特征向量

Result Among the 1st principal components, the positive weight value of chest diameter was greatest and it was the eigenvector with greatest influence on the 1st principal components. Among the 2nd principal components, the character loading value of leaf-lobed width and the positive weight values of angle between leafstalk and its branch and leaf-shape index were greater. Among the 3rd principal components, the positive weight values of leaf number, branch length, branch thickness and developed degree of crown size of 1 year old branches were greater.

结果］在第一主成分中，胸径的权重正值最大，是对第一主成分影响最大的特征向量；在第二主成分中，叶裂宽的特征负荷值较大、叶柄与着生枝夹角和计形指数的权重正值较大；在第三主成分中，一年生枝的叶数、枝长、枝粗和冠幅发达程度的权重正值较大。

The decomposition of the eigenspace of the defective matrix and the general form of Jordan chain ;2. The general form of the maximal Jordan chain s of the defective matrix is getten with the notation of depths of the generalized eigenvectors.

利用广义特征向量的深度，获得极大若当链的一般形式，并推导出在满足PJP-1=SJS-1的2个可逆矩阵P和S之间存在一个主对角线上具有上三角分块Toeplitz子阵的可逆矩阵H，使得S=PH，从而证明广义特征矩阵的唯一性。

This method effectively reduced the number of dimensions of the feature and the size of the feature database was decreased.

该方法大大降低了特征向量的维数，减小了特征数据库的规模。

It is well known that high order statistic can effectively restrain Gauss noise, which is very meaningful for the improvement of target recognition system in war field.

本文首先采用AR模型参数法进行特征提取，直接用AR模型的参数来构造特征向量。

Determinant Research Method is one of the effective methods for calculating the generalized eigenvalues and corresponding eigenvectors of a large sparse matrix. Its theoretical foundation is that for a symmetric matrix the leading principal minors of the eigenmatrix form a Sturm Sequence.

"行列式查找法"是计算大型稀疏矩阵广义特征值和特征向量的有效方法之一，其理论基础是对称矩阵的各阶顺序主子阵的特征行列式形成Sturm序列。

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

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。

As before, one first calculates the PCs, then studies the scree plot to determine the number

然后，考虑最小特征值对应的特征矩阵，丢掉那些在这个特征向量上有较大系数的feature。

Another is that retaining the refined Ritz vector in the new subspace,calledaugmented Krylov subspace.This way retains useful information and makes theresulting algorithm converge faster.

改进后的求解子空间为一增广Krylov子空间，该空间中包含更丰富的特征向量信息，因此用精化Arnoldi方法在该空间上求解矩阵特征问题时收敛速度更快。

In the feature space,the divergences on two classificational distributions are only dependent on the two characteristic vectors,i.e.,maximun and minimum in feature values,and their varying values depend upon the declinations of the aforementioned two ...

在特征空间上两类分布的分离度只依赖于特征值最大和最小的两个特征向量，且其大小依赖于上述两个特征值与某个定值的偏差。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷