查询词典 basis of vector space

Basis of a vector space n.

向量空间的基。。

The components and the abstract structure, including the basis and dimension, of the vector space are followed.

然后说明抽象的向量空间的基本架构，包括基底与维度等。

On the basis of constructing normalization vector space with single d irection, defined and induced six TOPSIS functions, proved that these six functi ons are valuation functions.

在构建单向规范化向量空间的基础上，定义并归纳了6种TOP SIS函数，证明了这6种函数都是价值函数。

A reduced order state observer is adopted to reconstruct the rotor flux component, and the poles of flux observer are assigned properly by pole assignment algorithm to satisfy the performance criteria of system and to get the purpose of observing flux.To start with the basis concept of space vector, the paper analyzes the relationship of stator phase voltages and voltage vectors in space.

磁通观测器采用降维观测器，仅对转子磁通分量进行重构，并通过极点配置算法，合理配置观测器的极点，使观测器满足系统的性能指标，达到磁通观测的目的。

Research emphasis is put on thefollowing aspects:First,study of multiwavelet basis(e.g.periodic vector,interpolation vector,multi-dimensional vector)suitable for different practical demands.Second,from perspective of operatorapproximation order,study of normal function approximation operator,contrast and comparison ofwavelet operator and multiwavelet operator and their respective applicable fields.And further,onbasis of the above,exploration of approaches of multiwavelet analysis application in function spacetheoretical research,and higher-lever,more convenient approaches for multi-function spaceapproximation theoretical research.Third,by fully employing unique features of multiwavelet,research action of multiwavelet analysis in the construction of L〓space non-conditionalbasis.Fourth,research such as transient signal analysis,image edge extraction,datacompression,fractal signal analysis.

其一，研究适宜于不同实际问题需要的向量小波基（如周期向量小波、插值向量小波、高维向量小波等）；其二，从算子逼近阶的角度研究一般函数逼近算子、小波算子和向量小波算子的异同点以及较优适用领域；在此基础上，探索将向量小波分析应用于函数空间理论研究的途径，寻找更高层次、更便捷地研究多元函数空间逼近理论的方法；其三，充分利用向量小波所独具的完美性质，探索在〓空间〓无条件基的构造中，向量小波分析的价值；其四，对向量小波适用的信号瞬态分析、图像边缘分析、数据压缩保真、分形信号分析等领域应给予特别的重视。

Firstly two theoretical basis of Direct Torque Control technique are researched----Field Acceleration Method and instantaneous space vector theory.

首先探讨了直接转矩控制技术的两大理论基础──磁场加速方法与瞬时空间矢量理论。

A vector signal space is defined by defining the two-dimensional (2D) orthonormal basis functions, and three critical measurements of performance, namely, probability of error, efficiency of spatial spectra and power efficiency are also defined as metrics for comparing candidate modulation schemes.

通过定义于二维空间的正交基函数建立了矢量信号空间，并定义了三个衡量空间信号设计方案性能的指标，即误符号率，频带利用效率和功率效率等。

Based on this result,the intrinsic reasons that singular value vector-based recognition methods have the low recognition accauracy are follows: singular value vectors of arbitrary two face images have not the equivalent basis space in general;there is no one-to-one correspondence between singular value vector and face image;singular value vectors are not separated.

进一步研究发现，导致基于奇异值向量人脸识别算法识别率低的根本原因是：不同人脸图像对应的奇异值向量所在的基空间不一致、奇异值向量与人脸图像之间并不存在一一对应关系、奇异值向量具有不可分割性。

This paper lays its emphasis on the latter by presenting a state optimal space vector control strategy on the basis of using a modified synchronous detection method to generate the reference current.

本文在采用改进的同步检测法产生指令电流的基础上，提出了一种基于状态优化的空间矢量控制方案，主要研究滤波器中变流器的控制策略问题。

This paper designs and develops information filtering system based on SVM. On the basis of information filtering model based on SVM, According to layered, modular method, this paper designs and develops information filtering system; The system uses three-layer filtering strategy, including packet intercepted model、SVM training model、filtering model、feedback learning model and so on; The system uses SPI technology to intercept packet, vector space module to express text, SVM method to learn training set to construct user profile and feedback incremental learning algorithm to optimize the user profile.

在研究基于SVM的网络信息过滤模型的基础上，按照分层、模块化设计的思路，设计并实现了基于SVM的网络信息过滤系统；该系统实现了三级过滤机制，主要包括数据包截获及协议分析、SVM训练、系统过滤、反馈学习等模块；该系统采用SPI技术实现数据包的截获及重组，采用向量空间模型进行文本表示，利用SVM方法对训练样本进行学习，生成用户模板，利用基于SVM的反馈增量学习算法来进一步调整优化用户模板。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。