error of variance的意思|示意

In comparison with BP method and RBF method, the SVM method is proved to be the best in terms of absolute error, relative error, correlation coefficient and variance.

模拟结果与BP网络方法、R BF网络方法相比，在绝对误差、相对误差、相关系数以及数据方差方面都是较优的。

After the tuning of background error variance and de-correlation length, results from the NMC-method are closer to those of the innovation vector method, and the analysis results are improved.

通过对背景误差方差、特征长度的调整，显著改善了背景误差功率谱的分布特点，使得NMC方法结果与更新矢量方法结果更为吻合。

According to variance changing laws of a precise rotor radial rotating error motion, it can be proved that the rotor's motion track is characterized by fractional Brownian motion.

通过分析某精密转轴轴心径向回转误差运动轨迹的方差变化规律，证明该轴的回转运动具备了分数布朗运动的基本特征。

We study the admissibility of the quadratic estimate for error variance in two classes of growth curve model.

在二次损失函数下，研究了增长曲线模型误差方差的非齐次二次型估计的可容许性问题。

This paper gives a necessary condition for the admissibility of a nonnegative, quadratic estimator for error variance in linear model with respect to restricted ellipsoidal parameter space.

本文给出了线性模型中椭球约束下，误差方差非负二次估计可容许的一个必要条件。

At first, we analyze sample index funds' historical risk levels as well as their risk structure by means of decomposition of tracking error variance.

首先，对样本指数基金的跟踪误差方差进行分解，分析其历史风险水平；然后，引入压力测试，预测样本指数基金未来的风险水平。