covariance

covariance

 英 [kəʊ'veərɪəns]

  • n.【统】协方差;共离散
  • 网络共变异数;协变;协变性

英汉解释

n.
1.
【统】协方差,协变性;共离散

英英解释

n.

例句

However, the covariance decomposition of the PS has not previously been used to evaluate medical judgment.

然而方差分解PS以前未曾用于评价医疗判决

The correlation coefficient, like the covariance, is a measure of the extent to which two measurement variables "vary together. "

方差一样相关系数描述两个测量变量之间离散程度指标

Both the correlation coefficient and the covariance are measures of the extent to which two variables "vary together. "

相关系数方差描述两个变量离散程度指标

The Covariance tool computes the value of the worksheet function COVAR for each pair of measurement variables.

方差工具测量变量计算工作表函数COVAR

Covariance Analysis Describing function Technique (CADET) algorithm was used to analyze the precision of missiles remote control process.

方差分析描述函数CADET首次用于导弹遥控过程精度分析

IMITATING COVARIANCE MATRIX OF DISPLACEMENT DATA AND ITS APPLICATION IN CALCULATION OF CRUSTAL STRAIN FIELD AS A WHOLE?

位移观测方差矩阵模拟及其整体地壳应变应用

Finding Boundary Layer Top : Application of a Wavelet Covariance Transform to Lidar Backscatter Profiles .

发现边界小波方差转换应用反向散射廓线

Experimental Methods : Chart cycle, since the correlation and covariance method.

实验方法周期相关方差

The proposed algorithm decreases the dimensions of its covariance matrices and has high computational efficiency.

方法优点减少方差矩阵具有较高计算效率

Multiple Random Variables, Joint and Conditional Distributions, Independence, Covariance and Correlation.

多重随机变数联合条件分布独立变异与共相关

This demonstrates that it is necessary to carry out variance-covariance component estimation for the double- differenced GPS observables.

结论说明全球定位系统观测必要进行方差-方差分量估计

This article focuses on how to make a correct teaching assessing by means of covariance analysis and work out its operation by computer.

方差分析如何根据考试成绩正确评价教学效果有益尝试结果进行计算机模拟

By analyzing the weighted covariance matrix of a local neighborhood, its least-squares plane was estimated.

局部邻域进行加权方差分析估计最小平面

Simulation study shows unbiased fixed effects parameter estimation with covariance components estimation comparable to previous study.

仿真研究显示无偏固定效应参数估计方差分量估计误差相近前人结果

Inthe covariance model, gender differences are considered to be dynamic and to covary with the macro and micro contexts.

理论模型性别差异视为动态宏观微观环境变化变化

Simulation results show that due to the errors the rank of the covariance matrix will increase and the SINR performance will descend.

实验结果表明滤波器响应误差使相关矩阵增加SINR性能下降

At present eddy-covariance technique (ECT) is considered one of the most reliable methods in measuring CO2, heat and moisture fluxes.

目前相关认为国内外CO2、通量可靠方法

Moreover we studied also the natural boundary integral equations and its wavelet solutions. (3) estimation of the covariance matrix.

同时研究自然边界积分方程小波方法

Song, the theme of the poetry of the total quantity is over its covariance poems.

主题诗歌数量超过诗作总数

The coherent signals cause rank deficiency of the array covariance matrix, thus the performance of the processor deteriorates greatly.

接收信号相关性使阵列输出方差矩阵出现缺失现象因而传统信号处理算法性能恶化

In filtering calculation, strong tracking factor is introduced to modify priori covariance matrix to improve the accuracy of the filter.

滤波计算引入跟踪滤波因子修正滤波器状态方差矩阵滤波精度得以提高

Results Repeated measurement obtained reasonable results by the fixed and random effects along with efficient estimate of covariance matrix.

结果通过固定效应随机效应方差矩阵估计使重复测量数据得以合理分析

This method established is applicable to collision probability problem involving relative velocity and error covariance changing with time.

建立这种描述计算方法适用相对速度误差方差矩阵时间任意变化情况

Returns the population covariance of two series evaluated over a set, using the biased population formula.

返回序列偏差总体公式求得总体方差

Then mean and covariance are used to adjust the global brightness of the images to solve the problem of different illumination.

然后使用统计参数调整拼接图像整体亮度解决光照变化问题

Those little minus and addition signs are used to denote contravariance and covariance, respectively.

这些小小加号减号分别用来指出

Variance component model of the random effects of covariance matrix unit for the "Linear model introduction" matrix has been studied.

方差分量模型随机效应方差单位线性模型引论进行研究

Returns the sample covariance of two series evaluated over a set, using the unbiased population formula.

返回两个序列无偏差总体公式求得样本方差

Through the test, we obtain some meaningful results, which could provide some references to covariance function fitting.

通过实验得出一些有意义结果方差函数拟合提供一定参考

Note: Covariance analysis was performed to the difference of score before and after treatment by the score before treatment.

治疗症状积分变量治疗前后症状积分方差分析

An accurate estimate on the rank of the clutter covariance matrix (termed as clutter rank) is introduced and the lower bound is obtained.

准确估计稀疏雷达相关简称基础得到下界

Most of these methods fall into two categories: based on the crossing rate and based on the covariance of the received signal.

这些方法大致可以分为一类基于通过方法一类基于方差方法

Furthermore, the filtering error cross-covariance matrix is derived between any two sensor subsystems of stochastic singular systems.

得了随机奇异系统两个局部估计之间滤波误差方差

After inspecting the properties of the covariance matrix, a recursive method of system parameter estimation is derived upon LSE.

研究方差矩阵特性基础出一种最小辨识系统算法

A multi-step clustering algorithm with transformation-based and diagonal-covariance Gaussian mixture model (GMM) is advanced.

同时聚类算法融入其中使高斯混合模型找到适合模型混合

Order statistics have origin moments and central moments. mainly include expectation, variance and covariance.

次序统计原点中心主要期望方差方差

Values that describes the covariance and special constraints of the current generic type parameter .

组合用于描述当前型类型参数特殊约束

The model to calculate the pseudo measurement and the concomitant error covariance matrix is deduced for the planar circumstance.

推导情况确定测量相伴误差方差矩阵模型

The Covariance function evaluates the specified set against the first numeric expression, to get the values for the y-axis.

Covariance函数指定计算第一个数值表达式获得y

The results driven from regression analysis were verified by correlation analysis and covariance analysis.

同时相关分析方差分析方法计算效果检验