1) least-square solution of linear system
线性系统最小二乘解
2) nonlinear least-square solution
非线性最小二乘解
3) nonlinear least square
非线性最小二乘
1.
Implementation of nonlinear least square with global convergence in Forstat
全局收敛的非线性最小二乘在Forstat中的实现
2.
The Gauss-Newton method is applied to solve the nonlinear least square equations and a simple and applicable iterative formula is deduced, which is locally convergent and divergent sometimes.
介绍了采用非线性最小二乘方法回归乙烯深度氧化反应动力学方程。
3.
Through transferring solution procedure,the problem was inverted into nonlinear least square optimization process with constraint conditions in two stages using function lambertw and function lsqnonlin.
对生态学领域的高精度参数确定问题提出了一种解决方案,结合实例,利用肖维奈特准则进行回归分析筛选数据,利用MATLAB工具中vpa和dlmwrite函数来保证数据传递的精度,并变换求解格式利用lambertw函数和lsqnonlin函数将问题转化为带约束条件的非线性最小二乘两级优化过程加以解决。
4) nonlinear least squares
非线性最小二乘
1.
Algorithm of nonlinear least squares adjustment of any plane networks with coordinates computed automatically;
任意平面网坐标自动解算的非线性最小二乘平差算法
2.
A new newton iterative algorithm for solving nonlinear least squares problem;
一种新的求解非线性最小二乘问题的牛顿迭代算法
3.
Unified model and ill-posed property of numerical iterative formula for solving nonlinear least squares problem;
非线性最小二乘问题数值迭代法的统一模型及其不适定性
5) linear least square
线性最小二乘
1.
For fixed targets and moving constant velocity targets, deterministic parameters calculation and linear least square algorithms are applied to set up mathematic model and to do some algorithm simulations.
对固定目标和匀速直线运动目标,分别应用确定性计算和线性最小二乘法进行数学建模及其仿真。
6) linear least square method
线性最小二乘法
1.
This paper analyses the systemetic error of calculating formula of extremum detection depth method of undergound metal pipe detector,fites for experimental data by means of linear least square method and obtains the modifying factor of the formula.
本文首先分析了沿用已久的电磁式地下金属管线探测仪极值测深法计算公式存在的系统误差，然后采用线性最小二乘法对实测数据进行拟合，从而给出符合实际的修正因
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。
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