查询词典 least squares

Based on the Mincer equation extended by the analysis of typical data,the use of least squares,measu...

基于明瑟扩展方程，通过对典型数据的分析，使用最小二乘法，测量了年龄、教育、经验等因素对第二代农民工劳动收入的是否存在影响，以及影响的方向和程度，并使用多分变量逻辑斯蒂回归(Multinominal Logistic Regression)方法进行了进一步验证。

The corresponding least-squares solution with minimum norm can be also obtained by choosing a kind of special initial matrices.

在不考虑舍入误差的情况下，对任意的初始矩阵都可以在有限步计算出它们在给定矩阵集合中的一个最小二乘解，若选取特殊的初始矩阵，则可以得到相应的最小范数最小二乘解。

Moreover, Problem I can be transformed equivalently into a problem that finding the minimum norm least-squares solution of a new inconsistent matrix equation.

而问题Ⅰ可等价转化为求一个新的不相容矩阵方程的最小范数最小二乘解的问题。

Then based on the least squares support vector machine method, the modificatory model of the main environmental factors effect on the tanδ was advanced, and the genetic algorithm method was used to optimize the parameters of this model.

根据人工气候室内变压器套管tand的在线测量试验结果，分析了环境因素对电容型设备tand的影响情况，提出了基于最小二乘支持向量机的主要环境因素对tand影响的修正模型，并采用遗传算法优化了支持向量机的参数。

Trends calculated by least squares method, including 10 years of moving average is calculated.

趋势计算利用最小二乘法，其中包括10年滑动平均的计算方法。

While dealing with the multicollinearity of design matrix X , the ordinary least squares estimation is always helpless.

基于最小二乘法处理病态阵X共线性问题上的不足，线性有偏估计是改进最小二乘估计最直接的方法。

Two popular chemometric methods are available to analyze three-way data, parallel factor analysis and multilinear partial least squares regression.

两种流行的化学计量学方法可用于分析三路数据，平行因子分析和多偏最小二乘回归。

Lagrange multiplication operator was used to analyze the parameter estimation equation for obtaining the optimized estimation of parameters. Computer simulation result showed that this method is better than traditional least squares estimation.

计算机仿真的结果表明，该优于传统的最小二乘估计法，获得的估计参数是渐进无偏的，获得的估计参数的辨识精度更高，该参数约束估计法在系统辨识和参数估计领域具有极其重要的实际应用价值。

Considerable work and progress have been made over the past decades on nonsingular linear systems and linear least squares problems.

最近几年，一批研究工作者在非奇异线性方程组和线性最小二乘问题的条件数方面做了大量的工作，并取得了显著的进展。

Mathematical statistics ; least squares method ; probability ; normal distribution ; error function

数理统计学；最小二乘法；概率；正态分布；误差函数

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。