true mean

用法例句

Improving methods to calculate estimator minimum variance of the finite population mean;

总体均值估计量最小方差的改进

The parameter Estimation Based on Mean Absolute Deviation;

基于均值绝对离差的参数估计

In some applications of neural networks, such as failure detection based on neural networks, both the average and the standard deviation of mean squared prediction errors are needed to be small.

在基于神经网络的故障检测中 ,要求神经网络拟合某特定动态系统时均方预测误差的均值及其标准差均小 ,故在以均方预测误差的均值作为评价神经网络逼近特定动态系统性能的系统化交叉证实法的基础上进行改进 ,以均方预测误差的均值和标准差两个指标评价神经网络逼近特定动态系统性能 。

From the perspective of Gaussian distribution and stable distribution, and in the form of variance and average, the computing methods for return and risk of portfolio are compared.

从高斯分布和稳定分布角度， 以均值和方差的形式， 比较资本投资组合收益及风险的计算方法， 从中指出稳定分布的表象更切近于资本资产价格运动的现实表现。

Nine kinds of combining strategies are experimented in this paper:product,average,max,min,majority voting,rank-based voting,weighted voting,weighted probability,and best single combining,among which the three combining metho.

9种集成方法分别是乘法规则、均值、最大值、最小值、多数投票、序列投票、加权投票、概率加权和单分类器融合,其中乘法规则、均值、最大值3种集成方法还未曾应用于词义消歧。

Three exercisable algorithms,average value regulation,range transformation and the combination methods,are presented.

提出了3种实施性较强的算法:均值平移法、区间变换法和组合法。

The average value and covariance formulas of the stress intensity factor for a penny-shaped crack embedded in a fiber of the composite material are deduced.

基于级数展开技术导出随机边界元法，并将随空间坐标随机变化的材料或几何参数模型化为随机变量或随机场，从而导出纤维内含圆盘状裂纹应力强度因子的均值和协方差的公式，并用来求解承受均匀拉伸的复合材料纤维内含圆盘状裂纹的同轴双圆柱体的应力强度因子，分析了基体与纤维的弹性模量比对应力强度因子的影响，算例表明本文方法是可行和有效的。

weighted mean value

加权平均值，计数平均值

correct(ed) average value

准确平均值，精确平均值

ensemble average

集平均;统计平均值;系综平均值;总体均值

Returns the average of the values in a group. Null values are ignored.

返回一个组中值的平均值。忽略空值。

Mean-AVaR based portfolio balanced analysis;

基于均值-AVaR的投资组合均衡分析

sampling distribution of sample mean

样本平均值的抽样分布

mean daily maximum temperature

逐日最高温度平均值

standard error of sample mean

样本平均值的标准误

operating characteristics of test of mean

均值检验的运算特性

average value of a probability distribute

一种概率分布的均值

They struck an average.

他们已算出了平均值。

...remained at a mean of...

...保持在...平均值水平

tiny deviations from the average.

任何偏离平均值的变化。

compute the average of.

计算一些数的平均值。

age absolute relative error

平均相对误差绝对值

average absolute relative deviatio

平均相对离差绝对值

estimated average transmitting ability

平均遗传能力估计值

martindale limit

马丁代尔条干均匀度值