查询词典 vector function

Its primary coverage includes: Function and limit, derivative and differential, theorem of mean and derivative application, indefinite integral, definite integral and application, space analytic geometry and vector algebra, function of many variables differential method and application, multiple integral and curvilinear integral, infinite series, differential equation and so on.

其主要内容有：函数与极限，导数与微分，中值定理与导数应用，不定积分，定积分及其应用，空间解析几何与矢量代数，多元函数的微分法及其应用，重积分与曲线积分，无穷级数，微分方程等。

The impact of the mobilization under local war is surveyed through co-integration test, vector error correction model, impulse response function and variance decomposition based on vector autoregression.

外汇储备动员除了关乎局部战争胜负这一显而易见的军事功效外，其最为显著的影响就是对基础货币所带来的冲击。

To optimize the performance of the hybrid model,it applies k-means algorithm to perform vector clustering in the LSA vector space while the density function is used to initialize the centroid.

研究了潜在语义分析理论及其在连续语音识别中应用的相关技术，在此基础上利用WSJ0文本语料库上构建LSA模型，并将其与3-gram模型进行插值组合，构建了包含语义信息的统计语言模型；同时为了进一步优化混合模型的性能，提出了基于密度函数初始化质心的k-means聚类算法对LSA模型的向量空间进行聚类。

Targeting the biomass rice stalk,we use linestone as catalyst and cracking catalyse the tar which was pyrolysised from the target.We build the rice straw biomass gasification tar removal catalytic cracking process model by the least squares support vector machine model and optimize the model parameters through genetic algorithm.We also has gotten the best catalytic cracking temperature and gas residence time, making the highest rate of catalytic cracking tar.We made wood biomass as a target analysis so that we can thermally crack tar,and we can use genetic algorithms to optimize the model parameters that is based on the wood biomass gasification pyrolysis tar removal process model through the least-squares fitting method,then we got the best pyrolysis temperature and equivalence ratio,so that it is possible to make the tar content reach the minianum.Based on the least squares support vector machine model,we had established the model of the biomass sawdust Compression molding process and fit the Optimization Parameters objective function of the molding process .

以生物质稻秆为对象，采用石灰石作为催化剂对稻秆热解焦油进行催化裂解，由最小二乘支持向量机模型建立了生物质稻秆气化焦油催化裂解脱除过程的模型，并用遗传算法对模型参数进行了优化，得到了最佳的催化裂解温度和气相停留时间，使得焦油催化裂解率达到最高；以生物质木屑作为分析对象，对其进行热裂解脱焦，并依据最小二乘曲线拟合方法建立了生物质木屑气化焦油热裂解脱除过程的模型，用遗传算法对模型参数进行了优化，得到了最佳的热裂解温度和当量比，使得焦油含量达到最小。

On the detailed analysis of PMSM DTC principle, the function of zero voltage vector and the choice method of voltage vector in EV driving are proposed. Restricted condition about stator flux linkage under DTC is analyzed.

在详细分析DTC应用于PMSM的基本原理基础上，研究了零电压矢量在PMSM DTC中的作用并提出电动汽车用PMSM电压空间矢量的选择方法。

While in the transductive support vector machines all the test examples are treated equally, in the fuzzy transductive support vector machines, test examples are treated discriminatively according to their fuzzy labels. Thus, the adjustment of the decision hyperplane is refined, hence a more reliable decision function.

在直推支持向量机中，所有的测试样本被同等对待，而在模糊直推支持向量机中，根据其模糊类别标记的不同，测试样本得到区别对待，从而细化了分类决策面的调整过程，进而可以得到更为可靠的文本分类规则。

In this way a new research model:frequent structure vector model derived the expression of document structure vector and weight function and constructed the calculate formula to measure similarity of the two documents. In order to improve the efficiency of mining frequency subtrees in a forest reformed the algorithm TreeMiner from data structure and miner procedure to fit to minning structure in large documents.

该方法架构了一个新的检索模型—频繁结构向量模型，给出了文档的结构向量表示和权重函数，构造了XML文档结构相似度量计算公式；同时从数据结构和挖掘程序上对TreeMiner 算法进行了改进，使其更适合大文档数据集的结构挖掘。

The main works include: The topology structure and the switching function of the TSMC,the widely employed space vector modulation strategy without zero vector at rectifier stage and the transrectification of the TSMC were introduced.

论文的主要工作包括：介绍了TSMC的拓扑结构和开关传递函数、目前普遍采用的整流级无零矢量的空间矢量调制策略以及TSMC的换流。

This method is tectonic on foundation of nuclear function theory special and linear space, each issue of rank nucleus of progression of the Volterra that seek solution changeover uses output observation vector to be in to beg Xierbaite the some in the space child the umbriferous problem on the space, make originally complex, hard calculative is nonlinear in the approachs a problem to be built in place compose linear space of Volterra progression of the system solve ably with the means that accumulates inside vector, gave out specific algorithm.

该方法在核函数理论基础上构造非凡线性空间，将求解Volterra级数的各阶核的新问题转换为求用输出观测向量在希尔伯特空间中某一子空间上的投影新问题，使原本复杂、难以计算的非线性系统的Volterra级数的逼近新问题在所构建的线性空间中巧妙地以向量内积的方式解决，并给出了具体算法。

The method is realized via the following steps: first to apply Isomap or LLE to get the embeddings of the original data set in the low dimensional space; then to obtain support vectors, which are the most significant and intrinsic data for the final classification result, by using support vector machine on these low dimensional embedding data; subsequently to get support vectors in the original high dimensional space based on the corresponding labels of the obtained low dimensional support vectors; finally to apply support vector machine again on these high dimensional support vectors to gain the final classification discriminant function.

数据挖掘是数据库知识发现中最重要的步骤之一，其目标是从获取的数据中高效准确地挖掘出我们所需要的信息。在实际应用中，数据往往呈现海量、高维、非线性等特性，这些特性给数据挖掘带来了很多问题，例如海量特性导致的计算效率低下问题、高维特性带来的维数灾难问题和非线性特性引起的线性模型失效问题等。幸运的是，实际中高维数据的属性之间往往存在一定的规律性和相关性，即实际数据经常存在着外在与内在两个维数。

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。