特征向量

Compared with the Ritz vector method,the scheme still keeps the feature of using sidgle vector for inverse iteration.

一般的Ri权向址法和助n二哪法都是从一个初始向量开始迭代，用带，卜交化的反迭代脚戈一组Ritz挂向叭和相应r内只对角矩阵，仅用一次R叮leigh一Ri垅分析法，求得若千最低阶特征解。

By projecting 3D models into 1D smooth principal curves, equally segmentation and sampling along the length of curve are implemented to extract shape feature vectors, then one can retrieve 3D model according to the matching result of shape feature vectors of 1D manifold.

本文将三维网格模型，投影为三维的光顺主曲线；通过对主曲线沿弧长方向的均匀分割采样，提取主曲线的空间位置和姿态等形状特征；最后通过形状描述向量的比较实现了对应的三维模型检索。

In order to implement the fault diagnosis of Chongqing light-rail's screws,a new method of screw fault diagnosis based on Support Vector Data Description is proposed,which can found one-class classifier with normal screw samples only and doesn't need feature extracting.The method solves the difficult problem of lacking fault screw samples.

为了实现对重庆市轻轨轨道梁锚固螺杆的故障检测，提出了一种基于支持向量数据描述的锚固螺杆故障诊断方法，该方法只需要正常螺杆样本，且不需要对原始数据进行特征提取，就可以建立单值分类器，解决了缺少故障螺杆样本的难题。

Gabor filter could better extract the local features of images because of its selectivity on scale and orientation, and it is robust to variances of lighting, pose and expression. The common vector is a linear subspace classification method, which can obtain good classification results by extracting the common property of each class training samples.

Gabor滤波器因其良好的方向与尺度选择性，能很好地提取图像局部特征，对光照、姿态、表情变化有一定的健壮性；共同向量方法是一种线性子空间分类方法，利用提取的同类样本的共同属性对测试样本进行分类，在训练样本较少的情况下能够取得较好的分类效果。

This method made the number of dimensions of the feature was effectively reduced and calculation decreased.

在特征提取的基础上，用支持向量机对图像进行分类与检索，分别给出相应算法。

Results The EEG characteristics energy displayed by the model between epilepsy patients and healthy people could be divided obviously. As a new machine learning methods, SVM had a strong ability to generalize. EEG signals based on the algorithm of the classification would become diagnosis of epilepsy patients misprision of a new viable avenue.

结果：癫痫患者和健康人的16导脑电信号在能量特征上表现出较高的模式可分性，支持向量机作为一种新的机器学习方法，具有较强的泛化能力，基于该算法的EEG信号的分类方法会成为诊断隐匿癫痫患者的一种新的可行途径。

In this paper, by using some characteristic quantities such as value function, trust region radius, etc. in trust region method, we present a global error bound for the distance between a feasible solution and the optimal solution under the condition that the gradient vector of the objective function is strongly monotone.

本文利用信赖域方法中的几个特征量（由预测下降量给出的价值函数与信赖域半径等），在目标函数的梯度向量是强单调的条件下，为约束最优化问题的可行解与最优解之间的距离提供了一个全局误差界。

In order to simplify the subsequent analysis,the obtained independent components can be divided into two parts containing dominant part and excluded part according to the concept of vector norm,and two types of statistics,I2 and SPE that reflect the system's variety and error,are respectively calculated whose confidence bounds need to be identified.

独立分量分析在过程监控、故障检测方面的应用则刚刚起步，通常是把分离得到的独立分量直接作为某种特征的反映[4]，或者对混合系数进行多次计算、对比，直接作为检测故障的指标，然后结合支持向量机方法诊断故障[5]。

The algorithm takes into account the relationship between noise and underlying geometric information,such as normal and curvature.

为了更好地去除噪声，并保持模型的突出特征，提出了一种鲁棒的点模型多边滤波器降噪算法，该算法充分考虑了模型表面的法向量、曲率等内蕴几何量和噪声之间的关系。

Estimation of the normal and curvature on meshes with good precision and rapidness is the foundation of many applications, such as characteristic detecting, partitioning, simplification, smoothing, distortion, reconstruction on mesh.

精确、快速地计算网格曲面的法向量和曲率等微分量是众多离散曲面应用的重要基础，对网格曲面的特征提取、网格分割、网格简化、网格光顺、网格变形、网格重建等处理过程均有重要的作用。

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