向量和

In Chapter 1, we introduce some theories and methods about the estimation of regression coefficient and do some preparations including some theories in the mean vector, the covariance matrix, the quadratic form of random vector, matrix derivative.

第1章概括介绍线性回归模型回归系数估计的一些理论和方法，并给出均值向量与协方差阵、随机向量的二次型、矩阵微商等预备知识。

Moreover, a method minimizing both model fitting capabilities and generalization as the objective function is offered to choose the proper parameters of support vector regression and facilitate the application.

给出了一种以最小化支持向量回归的拟合能力和泛化能力为目标函数来选择支持向量回归机参数的方法，以方便该方法的工程应用。

The problem of set partitions in combinatorial mathematics is conside-red, and the following three points are emphasized:(1) the non-recursivealgorithm for computing the number of partitions of an N-Set, P;(2)the algorithm for mapping the partition vector V to the partition sequencenumber D;(3) the algorithm for mapping the partition sequence number Dto the partition vector V.

本文对组合数学中的集合划分问题进行了一些探索，试图回答下面三个问题：①集合划分方法数P的非递归算法，②划分向量V映射到划分序号D的算法，③划分序号D映射到划分向量V的算法。本文以划分的构造树为基础，加以变换，得到数目树和分块树，由此求得P，以及K块划分方法数P_K。

It mainly finished the following several jobs. Pretreated the documents. Improved the Okapi term weighting formula. It also separated the term weighting and completed attributes reduction and rules extraction tasks. Firstly it reduced the feature vector dimensions by using discernible matrix. Then reduced it again by computing relative reductions.

主要完成了以下几个方面的任务：对文本进行了预处理；改进了Okapi权重计算公式，并对权值进行了离散化；实现了属性约简和规则抽取，首先利用区分矩阵对特征向量维数进行了初次压缩，然后通过相对约简计算再次压缩了特征向量维数，并生成了决策规则；采取了规则合成的策略，生成最终的决策规则；设计了一种文本与规则的匹配算法，使匹配过程尽可能简单有序。

This paper brings forward a new detection of steganography method based on genetic algorithms and one-class SVM.

针对二类支持向量机分类器在隐秘图像检测中训练步骤复杂与推广性弱的缺点，提出了一种新的基于遗传算法和一类支持向量机的隐秘图像检测方案。

One-class support vector machine and support vector data description are two main domain-based one-class classifiers.

单类支持向量机和支持向量数据描述是两种流行的基于支撑域的单分类器。

It is a feature that a sequence of orthogonal Ritz vectors is generated automatically based on the error minimization and employed to reduce the size of the system.

本文以典型的大跨圆拱屋盖为例，将里兹向量直接叠加法应用于屋盖系统特徵值问题计算和风致响应分析，其特点是在误差逼近的基础上自动生成一组正交的里兹向量幷用于缩减系统自由度数。

Based on analyzing regression analysis, neural network and the least square support vector machines that the three soft computing methods fitting for data fitting, in the paper try to use nonlinear regression analysis, the BP neural network based on Levenberg-Marquardt training algorithm, radial basis function neural network on orthogonal least square training algorithm and least square support vector machines for tracking the position of glass plate.

本文在分析适于数据拟合的回归分析、神经网络、最小二乘支持向量机这三种"软计算"方法的基础上，尝试将非线性回归分析方法，基于Levenberg-Marquardt算法的BP神经网络，基于正交最小二乘训练算法的径向基函数神经网络和最小二乘支持向量机应用于玻璃板位的跟踪中。

This feature leads to overlong and sparse bit vectors of BV algorithm, which requires a large amount of storage resources and too many read cycles in network processor.

在大型网络中大量的规则数量会导致位向量算法的位向量过长和稀疏，要在网络处理器中实现BV算法需要大量的存储资源，而且多次存储读取也降低了算法匹配效率。

During the middle to terminal propulsion phase, the optimized force vector is not tangential to the handrim and instead, it pass through the upper arm segment which is comparable to dynamic wheelchair propulsion.

在推动中期至末期，最佳轮椅推动向量并不是在接触点轮圈的切线方向，且此向量方向会通过上臂肢段；这些都是和动态轮椅推动的表现相同。

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。