vector space

Vector space model is based on text processing a variety of applications to the foundation and prerequisite for achieving.

向量空间模型，是基于文本处理的各种应用得以实现的基础和前提。

We first analysis the characteristic of HTML documents, then discuss the key technique of automatic text classification, including Vector Space Model, Chinese word segmentation, text feature selection, and implement a multinomial NaiVe Bayes classifier to classify Chinese Web page.

本文首先分析了Web页面的组织特点，对文本自动分类中使用到的向量空间模型、分词、特征选择等关键技术进行了深入的探讨，并实现了一个多项式朴素贝叶斯分类器对中文网页进行分类。

A Cross-lingual Text Filtering Module In Classifiable Sememes Vector Space

可分义原向量空间中的跨语种文本过滤模型

Finally the term-document space is constructed by vector space model with term frequency weight. Secondly, the latent semantic analysis is studied.

向量空间采用词频作为权值的向量空间模型构建。其次，研究了潜在语义分析模型。

Furthermore, we introduce the notion of theta decompositions to derive new theta function identities. We explain how to transform the set of the theta function solutions of a given contiguous relation into a finite dimensional vector space over the field K ( q).

进一步，为了推导新的恒等式，我们引入了theta分解的概念，说明了给定邻接关系的theta函数解空间可以转化为域K（q）上的有限维向量空间。

Based on vector space model a Bayes text classification method is proposed.

提出基于向量空间模型的贝叶斯文本分类方法.

Experiments show SSM has a better classification performance than vector space model in many circumstances.

实验表明,与向量空间模型相比,句子空间模型在许多情况下具有较好的分类性能.

A proof on the Pythagorean theorem in n-dimension vector space

n维空间中勾股定理的一个证明

The output voltage waveforms of matrix converter which is based on the space vector modulation are analysed under the unbalanced input voltage. A time variant modulation ratio method is proposed.

在非对称输入电压情况下，对基于双空间矢量调制的矩阵变换器的输出电压波形进行了分析，提出了利用时变调制比改善输出电压波形的方法。

The algorithm maps test vector space to the chaotic space and uses chaotic search to find out the suitable testing pairs.

该算法将测试向量空间映射到混沌空间并采用混沌搜索来寻找一对符合要求的测试向量对。

There are two methods for the disease phenotype similarity in this article. They are separately based on the vector space and based on the scene pattern. By the two methods we can obtain the similarity of disease phenotype in OMIM text.

分别利用基于向量空间的疾病表型相似度挖掘方法、基于情景模式的疾病表型相似度挖掘方法，通过这两种方法得到OMIM文本中疾病表型的相似度。

Genetic k Means Algorithm for Clustering of Large Scale Vector Space

大矢量空间聚类的遗传k-均值算法

The new theta function identities can be derived by considering the linear dependence relations among the elements of the vector space.

通过研究向量之间的线性相关性即可得到新的theta函数恒等式。

The paper studies character of transform in vector space with the aid of bilinear function.

本文借助双线性函数来研究向量空间的变换具有线性性.

Application of simplified space-vector modulation algorithm to three-phase voltage source PWM rectifier

空间矢量简化算法在三相PWM电压型整流器中的应用

In the course of the relativity judging between page content and topic, applying the term-based vector space model.

在页面与主题的相关性判定中，应用在自然语言处理中比较成熟的基于关键词的向量空间模型计算页面与主题的相似度。

Based on the conjugation theory of space surface, the vector relation of gear cutting is ensured.

基于空间曲面共轭原理, 确定齿轮切齿矢量关系,建立了螺旋锥齿轮的齿面矢量方程.

Text Presentation Module: it represents the text in vector space model. 5.

文本表示模块，采用向量空间模型对文本进行表示。

Then a block-signal formulation of Wiener filters and a vector space interpretation of Wienerfilters are considered.

然后阻拦信号熏肉香肠过滤器的公式化和熏肉香肠的传染媒介空间解释过滤器被考虑.

For graphics which are not complicated, vector graphics occupy less storage space than bitmap graphics.

如果图形内容并不复杂的话, 向量图形所占的储存空间比点阵图形少.

This paper introduces a text clustering method based on VSM ( vector space model ).

研究了一种基于 向量 空间模型的文档聚类方法.

This paper gives a formula of calculating the dimension of quotient space at first, based on the result, applies homomorphic theorem and isomorphic theorem I to vector space, and then gains a simple proof of dimensional formula and Sylvester theorem respectively.

本文建立了商向量空间的维数公式，在此基础上，应用同态基本定理和第一同构定理获得了对维数公式及Sylvester定理的简单、明了的证明。

Considering the characteristics of SLM microscopic images and color information of them, two wavelet transformation based methods in HSI color space and vector space for edge detection are proposed.

考虑SLM显微图像的特征和图像的彩色信息，在HSI彩色空间和向量空间的基础上，提出了两种基于小波变换的边缘检测算法。

Mathematics analysis in frequency domain for sample time staggered space vector modulation technique

错时采样空间矢量调制技术的频域数学分析

Multivalued Morphological Transformation Based on Complete Total Ordering of Vector Space

一种基于向量序结构关系的多值形态变换

KNN ( K nearest neighbors) is one of the best text categorization algorithms based on Vector Space Model.

K近邻算法是基于向量空间模型的最好的文本分类算法之一。

By introducing the Vector Space Model and an improved Best-First topic searching algorithm, the system has a high precision rate.

通过引入向量空间模型和改进的Best-First主题搜索算法，系统具备了较高的查准率。

The whole process of text representation were discussed& word segmentation, building stop words list, feature selection, weight computation and generating vector space.

讨论了文本表示的整个过程&分词，建立停用词表，特征选择，权重计算，生成向量空间。

Space time channel can be described by vector channel impulse response ( VCIR). Estimation of the VCIR is very important for Smart Antenna Systems.

时空信道可以用矢量信道冲激响应（VCIR）来描述，正确估计VCIR是智能天线系统实现的关键技术。

A simplified algorithm three-phase voltage source PWM rectifier for space vector modulation was presented.

提出了应用于三相电压型脉宽调制整流器的空间矢量简化算法。