查询词典 estimate

This paper adopts spatial parallelogram to estimate uncertainty of arbitrary points inside and outside the spatial triangle plane, The estimate formulae of uncertainty of spatial triangle plane and normal vector are deducted.

随着GIS在环境仿真、城市规划、气象学、自然灾害预测预报、地质采矿等领域的广泛应用，空间数据库日渐庞大，因此空间数据质量的好坏直接影响着GIS应用、分析、决策的正确性和可靠性

A point estimate may be the researcher's best guess at the population value, but, by its nature, it provides no information about how close the estimate is "likely" to be to the population parameter.

点估计本身并不能告诉研究者该估计值和总体参数的距离到底有多近。

Based on the proportion estimate and the mean estimate in sampling technology,the authors of this paper put forward the method of ratio estimator in sampling technology and makes a detailed analysis of method.

在抽样技术比例估计与均值估计的基础上，提出了抽样技术的比率估计法，并对其作了详细的分析，同时，通过具体问题的讨论，说明了比率估计法所具有的优越性；针对各个样本比值有比较大的差别时所产生的不稳定性，运用聚类分析的方法提出了具体的比率估计法的改进公式，减少了噪声数据的影响，得到了较高的准确度。

Therefore, when the grid technique or the district was applied to regionalize spatial scale, individual soil profile are needed more to reduce uncertainties of the estimate of soil organic matter in the grid or the district with spatial scale up, but the uncertainties are smaller when using soil organic matter content in wellestimate gird or district to estimate the grid or district without available data by extrapolation.

因此，采用网格法或行政区划分空间区域，获得空间区域单元内土壤有机质含量或贮量的精确估算需要较多的剖面，但外推至数据不足的空间区域时，估算的不确定较小；采用土壤分类单元为空间区域单元，结果则相反。

Robust estimate and biased estimate of regression coefficients are two kinds of regression model fitting methods for non-optimal data.

回归系数的稳健估计和有偏估计是两种根据非典型数据建立线性回归模型的方法。

We follow the idea of sequential estimation method of Palandri (2007) but simplify the specification to estimate the correlations with BEKK specification proposing the Sequential-BEKK model using multistep Maximum likelihood estimation procedures to estimate.

通过运用BEKK模型模拟的数据，本文比较发现，Sequential-BEKK模型在进行样本内预测相关系数矩阵时，表现优于BEKK系列模型和OGARCH模型，稍差于CCC和Dec模型，但是Sequential-BEKK能够比其他模型更好的刻画相关系数的动态过程。

Under Etropy loss, this new estimate of the covariance matrix is its spectral decomposition estimate.

同时，我们证得：在一些模型中，在Etropy损失下，新估计的风险函数比其谱分解估计，ANOVAE和MINQUE的风险函数小。

The modem spectral estimate and higher order spectral analysis are utilized to estimate the spectrum of the atom clock data respectively, and the noise characteristic is analysed by fitting to the spectrum of the atom clock.

利用现代谱估计法和高阶谱法分别估计原子钟数据的功率谱，并对功率谱进行拟合，可分析原子钟的噪声特性。

It decomposes the traditional state vector into the sum of the nominal filtered estimate and the remainder estimate.

分部估计方法将传统的状态估计分解为标称滤波估计和余项估计两项相加的形式。

We can therefore refer to this statistical estimate taken from the evolutive impedance distribution as a 'stationary impedance' estimate.

因此，我们可以参考这个统计估计，采取从演化阻抗分布作为一个'静止阻抗估计。

This is not an ordinary box, which is used as a background picture of the dialog box, very pretty.

详细说明：这可不是一个一般的对话框，它是用图片作为背景的对话框，非常好看。

Conceal me what I am,and be my aid for such disguise as haply shall become the form of my intent.

遮掩我的身份，帮助我，我的面具将成为我的目的。