母体变异数的估计 estimation of population variance 机率密度估计estimation of probability density 估计空间 estimation space ..
2
?概率密度估计
joint probability density : 联合概率密度 estimation of probability density : 概率密度估计 probability density function (p.d.f.) : 概率密度函数 .
双语例句
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The background samples are chosen by thresholding inter-frame differences, and the Gaussian kernel densityestimation is used to estimate the probabilitydensity function of background intensity.
通过相隔固定的帧差值阅值化得到背景样本值，并采用高斯核密度估计方法计算背景灰度的概率密度函数。
2
A discrete method for stochastic variable (features) space of class-conditional-probabilitydensity and estimation method for class-conditional -probability distribution is proposed.
本文提出了类条件概率密度随机变量（特征）空间离散化及类条件概率分布估计方法。
3
An introduction is Made of the method of using the weight ofprobabilitydensity function of error distribution law to conduct anti-error estimation.