查询词典 feature vector

First of all, a vector parallel of linear feature is obtained by calculating the corresponding vertex of parallel for every vertex based on angle bisector and then a greedy search strategy is adopted to find the optimal labeling position.

该方法求取平行线精度高，算法强壮性好，能满足线状要素注记的需要。

A method of frontal face detection based-on feature extract using Gabor filter features and support vector machines is proposed in this paper.

本文提出了一种基于Gabor滤波特征和支持向量机的正面人脸检测方法。

NMF can find basis vector through observation data,and discover image feature,obtaining the fusion image.

介绍了非负矩阵分解的基本思想，讨论了非负矩阵分解用于图像融合的可能性，并实现了基于非负矩阵分解的遥感SAR图像与SPOT图像的融合，NMF能通过观测图像数据找到图像的基矩阵，发现图像的特征，从而最终获得融合图像。

The dissertation studied the methods of data, pre-process and presented the algorithm of 3D mesh segmentation: Using curvature, vector and the prerequisite feature lines to detect the segment edges, then a region growing method is applied based on those edges is applied to segment the triangle meshes.

本文针对含有扫描数据含有大量噪点这种普遍的现象设计了特征线的优化和修复算法，对于初步提取得到的特征线，通过剪枝、边溃缩，边拆分和边交换等手段，大大减少了结果中的碎片数据，并使获得的曲线更加光顺，达到工业应用的效果。

Eight dimensional feature vectors(3-dimensional coordinate,3-dimensional normal vector and2-dimensional curvature)are taken as input for this fuzzy SOFM to realize segmentation in reverse engineering.

1引言逆向工程中的区域分割是将点云数据按照指定分割准则犤1犦分成若干个子集。

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。

Generally ,in the traditional text classification system , there is a assuming that the relation between words in article is linear independence and inter-relationship between feature dimensions in the vector space model is orthogonal, however ,in face there are various relationships in the text context , such as synonymy , similarity , conjunction etc.

在传统的文本分类系统。

Direct difference is sensitive to noisy data, so a threshold limitation is given, which can not only filter the result from noisy data but also pick edge points up according men's desire. On the other hand, artificial intelligence is used for segmentation in reverse engineering. Because the essence of segmentation is clustering similar characteristics and self-organizing feature mapping is one function of neural network, SOFM network is used for segmentation in the thesis, coordinates and normal of data points is took as the characteristics vector.

第二种方法，基于双向角度微分的边点提取法，针对三维正交模型采用基于截面线的方式组织数据，此方法比基于曲率半径方法更简洁，不用进行曲面拟合，大大提高了计算速度；计算过程中由数据点的直接差分逼近微分，但直接差分对数据误差敏感，为此，本文提出了阈值过滤的方法，一方面过滤了数据误差在计算结果中引起的噪音，另一方面可以按照设计意图控制边点的提取；来决定是否提取光滑交接的边点。

Based on the intrinsic nullspace property of the SVM proven by the authors, which shows that the normal vector of the SVM decision plane is of the nullspace property in terms of the support vectors-based within-class scatter matrix, a support vectors-based method is presented to construct the Kernelized Decision Boundary Feature Matrix by using the SVM normal vectors.

进一步结合均值向量的差向量构建扩展决策边界特征矩阵。最后以支持向量为训练集合，结合零空间方法来计算投影空间，该投影空间被用来从原始图像中提取判别特征。

Applling the key techniques of text topics classification to text sentiment classification In this paper, using three kinds feature selection methods (information gain, mutual information and chi-square statistic), and two kinds probability computer, and support vector machine to construct the classifier, text sentiment classification are studied.

本文采用了信息增益、互信息和x~2统计三种特征选择方法以及布尔和频率两种概率估算方法，对文本情感倾向分类进行了实验研究，选择支持向量机技术构造分类器。

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。