查询词典 integer optimization

And the design of the optimal reliable guaranteed cost controller is formulated as a convex optimization problem, which can be solved by the existing convex optimization techniques .

在此基础上，通过建立和求解由一组线性矩阵不等式所表示的凸优化问题，得到最优可靠保性能控制律的设计方法。

As a result, it shows thatthe static or dynamic subsystem optimum alone is not equal to the system optimum. Three initial value problems met in the optimal design of flying vehicle are studied andconclusions are derived that: orthogonal test method can be adopted to decide the initial valueof static optimization problem, some mathematical techniques can be used to deal with thecostate variables of Maximum Principle and decide the initial value of the costate variable,the indirect method can be used to get the analytical solution under ideal case to guide thechoice of the initial control curve in the direct method. With some numerical examples oftrajectory optimization, it shows that all these methods are useful not only in accelerating theconvergence but also in converging to the global optimum.

针对飞行器优化设计中的三种初始值问题进行了研究，以远程弹道导弹弹道的工程优化为例说明，对于静态优化问题，采用正交试验法选取初始值，不仅可以大大加快收敛的速度，而且更有可能收敛到全局最优解；以气动力辅助变轨问题为例说明，用共态变量的一阶泰勒级数展开可以解决极大值原理中共态变量初值难于确定的问题；以二级弹道导弹的主动段弹道优化为例说明，利用间接法在理想情况下得到的解析解来指导直接法初始控制曲线的选择，将大大有利于提高直接法的收敛速度。

In chapter 5 the problem of workflow model optimization is analyzed. In the aspect of model structure optimization, an extended critical path method is introduced.

在结构优化方面，介绍了一个扩展的关键路径分析法，它增加了可选路径和循环这两种结构，能够分析工作流模型。

Concerning the disadvantage of the original PSO that is easily trapped in the local optimization and the convergence speed is slow in the evolution later, a particle swarm collaborative optimization algorithm based on velocity angle was proposed. The strategy of inertia weight adjustment was adopted based on cumulative distribution function of Gaussian distribution.

针对PSO存在易陷入局部极值、进化后期收敛速度缓慢的缺点，提出一种基于速度夹角的粒子群协同优化算法，并且引入了一种基于高斯分布的累积分布函数的惯性权重调整策略。

A new grouping optimization method based on the similarity of parts is proposed,which is intended to solve the low-efficiency and local optimization problems in large-scale cutting stock problem.

针对诸多优化算法在处理大规模下料问题时易于陷入局部最优解和时间效率低下的问题，提出基于零件相似性特征的分组优化方法。

Considering the characteristics of the operating process optimization for high-temperature cyclic loads a new method was developed to solve the nonlinear optimization problem.

并结合高温循环载荷作用下运行过程优化的特点，提出了一个新的考虑活动约束集的非线性优化求解方法。

The optimization of the decelerator on a wheel-side is the first and an important step toward the optimization of a loader in its driving system.

轮边减速器的优化是装载机传动系统优化的第一步，也是重要的一步。

The content of process optimization include four parts: the choice of decision variable; the determination of object function; the establishment of constraint condition and the choice of optimization algorithm.

过程优化问题需要解决决策变量的选取、确定目标函数、建立约束条件、选择优化算法等四个方面的问题。

Chapter 4 is the hedging strategies of optimization in insurance:In virtue of Galtchouk-Kunita-Watanabe Decomposition Theorem to decomposite the natural value prcess V_t~* toupdate the risk expression, then we can get the hedging strategies of optimization with minimal risk.

第四章最优保险对冲策略：利用Galtchouk-Kunita-Watanabe分解定理将本性价值过程V_t进行分解。采用一定的替换技巧可将风险表达式重新表示，从而找到保险公司所能采取的最优对冲策略。

The optimization model is built, which has the function of decreasing the number of design variables and improving the efficiency of optimization. The Relative Difference Quotient Algorithm is advanced for the optimum design.

建立了能够减少设计变量数量和提高优化效率的优化模型；改进了相对差商法；建立了适用于中剖面结构优化的遗传算法数学模型。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样