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In general, this paper includes several parts, shown as the following: The first part summarizes the background and outline of stock index future and introduce briefly its local status and CSI 300 stock index future contract. The second part has a retrospect of the main academic papers of both local or overseas, and also a discussion of relevant hedge strategies and models, to lay a solid theoretical foundation for the empirical analysis and test for the operation process of hedge in latter parts. The third part outlines the principle, key factors and real operation process of hedge. Moreover, it makes a empirical analysis on popular hedge models with HK Hang Seng index. In the end, it test the hedge effect of trading on IF0706, CSI 300 stock index future contract, with CCB select-growth securities fund as present underlying. The fourth and also the last part, explores how to define hedge ratio in china mainland market. It includes the stability test ofβfor local securities portfolio, adjustment of historicalβand best data length for estimation of historicalβ, etc. Also, the thesis makes some beneficial experiments on the definition of best data length for estimation of historicalβ, survey of fashion forβand variation for industryβs. Fortunately, it's got some meaningful results.

按照以上研究思路，本论文论述由以下几个部分构成：第一部分，简要概述股指期货产生的背景和基本情况，对国内股指期货进程和沪深300股指期货合约进行简单介绍；第二部分，回顾海内外股指期货避险研究的主要文献，讨论相关避险策略及避险模型，为后面套期保值策略如何有效运用的实证分析和检验提供理论基础和依据；第三部分，对套期保值的原理、关键因素及实际流程进行概述，并采用香港恒生指数对常用的几种避险模型进行实证分析，最后一揽子以建信优选成长股票型基金为现货标的，实际检验以沪深300股指期货模拟交易IF0706产品进行对冲时的套期保值效果；第四部分，探讨国内确定避险比率的过程，包括国内股票组合β值的稳定性检验、历史β值的修正及估计历史β值的最佳数据长度等，通过数据分析，本文在寻找估计β值的最佳数据长度和考察风格、行业β值的差异上做了较为有益的尝试，并得到了有助于现实操作的结果。

As informatively discussed by Kyoko Tokuno, several recurrent themes in these texts help define the genre as a whole.

由于Kyoko Tokuno的详尽教诲，几个文中重复出现的主题为我们将因果关系具体定义。

The data in LLE are optimized using the small world algorithm, and the shortest path and the local neighbor set clustering coefficients are used as the local parameters. As a result, the problem of the embedding distortion using only local linear patch of the manifold to define neighborhood in Euclidean space is effectively solved. Three groups of standard data sets are selected to test and to compare the efficiency and robustness of SLLE and LLE.

将复杂网络算法引入到流形学习中，利用小世界算法对LLE算法进行数据优化，并以最短路径和局部集群系数作为局部优化参数，解决了数据点不规则时以欧氏空间作为邻域判别标准在构建局部超平面造成嵌入结果扭曲的难题。

This mangling is done without regard of the syntactic position of the identifier, so it can be used to define class-private instance and class variables, methods, as well as globals, and even to store instance variables private to this class on instances of other classes.

这种混淆不关心标识符的语法位置，所以可用来定义私有类实例和类变量、方法，以及全局变量，甚至于将其它类的实例保存为私有变量。

We define a Melchite then as any Christian of these lands in communion with Rome, Constantinople, and the great Church of the Empire before the Photian schism, or as a Christian of the Byzantine Rite in communion with Rome since.

我们定义一个melchite那麼任何基督教的这些土地，在与罗马的共融，君士坦丁堡，伟大的教堂帝国之前photian裂，或作为一个基督教的拜占庭礼仪，在与罗马的共融至今。

The NBER does not define a recession as two consecutive quarters of decline in real gross domestic product, as is the rule of thumb in many countries.

将衰退界定于连续两个季度的实际国内生产总值下降，这在许多国家是共识。

A fine-grained genetic algorithm based algorithm which is for the parameters optimization problem of agent model is proposed. The fine-grained genetic algorithm is used to solve the parameters optimization problem of agent model. As to the parameters optimization problem of the agents colony model, the first step is to define the concept of "the parameters mode of the combat agents colony" to describe the parameters of the combat agent colony model. Then the genetic algorithm is used to solve the optimization problem with the parameters mode of the combat agent colony model as the genetic individual. Besides the algorithm, the algorithm dispatch tactic is also considered. And the two level sequence dispatch tactic and the two level nesting dispatch tactic are put forward for those complex parameters optimization problem. At last, the model parameters optimization under antagonism codition is studied. The means to solve this problem is to translate it into a kind of antagonism problem, then use the competitive co-evolutionary genetic algorithms to solve it.

其中：提出了一种基于细粒度模型的作战智能体模型参数优化求解算法，用细粒度模型遗传算法求解作战智能体模型参数优化问题；提出了"作战智能体群体参数模式"的概念，对作战智能体群体模型参数进行形式化描述，再以作战智能体群体参数模式为遗传个体，应用遗传算法求解作战智能体群体模型参数的优化问题；研究了上述优化问题求解算法的调度策略，提出了分层模型参数优化算法的双层顺序调度策略和双层嵌套调度策略，解决复杂的模型参数优化问题；将对抗条件下作战模型参数的优化问题转化为一种对抗性问题，应用竞争性共同进化遗传算法，进行求解。

Ordinarily, we define the arithmetic and relational operators as nonmember functions, as we do here with our Sales_item addition operator

一般而言，将算术和关系操作符定义为非成员函数，像下面给出的 Sales_item 加法操作符一样

Ultimately, Labour's mistake may have been not so much invoking ethics (something British statesmen such as Lord Palmerston often did during the country's imperial prime in the 19th century) as failing to define them.

最终，工党在援引道德（在19世纪帝国的全盛时期，像Palmerston爵士那样的英国政治家就经常干这种事情。）时犯的错误可能还没有达到令人难以接受的地步——至少他们还知道"道德"是什么意思。

This thesis is divided into four parts: First , introduction, this part introducesmeaning of the selected title , purpose emphatically and studies the current situation athome;The not totally understanding of second , Wiki, this part puts history aboutWiki, relevant idea and technology in order emphatically, define the resemblancebetween Wiki and some other kinds of Internet technology is and different;Third, theWiki one has already used and faced querying , explain the application of Wiki andobstruction met in the course of domestic development emphatically in this part;Fourth, think to the pluralism of domestic Wiki development , this part is used againstconcepts , such as copyright , fictitious community , network morals , spreading tocheck on people ,etc. and theory, proceeding from plural visual angle, thedevelopment taking one as domestic Wiki puts forward the view through a peep-hole.

本论文分为四部分：一、绪论，此部分着重介绍选题意义、目的与国内研究现状；二、Wiki的不完全解读，此部分着重理清有关Wiki的历史，相关理念及技术，明确Wiki与其他几种互联网技术的相似与不同；三、Wiki的已有应用与面临质疑，此部分着重阐述Wiki的应用领域及在国内发展过程中遇到的阻力；四、对国内Wiki发展的多元思考，此部分借用反版权、虚拟社区、网络道德、传播把关人等概念与理论，从多元视角出发，以期为国内Wiki的发展提出一孔之见。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。