查询词典 eigenvector

Scatter matrix ; principal component analysis ; eigenvector ; feature extraction

散布矩阵；主成分分析；本征向量；特征提取

SVD is the general method for linear decomposition of a matrix into independent principal components, and is a form of Eigenvalue-Eigenvector analysis or principal components decomposition and, in a more general sense, of multi-dimensional scaling.

SVD分解根据矩阵的运算计算出矩阵的奇异值，然后根据奇异值计算出矩阵的两个奇异矩阵，将矩阵分解为三个矩阵的乘积形式。

The original PageRank algorithm uses the Power Method to compute successive iterations that converge to the principal eigenvector of the Markov matrix representing the Web link graph.Authors use the sparse of the Google matrix P in the iterative matrix A =[ CP +（1- c ） E ]T,optimize the computation of each iteration and reduce storage space.

在PageRank算法中是使用乘幂法对网络链接图的Markov矩阵进行迭代计算，利用迭代矩阵 A =[ CP +（1- c ） E ]T中Google矩阵 P 的稀疏性，优化每次迭代的计算量并且减少空间存储量。

It shows that pair number of assignment eigenstructure"eigenvalue eigenvector" is less than or equal to rank of matrix E

研究表明：可配置特征结构的"特征值－特征向量"对数不超过阵

Through models analysis, the coefficients and the variances of residual errors were defined as eigenvector, templates of different flow regimes were built.

计算未知流型信号的特征向量模板特征向量的综合Mahalanobis距离，通过比较各判别距离的大小得到流型识别的结果。

Based on eigenvalues analysis of small signal stability analysis, mechanism of interconnected-lines' large power oscillations is studied by right eigenvector characteristic and generator power-angle characteristic.

从小干扰稳定性分析中的特征值分析方法出发，利用右特征向量的特征和发电机功角特性分析了局部振荡模式引起区间联络线上大功率振荡的机理。

The essential mathematical feature upon which this technique is based is that a square m*m matrix C of non-negative real numbers representing, for example, pairwise comparisons of the importance of element of the next higher tactics level has a characteristic equation which yields a dominant eigenvalue λ and a cprresponding right eigenvector x

基本数学特征后，该技术的基本思想是方形m*M矩阵三非负实号码代表，例如成对比较的重要组成部分，未来较高的战术水平有一个特性方程而产生主导特征和cprresponding权向量xwherec=与cij和cij=满足一致性条件

Using singular vector and eigenvector matrix as the features of flight maneuver not only has the results of dimension reduction and data denoising,but also unifies the flight maneuver data of different length to the same dimensionality.

将奇异值向量和特征矩阵作为飞行动作的特征，不仅具有数据降维和去噪的效果，并可将不同长度的飞行动作数据统一到同一个维度。

A novel signal processing technique using the Eigenvector algorithm for estimating sky wave delays in Loran-C receiver has been presented in this paper.

提出了一种基于特征向量算法来估计Loran-C接收机天波延迟的信号处理新技术，为设计具有自适应调节最佳采样点的Loran-C接收机打下良好的基础。

Based on mathematical analysis, elastic geostress field is a symmetric second-order tensor, which can be expressed as symmetric matrix and studied by its eigenvalue and eigenvector.

根据对二阶张量的数学分析，通过求取二阶张量的特征值与特征向量，导出了对称张量在空间几何学中对应的二次曲面。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。