查询词典 prime component

Principal component analysis ; feature extraction ; modular principal component analysis ; feature matrix ; face recognition

主成分分析；特征抽取；分块PCA ；特征矩阵；人脸识别

The multivariate analysis for structure simplification includes principal component analysis, principal component factor analysis and maximum likelihood factor analysis.

为简化形態性状多样性结构所进行之多变数统计分析包括主成分分析、主成分因子分析及最大可能率因子分析。

It is clear that the maximum principal component is mainly made up of the supply frequency component. The subspace II is spanned by the other eigenvectors related to the rest components.

子空间I由信号中的最大主分量和噪声所对应的特征向量张成，子空间II由其他分量的特征向量张成。

The principal component method and the minor component method are recommended to reduce the computation of MNE and MPE respectively. Whether rank reduction conducted or not, STAP is always performed in a particular space which may be spanned or expressed by different sets of basis.

我们在第5章讨论了DFP结构上两种特征子空间降维方法，即最小功率特征对消和最小范数特征对消，这两种方法将权矢量约束在噪声子空间内，从而能够对消与噪声子空间正交的杂波分量。

This paper proposes an efficient clustering algorithm for Multivariate Time Series—PCA-CLUSTER.The algorithm applies principal component analysis to reduce the dimension of MTS,and subsequently chooses the principal component series of MTS to cluster by a K-nearest neighbor algorithm.

提出一种高效的多变量时间序列聚类算法PCA-CLUSTER，首先利用主成分分析对MTS数据降维；选取MTS数据的主成分序列进行K近邻聚类分析。

On the basis of the Principal Component Analysis method this novel has analyses the parameter which influenced the weapon expenses ,got the principal component variable of the weapon expenses parameter model and preferably reflected the actual conditions of the weapon.

文中基于主成分分析方法，对影响武器费用的参数进行了分析，得到了武器费用参数模型的主成分变量，较好地反映了武器的实际情况，最后给出了模型的一个应用实例。

IPPCA is put forward in view of the feature original variables are projected into principal component space and tries to project inversely from principal component space to original variable space.

当某个或某些原始变量发生故障，经过主元分析将故障信息从原始变量空间投影到了主元空间。

From the maximum value of peak ground acceleration along all profiles, it's found that the radial component is about 2 times larger than the vertical component.

考虑到数值模拟中所采用的震源机制以及方位差异，剖面SC01同SC02、SC03之间在切向分量最大值的差异是可以理解的。

This paper is based on the algorithm of wave field reconstruction from the rate of the displacement spectrum of horizontal radial component of P wave to its vertical component.The observed data are selected from 4 teleseismic records of different depth at the Yichang Station with a good signal-noise ratio.

在远场正演计算的基础上，运用30°～90°的四个不同深源远震记录波形，通过试错法选取台站下方的结构，借助波场反向重建算法，反演确定宜昌台站下方的速度结构。

During the transition from tangential fretting to composite fretting, and to radial fretting, the decreasing of component of tangential fretting was accompanied with the increasing of component of radial fretting.

对复合微动的动力学特性、耗散能变化、损伤形貌、第三体行为、白层的形成和演变规律、裂纹的萌生与扩展，以及磨损与疲劳的竞争关系进行了细致研究。

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。