查询词典 least squares

In the fitting of the actual operation, using Matlab graphics software and the use of least squares spline interpolation function is more convenient and have good results in the means.

在拟合曲线的实际操作中，借助Matlab绘图软件使用最小二乘法和三次样条插值函数是较为方便且有良好效果的手段。

On the basis of the principle of the least-squares approximation and steepest descent method and the average of the given discrete points, the space linear fitting can obtained, at the same time through a test proved the algorithm is correct.

其中空间直线拟合根据最佳平方逼近原理和最速下降法以及所给离散点的均值求得，并通过试验验证了此算法运算结果的正确性。

Second, for removing the influence, we develop the least squares method based on the stereographic projection implemented on a three-dimensional plane. It is described by the expressions:(4.35挆4.39). This method resolves some problem in Multi-sensor alignment on the same platform when the attitude errors are relatively small.

其次为了克服基于二维区域性平面中立体投影所产生的影响，本文推导了基于三维立体投影的最小二乘配准算法，其实现过程见式4.35～4.39，在传感器姿势误差较小的情况下，此算法解决了基于同一平台的多传感器配准中存在的问题。

Firstly, least-squares solution for the inverse problem of real matrices with a submatrix constraint is proposed.

研究了子阵约束下实矩阵反问题的最小二乘问题。

Finally, least-squares solution for the inverse problem of bisymmetric matrices with a submatrix constraint is proposed.

研究了子阵约束下双对称矩阵反问题的最小二乘问题。

Secondly, least-squares solution for the inverse problem of real symmetric matrices with a submatrix constraint is proposed.

研究了子阵约束下实对称矩阵反问题的最小二乘问题。

On the ground that the covariance between the disturbing gravity field elements is not isotropic, the covariance matrix has a complicated structure (its submatrix being not repetitive Toeplitz matrix) and thus its degree cannot be degraded with transformation matrix method, so it cannot be put into practice. So far, the application of least squares collocation to the modeling and data processing of the horizontal disturbing gravity field observations has not been found in literature.

由于水平扰动场元之间的协方差并非各向同性，导致协方差矩阵结构复杂(子矩阵不是 Toeplitz 循环阵)，不能利用变换矩阵将其降阶，无法付诸实践，迄今尚无最小二乘配置理论应用于水平扰动场元观测量的模型化公式和数据处理方法。

The sum of the squares of the deviation of all points from the best line is the least it can be.

各点与最佳线偏离的平方之和，是所能获得的最小值。

Based on the theory of least squares estimation, the paper established strict adjustment model for irregular Digitized Curves in GIS.

基于最小二乘原理，建立了GIS中不规则曲线数字化数据处理的严密平差模型。

Based on the chaotic characteristic of time series of power loads and combining the phase space reconstruction theory of chaotic time series and regression theory of supporting vector machines, a short-term load forecasting model based on chaotic characteristic of loads and least squares SVM is built.

以负荷时间序列的混沌特性为基础，结合混沌时间序列的相空间重构理论和支持向量机的回归理论建立了一种基于负荷混沌特性和最小二乘支持向量机的短期负荷预测模型。

The network space is the typical form of abstract space when it comes to the digital stage.

网络空间是抽象空间数字化阶段的典型形式。

The Notarial System,as the system of judicial certification in our country,is both the constructor and the defender of social credit system,It has its special value and function in the social honesty.

公证制度作为我国司法证明制度，既是社会信用体系的建设者，同时也是社会信用的捍卫者，在诚信中有其特殊的价值和功能。