最优策略

On the basis of analyzing limitation of using penalty function method dealing with constraints , an amending method based on the knowlege regulating strategy is suggested to amende the mapping relationship of infeasible constraints in decoding , thus making the regulated individuals map into the space to obtain the most promising optimal solution .

在分析惩罚函数法对约束处理效率较低的情况下，提出了一种基于知识调整策略的修正法，对解码中不满足约束的映射关系进行修正，使调整后个体映射到最有希望获得最优解的空间中。

During vertical migration , the copepod is assumed to instantaneously check the variations of the environmental parameters and can thereby make the optimal behavioral strategy to maximize the value of venturous revenue , i .

在垂直迁移的过程中，我们假设桡足类个体能够即时识别环境参数的变化从而采取最优的行为策略以获取风险收益的最大值，即以尽可能小的死亡代价获取尽可能多的食物。

Finally,the optimal worst case investment strategy was provided with the value function of the differential game.

最后，基于微分对策的值函数，给出了最差情况下最优的投资策略。

At the same time, the optimal hedge ratio is derived and analysised theorictically. This leads to the disadvantage of existing model blindly pursuing risk-minimizing and ignoring the hedger's expected return being settled, and provides a futures hedging strategy for hedger.

并从理论上推导和分析了最优套期保值比率，解决了现有模型的一味追求风险最小化而忽略套期保值者期望收益率和交易成本的不足，为套期保值提供了一种优化策略。

A modified Particle Swarm Optimization algorithm is proposed and used to optimize the sidelobe level of plane arrays, in which special techniques as global best perturbation and jumped inertia weight strategy are adopted. The PSO algorithm is also used to select a better combination of optimal parameters for itself.

摘要该文运用一种改进的粒子群优化算法对不等幅激励的矩形平面阵列天线的最大旁瓣电平进行了优化，采用对全局最优粒子微扰和跳变的惯性权重策略，并使用粒子群算法本身对参数组合进行了优化选择。

Therefore, in order to guarantee the QoS requirements of each user, we proposed novel power allocation schemes to i minimize the maximum outage probability over all users, and ii to maximize the minimum rate under the outage probability and total power constraints.

由于每个用户的信道状态不同，采用传统的平均功率分配策略并非最优，为了满足用户的QoS要求，首先建立了在总功率受限条件下最小化最大用户中断概率的功率分配方案。

This thesis set forth the significance of information disclosure on hedging supervising, its development history and percent situation. It considers individually the disclosure function and related optimal hedging based two patters: incomplete contract and compellent information disclosure standard.

本文从信息披露监管的角度研究了企业的套期策略行为，首先全面阐述了套期信息披露在套期监管中的重要性、发展历程与现状，在基于非对称信息的前提下，分别考虑了基于不完全合约和强制性信息披露标准两种方式下的披露作用及相应的最优套期策略。

DIPSO incorporates the dynamic mutation, multi-subpopulations methods of IPSO, and changes the heights and the positions of the peaks by variable parameters and chaotic model. This algorithm uses multi-subpopulations to search for the highest peak in order to track the dynamic environments. Furthermore, DIPSO apperceives the changes of the environment by tracking the fitness value of the global optimal particle.

该算法是IPSO的动态版本，沿用了IPSO的动态变异策略、多子种群策略，在算法运行的过程中分别对环境进行参数设定型动态变化和混沌模型动态变化，利用多子种群分别对多个峰进行搜索，很好地实现了算法的追踪性能；对全局最优粒子进行实时跟踪，利用其适应度值的变化来发现环境的改变，并以此来引导群体对环境变化的感应。

According to the demand of series parallel system, raise the control strategy for the energy manage and prospective aims of full auto, then determine the control strategy that adopts the optimal work curve of engine.

根据混联式的系统要求提出了整车能量管理的控制策略及其需要达到的目标，确定了采用发动机最优工作曲线控制策略。

In the 1960s the uninhabited barrier island, located in the isolated Quintana Roo tropical forest enclave, was selected by the Mexican government as the site for the 1rst master planned resort – the cornerstone of a new externally orientated national economic development strategy based on Planned Tourism Development.

坎昆的民族游和特色游为研究旅游业的消费和选择提供了一个非常理想的环境。1960年，基于最新制定的外部市场导向策略（此策略是根据PTD制定的），这个坐落于被热带森林包围的Quintana Roo的荒无人烟岛被墨西哥政府选为最优开发之选。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。