特征向量

And the codebook of vector quantization can also be regard as the characteristic distilling for the image.

而矢量量化压缩的过程，实际上又可以把最终得到的码书看成是提取一幅图像的特征向量组的过程。

Methods Firstly, 2-D matrix X with each ECG-cycle as a column vector was constructed. Secondly, the principal components of X based on Karhunen-Loeve Transform were gotten to reconstruct X from the first eigenvector of XXT.

首先以逐拍心电波形为列矢量构造二维矩阵X，再通过KL变换得到X的主分量，然后由X的最大特征向量重构X。

For example, 13 means concatenation of first-order gradient and norm luminance as feature vector.

比如：13意味着第一顺序梯度和常规亮度在特征向量上的组合。

Markov model using the estimated conditional probability space as a feature vector for image retrieval.

详细说明：利用马尔可夫模型估计的条件概率做为空间特征向量，用于图像检索。

Principal curvatures and principal directions are obtained by computing in closed form the eigenvalues and eigenvectors of certain 3×3 symmetric matrices defined by integral formulas, and closely related to the matrix representation of the tensor of curvature.

通过计算3×3对称矩阵的特征值和特征向量可以得出主曲率和主方向，而该对称矩阵是由积分公式定义并且与曲率张量的矩阵表达密切相关。

Owing to its cyclic symmetry the complex constraint method for the eigenproblems of cyclic symmetric structure is applied to calculating the eigenpairs of the helical gear structure.

根据齿轮结构的循环对称性，以仅含有一个完整轮齿的扇形子结构作为齿轮有限元计算模型，用计算循环对称结构特征值问题的复约束方法，通过求解一个扇形子结构的特征值问题得到整个齿轮结构的特征值和特征向量。

Compared with traditional methods, the method in this thesis does not need to find all the eigenvalues and eigenvectors of a system, and to do diagonalization.

与常规方法相比，本文的方法不需要求系统全部特征值和特征向量，也不需要对角化。

An eigen matrix diagonalization method for solving this category of special mechanical quantities is derived.

在力学中，类似这些力学量的求解可归结为矩阵特征值或特征向量的求解。

The paper has discussed such problims as the properties of sub-eigenvalue and sub-eigenvector of real-anti-sub-symmetric matrix,and its diagonalization.

讨论了实反次对称矩阵的次特征值与次特征向量的性质及实反次对称矩阵的对角化问题。

We then diagonalize the matrix C and obtain the eigenvalue spectrum and eigenvectors. The large eigenvalues which go beyond the upper bound of the random matrix, i.e., the Wishart matrix, reflect the local correlations between stocks. The largest eigenvalue corresponds to the market mode, and next large eigenvalues represent the interactions between stocks in a same sector.

进一步，通过对角化，我们得到矩阵C的特征值谱和特征向量，超过随机的Wishart矩阵特征值谱上边界的特征值反映了股票间的局域关联，其中最大的特征值对应于市场模式，其余的次大特征值代表了同一板块内股票间的相互作用。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。