
直接最小二乘
1.
The algorithm for direct least square ellipse fitting based on robust estimation is introduced, which integrates the gross error detecting by robust estimation and conic parameter constraint of ellipse.
将稳健估计剔出粗差与椭圆的二次曲线参数限制条件相结合,给出了基于稳健估计的直接最小二乘椭圆拟合算法,以Matlab语言实现上述算法,并采用上海长兴岛至浦东越江隧道工程实测数据进行验证。
4)  iPLS
间隔偏最小二乘
1.
In order to remove the effects of scattering and noise on multivariate calibration of IR spectral signals,orthogonal signal correction(OSC) was used as a method to preprocess the infrared spectra of the hydrocarbon source rocks to be quantitatively determined,thus to establish the calibration model of hydrocarbon source rocks before and after pretreatment by inetval partial least square(iPLS).
文章利用正交信号校正算法(OSC)作为一种光谱过滤手段,并与间隔偏最小二乘(iPLS)相结合,有效地消除了粉末状样品散射光的影响,可以显著提高烃源岩红外光谱预测模型的准确性,使得红外漫反射光谱技术在石油录井中有了广阔的应用前景。
5)  least square method
最小二乘
1.
Research on data fusion algorithm of redundancy information based on least square method
基于最小二乘法的冗余信息数据融合算法实现
2.
The relative coordinate for straightness error is set up, the discrete values in coordinate are linked based on least square method, then coordinate transform is realized, some eddy genes and contained area conforming to least condition are confirmed using numerical method, the evaluation of straightness error is achieved by compare.
建立直线度误差的相对坐标,基于最小二乘对坐标内的离散点进行曲线拟合,而后对其进行相似坐标变换,利用数值分析方法得到坐标变换的一系列旋转因子(旋转参数)与满足最小条件的包容区域,最后通过比较法实现对直线度误差的数值判定。
6)  least square
最小二乘
1.
A spatial error concealment based on least square filter;
基于最小二乘滤波器的空域视频掩盖算法
2.
Application of non-uniform B-spline least square in GPS leveling height fitting;
非均匀B样条函数的最小二乘法在GPS水准拟合中的应用
3.
An Algorithm associated with Least Square (LS) and Adaptive Kalman Filtering;
一种最小二乘与自适应Kalman联合滤波算法
补充资料:非线性最小二乘拟合
分子式:
CAS号:

性质:用最小二乘法拟合非线性方程。有些变量之间的非线性模型,通过变量变换可以化为线性模型,此称为外在线性。而有些变量之间的非线性模型,通过变量变换不能化为线性模型,通称为内在非线性。对于非线性模型y=f(ξ,θ)+ε,其残差平方和。S(θ)是θ的函数,当模型关于θ是非线性的,正规方程关于θ也是非线性的。基于使残差平方和s(θ)达到极小的原理求出θ的估计值,拟合非线性回归方程。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条