查询词典 covariance function

In this text, we discuss the method of estimating parameter that the density of explains variable of having measurement error is not abridge, we inquire the covariance of y and e^ and we can get a formula as follows

本文要探讨的是在不限制有测量误差的解释变数的分布下估计参数的方法，首先探讨Y跟e^的共变异数关系，可以得到如下式子

Research and development staff are provided with on-line guidance for basic univariate and bivariate statistics, analysis of variance, analysis of covariance, and regression analysis, as well as graphical tools for producing scatter plots, histograms, and box-and-whisker plots.

研究和开发人员被提供了在线的基本单因素和二元统计、方差分析、协方差分析和回归分析以及图形化工具生产散点图，直方图，以及箱线图。

Commonly required capabilities for analysis of variance, analysis of covariance, and regression analysis are closely linked with graphical tools that produce scatter plots, histograms, box-and-whisker plots, and contour plots.

通常所需的方差分析，协方差分析和回归分析的能力是和能够产生散点图，直方图，箱线图，等高线图的图形化工具密切联系在一起的。

However, the prediction has a limitation of underestimation and overestimation at low and high temperature or moisture conditions respectively. In order to acquire accurate estimation of soil respiration, main suggestions for further study are to: combine measurement of soil respiration by chamber with carbon flux of ecosystem by eddy covariance, measure synchronously the biotic and abiotic factors, especially pay more attention to the role of modification of biotic factors on the performance of abiotic controllers, make more measurement in typical plant phenology phase and different weather conditions, and strengthen experimental manipulation and modeling.

但是在土壤温度及湿度过高或过低的情况下会出现较大的误差，为了尽量减少土壤呼吸的误差，给出了如下建议：①加强土壤呼吸和生态系统自动碳通量的结合研究；②加强对不同生物和非生物生态环境因子的同步测定，特别重视生物因子对非生物因子的调节和影响；③加强典型物候期和不同季节典型天气土壤呼吸的测定；④加强模拟试验研究和模式研究。

However, the prediction has a limitation of underestimation and overestimation at low and high temperature or moisture conditions respectively. In order to acquire accurate estimation of soil respiration, main suggestions for further study are to: combine measurement of soil respiration by chamber with carbon flux of ecosystem by eddy covariance, measure synchronously the biotic and abiotic factors, especially pay more attention to the role of modification of biotic factors on the performance of abiotic controllers, make more measurement in typical plant phenology phase and different weather conditions, and strengthen experimental manipulation and modeling.

但是在土壤温度及湿度过高或过低的情况下会出现较大的误差，为了尽量减少土壤呼吸的误差，给出了如下建议：①加强土壤呼吸和生态系统自动碳通量的结合研究；②加强对不同生物和非生物生态环境因子的同步则定，特别重视生物因子对非生物因子的调节和影响；③加强典型物候期和不同季节典型天气土壤呼吸的测定；④加强模拟试验研究和模式研究。

However, it is difficult to accurately evaluate the water budget and water use efficiency of alpine meadow because ther imbalance was prevalent in this study site the sum of sensible and latent fluxes estimated by eddy covariance technique (EC method is often less than the difference between the net radiation and the soil heat flux.

本研究于2005年和2006年夏季的7～8月，利用小型蒸渗仪、波文比与涡度相关技术三种方法对青藏高原高寒草甸生态系统昼间的蒸散量进行对比研究，定量分析三种方法所得结果的差异，并试图分析其影响因子，为利用和正确评价涡度相关技术测定该生态系统的碳水收支提供了理论依据。

Dependencies among random variables, interaction between expectations and covariances, as well as the correction of covariance to expectation are all considered.

在正态分布的前提下，利用线性化系统模型，从某些系统参数的概率特性计算出特征根实部的均值、方差，而全系统的稳定

In chapter three, using the special structure of the covariance matrix, we present a fast high resolution method based on QR decomposition.

探讨了利用QR分解得到信号与噪声子空间的可能性，提出了一类基于QR分解的高分辨快速算法及其改进型。

Both of them use a proportion of training instances for covariance matrix computation. The instance selection of one method is based on the included angle defined by testing and training instances; that of the other method is according to the hyperplanes determined by paired-class centers.

这两种方法皆只使用部份的训练资料来计算共变异矩阵，其中一种方法的资料选取方式是以验证和训练资料所定义的夹角为基础，而另一种方法下的资料选取则是根据两两群体中心所决定的超平面。

Usually, the mean covariance between original and filtered data was used to evaluate the power of NR.

以前，人们常用除噪前后的数据值之间的均方差来评价数据除噪的效果。

That's what makes this mod unique.

这也正是这个MOD独特。

I now feel furious and want to do something.

现在我觉得非常气愤，想做点什么。