协方差函数

词组短语

covariance function

与协方差函数相关的网络例句 [注：此内容来源于网络，仅供参考]

After a power spectrum is constructed, empirical wavelet coefficients are used to detect the jump points in the function to obtain the strong consistent estimator of the position and number of the frequencies. Numerical simulations show this method is reliable.

根据它们的协方差函数可以表示为一个Fourier级数，而其Fourier系数可通过协方差函数的逆变换得到的特性，我们对于零均值的近周期相关序列构造了类似于周期图的函数，并构造其经验小波系数，利用频率处于此函数的尖点的特性，以及此性质在经验小波系数中的反映，来确定频率的个数和位置，所有的估计量都是强相合的，此外，数值模拟的结果表明，我们的方法是有效的。

Based on this, a method to estimate kernel parameters using the covariance function of the samples is presented.

证明了对于径向基核函数而言，采用变异函数估计核参数与采用协方差函数估计核参数的一致性。

Windows evaluation algorithm based on covariance function was proposed to evaluate the measure variance of electronic compass and micromechanical gyroscope.

提出了基于协方差函数的加窗估计算法，用于在线估计电子罗盘和微机械陀螺的测量方差。

Considering that the covariance function could not exist in some conditions, we put forward the idea of using the variogram function as a substitute for the covariance function and prove their equivalence.

考虑到在某些情况下协方差函数可能不存在，因此考虑用变异函数来代替协方差函数估计径向基核函数的宽度参数。

The proposed method first employs covariance matrix tapers to obtain the interference covariance function and its corresponding spatial spectrum in non-ideal scenarios.

该方法首先利用协方差矩阵加权得到非理想情况下的干扰协方差函数和对应的空间谱，然后根据周期延拓后的干扰空间谱估计干扰自由度。

Collocation needs to know the covariance matrix of the signal vector,which is usually evaluated by a chosen covariance function and corresponding coefficient fitting.

拟合推估解算必须首先求得信号向量的方差协方差矩阵，该协方差矩阵一般通过选定的协方差函数，并通过已测点数据进行拟合得到。

This PPT introduces covariance function and its formula for calculating the variation function and its formula, Kriging interpolation process, and finally given an example based Kriging interpolation.

详细说明：本PPT介绍了协方差函数及其计算公式，变异函数及其计算公式，克里格插值方法的过程，最后给了一个基于克里金插值的实例。

The paper studies the form of the result of SVM with covariance function as the kernel function under some conditions, and draws the conclusion that Kriging is equivalent to SVM under those conditions. Based on the conclusion, we put forward the idea of using the covariance function as a substitute for the RBF kernel function of SVM.

摘要研究了支持向量机(support vector machine，SVM)方法在一定假设条件下，核函数取为样本协方差函数时解的具体形式，得出了在该假设情况下SVM方法等价于克立格方法的结论，提出了用协方差函数作为SVM核函数的思想。

This paper discusses the estimation method of wave spectrum by covariance functional method.

黄海；平均波高；海浪谱；协方差函数；海浪频谱；本文用协方差函数法探讨了海浪谱的估计方法。

After studying this phenomenon, the author finds that, the covariance matrix of the complex expressions of horizontal gradients of the disturbing gravity field elements has a structure of blockwise repetitive Toeplitz matrix, though the covariance within the disturbing gravity field elements is still anisotropic. Therefore, the collocation problem of the complex combination of horizontal components is similar to that of gravity anomaly, which makes the degradation be able to be completed by FFT transformation matrix.

作者研究发现，利用水平梯度的复组合，即复数表示后，扰动重力场元复组合之间的协方差函数尽管还是各向异性，但它们对应的协方差矩阵却具有分块 Toeplitz 循环阵的结构，因而水平分量复组合的配置问题与重力异常的配置问题相似，可以利用傅立叶变换矩阵进行降阶处理。

与协方差函数相关的网络解释 [注：此内容来源于网络，仅供参考]

autocovariance function：自协方差函数

autocovariance 自协方差 | autocovariance function 自协方差函数 | autodistributivity 自分配性

covariance function：协方差函数

协调世界时时号 time signal in UTC | 协方差函数 covariance function | 协方差函数 covariance function

cross covariance function：互协方差函数

cross correlation function 互相关函数 | cross covariance function 互协方差函数 | cross cut 横切线

cross covariance function：交互协方差函数

cross-coupling optical beam 交叉耦合光束 | cross-covariance function 交互协方差函数 | cross-cultivation 交叉耕作

sample covariance function：样本协方差函数

sample covariance coefficient 样本协方差系数 | sample covariance function 样本协方差函数 | sample covariance matrix 样本协方差矩阵

covariance functional：协方差泛函数

covariance function 协方差函数 | covariance functional 协方差泛函数 | covariance matrix 方差矩阵

sample covariance：样本协方差

"sample change compaction ","选样变更紧致法" | "sample covariance ","样本协方差" | "sample function ","样本函数"

sample covariance coefficient：样本协方差系数

sample covariance 样本协方差 | sample covariance coefficient 样本协方差系数 | sample covariance function 样本协方差函数

sample dispersion：样本方差

sample covariance matrix 样本协方差阵 | sample dispersion 样本方差 | sample function 样本函数

covariance for stratified sampling：分层抽样协方差

covariance between inheritance and environment 遗传环境协方差 | covariance for stratified sampling 分层抽样协方差 | covariance function 积差函数,协方差函数=>共分散関数