引入均方差的概念，建立了抽运光功率分布均匀性判定方法。
A method to estimate the distribution of pump power is bring up.
在计算最近邻时，引入了兴趣方差的概念，提高了计算最近邻的准确度。
Moreover, the concept of interest variance is adopted to improve the veracity of searching nearest neighbors.
另一个基本的概念是协方差。
本文给出了模糊随机变量的方差这一概念，并讨论了它的一些性质及计算方法。
This paper gives a new concept of variance of fuzzy random variables and discusses it's property and calculation.
为求出随机特征对的方差，借助于模态截断概念推出诸特征值与特征向量对随机变量的偏导数。
Partial derivatives of eigenvalues and eigen vectors with respect to random variables for structures are deduced by means of the concept of mode truncation.
最后，通过采用因子分析、方差分析、多元回归分析等统计方法对所提出的概念模型和研究假设进行了验证和分析。
Finally, by using factor analysis, variance analysis and multiple regression analysis, this paper verifies the above conceptual model and research hypothesis.
为此提出围岩物性参数空间等效方差增大函数这一概念，用来反映岩体结构对衬砌综合作用的随机变异性。
In order to describe the random variability of comprehensive actions of rock mass on lining, an equivalent deviation increasing function is put forward.
我们提出了闭合误差的概念，作为仪器测量精度的判据，测量仪器的瞬时均方差，以表征测量的重复性和可靠性。
We suggest "error of closure" asa criterion of measuring accuracy and use transient root-mean-square error to ex-press repeatability and reliability of measurement of the instrument.
鉴于相关等价权的构造非常困难，提出了等价方差-协方差概念。
Since many difficulties exist in the design of equivalent weight with correlated observations, the concept of equivalent variance-covariance is presented.
提出了能量衰减函数的概念，并由实际能量衰减函数与估算能量衰减函数之间的方差最小来确定非线性阻尼系数。
The concept of roll energy decay function is put forward, and the nonlinear damping coefficients are solved based on the minor error between actual energy function and evaluated energy function.
马克维茨将回归概念形式化并且协方差的普通股让他可以在市场中量化“多元化”的概念。
Markowitz formalized a notion of mean return and covariance's for common stocks which allowed him to quantify the concept of "diversification" in a market.
运用均值、方差概念来定义的滑动模可达性，更能反映系统的随机特征。
Using mean, variance conceptions in the definition of the sliding mode reachability can better reflect the stochastic characteristics of the systems.
细说是非标志的概念、平均数及其方差。
Explain the conception of the mark of yes or no and average number and its involution difference.
细说是非标志的概念、平均数及其方差。
Explain the conception of the mark of yes or no and average number and its involution difference.
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