查询词典 estimation

First, the concept emergence probability is assumed to be a random variable with a priori Beta distribution. Second, its priori parameters are designated by the distance-based similarity algorithm, calculated by Bayesian Estimation.

该算法首先假定概念出现概率是符合Beta分布的随机变量，然后基于语义距离的相似度算法计算先验参数，并根据统计样本计算该先验分布下基于最小风险的贝叶斯估计后验参数。

Study is made of Bayes estimation of the error rate proportionality parameter θ in the JM model for testing software reliability,leading to the a priori,a posteriori distribution of θ and the coresponding Bayes estimates on the Bayes assumption,Jeffrey s principle and conjugate dis- tribution,together with their comparison and discussion.

讨论了软件可靠性模型——JM 模型中故障率比例参数θ的 Bayes 估计问题，分别求出了在贝叶斯假设、杰弗莱原则和共轭分布原则下参数θ的先验分布、后验分布及相应的 Bayes 估计，并对它们进行了比较和讨论。

The supplies catenary risk consequence estimation that does not decide abiogenesis risk incident is brought about is the difficulty place that the risk estimates.

不确定偶发风险事件导致的供应链风险后果的估计是风险估计的难点所在。

It also applies kernel density estimation method to investigate the accumulative relative productivity and the dynamic evolvement of its distribution. The result shows that there exists no country level absolute convergence of the provincial productivity whether incorporating environmental factors or not. The provincial TFP index is in a divergence trend and the provincial technical efficiency index has a convergence trend when incorporates environmental factors.

无论是否考虑环境因素，代表东、中、西三大区域的虚拟变量均不显著，表明不存在俱乐部收敛；当所考虑的控制变量为基础设施水平、工业化水平、经济开放度、能源强度时，所有的控制变量皆不具有统计显著性，表明不存在条件收敛。

It is useful to solve accretion of estimation error and filter divergence in practice.

这将有助于解决卡尔曼滤波器在实际应用中估计误差增大和滤波发散等问题。

However, such calculation accuracy cannot satisfy the demand of production. The accuracy of volume calculation may be improved by the three-dimensional orebody model; while the accuracy of grade assessment can be improved by estimation for random location of orebody with space interpolation.

以三维矿体模型为基础计算矿体体积能够提高体积计算精度，以空间插值技术对矿体任意空间位置的品位进行估值，有助于提高品位估值的精度。

Estimation of the corrosion losses by the acidic rain in China .

中国的酸雨对材料腐蚀的经济损失估算。

The estimation model of acidification capacity in a regional scale is established on the basis of geographic information system.

建立了以地理信息系统为技术支持的区域水环境酸化容量的评估模型。

Torpedo ; acoustic image ; scale identification ; target highlights ; direction of arrival estimation ; decoherent multiple signal classification method

鱼雷； 声成像；尺度识别；目标亮点； DOA估计；解相干MUSIC算法

The linear reconstruction approach using Green-Gauss gradient estimation is applied in order to obtain second order spatial accuracy. A new gradient estimation based on the weighted average of Barth and Jespersen's three point model limiter is employed to minimize the numerical oscillations around solution discontinuities.

利用格林－高斯公式对控制体内的变量进行线性重构，获得空间二阶精度，并采用Barth型限制器以抑制数值解的振荡。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷