特征向量

In selecting vectors, the algorithm also uses the class label of training set and the judgment information of class mean vector.

在特征向量的选择中，本算法还用到了训练集的类别标签和类别平均向量的判别信息。

In this new algorithm, 2-D X-ray images are collected for Ca, Si, Al, Fe, S, K, Mg, and grey-level value of the same point in these images are normalized and arranged as a vector in a particular order. In this paper, the vector is named as character vector, for it can be used to characterize each point in cement pastes 2-D image.

新算法采集水泥截面上Ca、Si、Al、Fe、S、K、Mg的二维X-射线图像，将这些图像同一点处的灰度值正规化并按一定的顺序排列后写成向量的形式，称为该点的特征向量。

The P-V indicating diagram of compressor is a truthful record of working condition in the cylinder. According to the technique, the pressure signals collected from cylinder are normalized and treated as characteristic vector. And the vectors are inputted into a multi-class classifier composed of many support vector machines to identify fault modes.

压缩机P-V指示图是压缩机气缸部分工作状况的真实记录，该技术将采集的气缸压力信号经归一化处理后作为特征向量，输入到由多个支持向量机构造的多值分类器中进行故障模式分类。

The main topics are: determinants, matrices, rank of a matrix, vector spaces, linear equations, eigenvalues and eigenvectors, quadratics.

本课程的基本内容有行列式、矩阵、向量空间、线性方程组、矩阵的特征值与特征向量、二次型。

The characteristic vector of the real symmetric matrix should be found out, which is orthogonalized and normalized to a standard orthogonal base and is used as row vector to construct the transformation matrix P, so the P~(-1)AP can be made into diagonal matrix.

实对称矩阵A经相似变换P-1AP可化为对角矩阵，在x =Py 下，不一定能化A的二次型为标准型；应寻求对称矩阵A的特征向量，将其正交化并单位化作为标准正交基，作为列向量构造变换矩阵P，可使P-1AP=Λ为对角阵，在x =Py 下，要将二次型化为标准型，且二次项系数即为对角阵Λ主对角线上元素。

This method use the silhouette of object in image as feature, after approaching with polylateral, a serious control point can be got, the feature vector of object's contour can be got by calculating the parameter of AR model, which use the sequence of angles got from control points.

该方法以目标二维方面图轮廓为特征，经多边形逼近获得边界控制点，计算出边界控制点对应角序列的AR系数作为相应方面图的特征向量，建立三维目标的在各种姿态下的姿态特征库。

Two kinds of machine learning algorithms, Winnow and Support Vector Machine, were used to extract entity relation from the training data of ACE Evaluation 2004 automatically.

本文使用两种基于特征向量的机器学习算法，Winnow和支持向量机，在 2 0 0 4年ACE评测的训练数据上进行实体关系抽取实验。

The characteristic features of nitrogen and kalium deficiencies for tomatoes, which is hardly to be recognized in the initial period of growing, mainly represents on the color and texture of tomato leaves.

以肉眼不易识别的番茄缺氮和缺钾初期为研究对象，对体现在叶片颜色和纹理上的缺素症状进行了特征提取，利用遗传算法对提取的众多缺素特征进行优化组合，选择出用于模式识别分类器设计的特征向量。

First the power spectrum of fault signals were decomposed by wavelet analysis, which predigests choosing method of fault eigenvectors, and then the LSSVM was adopted to diagnose faults.

首先对故障信号功率谱进行小波分解，简化了故障特征向量的提取，然后采用最小二乘支持向量机进行故障诊断。

According to amino acid compositions and pseudo amino acid composition, the membrane protein types were predicted by using supervised locally linear embedding algorithm.

将氨基酸的组成含量以及它们之间的相关系数作为膜蛋白序列的特征向量，采用有监督的局部线性映射的方法对该向量进行降维，并使用最简单的欧氏距离分类器来预侧膜蛋白类型。

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