查询词典 optimal strategy

And Switzer, L.H.,"Time-Varying Distributions and the Optimal Hedge Ratios for Stock Index Futures", Applied Financial Economics, 1995, Vol.5,No.

陈政德，许溪南，「利用国外台股指数期货避险最适避险比率之探讨」，复华季刊，1998，第59期，第59-87页。

Finally, based on the studies above, the characteristics of pantograph/catenary are analyzed and the active pantograph is modeled. By using the linear quadratic optimal control law, the design objective is to minimize the performance index, which is a function of the state variables representing the pantographs dynamic characteristic and the active control force. The control system is designed considering the complete state feedback.

最后，在此基础上，分析了受电弓／接触网系统的工作特点，建立了受电弓主动控制系统的数学模型，利用线性二次型最优控制策略，以给定性能指标为最小值为设计目标，性能指标为表征受电弓动力学特性的状态变量和主动控制力的函数，考虑了完全状态反馈的情况，进行了控制系统的设计。

Objective To study the optimal BMI cut-off points for overweight and obesity of Shanghai children and its corresponding percentiles.

目的 探讨上海市男女童体质指数超重及肥胖最佳界值点及相应百分位。

The results showed that, with increase of polymerization number , the activities of lipase in SEPESes/isooctane reversed micelles reached the maximum and then decreased. The lipase activity at optimal n (=2. 0) was 2. 2-fold of that in AOT/isooctane system.

结果表明，脂酶在SEPES／异辛烷反胶团中的活性随氧乙烯聚合数增大先增后降，在n=2.0左右达到最大，为AOT／异辛烷反胶团中的2.2倍。

Furthermore, the optimal indirect tax under imperfect competition generally leads to potential Pareto improvement to the society.

并且，最优的流转税一般可实现社会福利的潜在帕累托改进，即税收的超额负担为负。

In the light of the drawbacks of the conventional porkchop plots method that needs a lot of computation time with low computation efficiency, a search approach for optimal launch window for exploring small celestial body was proposed based on the genetic algorithm.

针对传统porkchop图方法计算量大、计算效率低的问题，提出了一种基于遗传算法的小天体探测发射机会搜索方法。

An automatic algorithm was used in the analysis to identify clusters of groupings of patients. We used the classical unsupervised clustering method called the Iterative Self-organizing analysis technique of DATA analysis originally introduced by Ball and Hall.25 The technique allows the splitting and merging of clusters while trying to find the "best" configuration. It therefore, requires very little a priori knowledge about the data and predefining the possible number of clusters or groups is not required. The range of possible minimum and maximum number of clusters within which the algorithm can search for an optimal configuration was determined by a procedure called the chainmap which reorders the multidimensional data in the form of a 2D distance map.26 A patient vector is randomly selected and its nearest neighbor is identified as that with the shortest distance between the 2 patients' vectors.

使用自动算法来分析鉴别患者组的聚类，我们使用经典的最初由Ball和Hall提出的的非监控聚类方法，该技术允许在寻找&最佳&形态使对聚类进行拆分和组合，他不需要对数据专门的知识和对聚类或群的可能数量进行预设，在聚类可能的最大和最小范围内，算法可以通过一个叫Chainmap的程序寻找最理想的形态，该程序记录了来自2D距离图的多维数据。

A three-point estimate method to solve the probabilistically optimal power flow for electricity market with uncertain factors was proposed in this paper.

针对电力市场运营中存在的不确定因素，该文提出一种基于三点估计的概率最优潮流算法。

In this thesis, using three partly entangled pairs as the quantum channel, we present a scheme for probabilistically teleporting an unknown three-particle entangled state by means of the optimal discrimination between two nonorthogonal quantum states.

在本论文中，使用三个非最大的纯纠缠对作为量子通道，通过对两个非正交量子态的最佳识别，我们提出了一个概率量子隐形传送三粒子纠缠态的理论方案。

A data object placement algorithm based on dynamic interval mapping is proposed, which supports weighted allocation of storage nodes and variable levels of object replication and is probabilistically optimal in both distributing data evenly and minimizing data movement.

提出的基于动态区间映射的数据对象布局算法，支持权重分布和副本，在均衡数据分布和最少迁移数据方面都具有统计意义上的最优性，有效解决了动态存储系统的数据均衡分布与可伸缩性问题。

Salt is good, but if the salt becomes flat and tasteless, with what do you season it?

14：33 盐本是好的，盐若失了味，可用什么叫它再咸呢？

He reiterated that the PLA is an army of the people under the leadership of the Communist Party of China.

他重申，人民解放军是在中国共产党领导下的人民军队。