查询词典 combinatorial optimization problem

After the structure of the hydraulic booster is defined, in order to solute the problems of the strength and stiffness verification aimed at the parameter design and optimization of the device, the FEA software ANSYS is applied to calculate and analyze the result, the stress and displacement distribution diagram is obtained, and the output results is analyzed in detail. At the same time, in order to reach the structure destination of optimization, the dimension parameter is altered and analyzed, then all kinds of analysis result is listed and contrasted.

在液压增力装置的结构确定之后针对这种超高压液压增力装置在参数设计和优化过程中的强度和刚度校核问题，使用有限元分析软件ANSYS进行建模及计算分析，得到了输出缸各部位的应力及位移分布图，并对输出结果进行了详细地分析；同时，改变输出缸的尺寸参数并进行分析，将各种分析结果列表对比，达到了结构参数优化的目的。

Stochastic convex programming; Monte Carlo methods; Financial optimization; Convergence with probability one; Optimality condition; Monte Carlo penalty function methods; Nonsmooth optimization; Directional derivative; Subdifferential; Confident interval; Conditional Value-at-Risk; Optimal reinsurance

基础科学，数学，运筹学随机凸规划； Monte Carlo方法；金融优化；以概率1收敛；最优性条件； Monte Carlo罚函数法；非光滑优化；方向导数；次微分；置信区间；条件风险价值；最优再保险

In nowadays literature, schedule recovery problems are mainly modeled by time-space network, solved using Lagrangian relaxation heuristic algorithm, subgradient optimization and commercial optimization software ILOG.

目前国外主要采用时空网技术建模和拉格朗日启发式算法、次梯度优化法求解。

The process of industry structure optimization and adjustment is the process of increasing benefit, otherwise, if we want to increase economic benefit, we must optimize and adjust industry structure, so the task of industry structure optimization will be subsistent forever.

结构优化调整的过程就是提高效益的过程，反之，要想进一步提高经济效益，则必须进行产业结构的优化调整，结构优化的课题是永远存在的。

ABSTRACT Topology and routing optimization is the substratum of the optimization in communication networks.

拓扑结构和路由优化是通信网络优化的基础，其他的优化功能，如：流量控制、资源管理都是在拓扑结构和路由优化的基础上实现的。

In this paper,a weight coefficient is introduced into Quantum-behaved Particle Swarm Optimization and an improved QPSO for the parameter optimization of PID controller is proposed.

在分析量子粒子群算法的基础上，在算法中引入了权重系数，提出使用改进的量子粒子群算法优化PID控制器参数。

Particle Swarm Optimization Algorithm with Organization is an evolutionary algorithm based on population intelligence and exhibits good performance on optimization.

提出了带组织的粒子群优化算法。粒子群优化算法是一种基于群体智能的演化算法，具有良好的优化性能。

Quantumbehaved particle swarm optimization developed on the basis of classical particle swarm optimization is a method with better convergence and stability.

量子粒子群优化算法是在经典的微粒群算法的基础上所提出的一种有较高收敛性和稳定性的进化算法。

On the other hand, applications of optimization technique in real world engineering design and the size of optimization problems are not advanced synchronously.

而与此相对应的是，优化技术在实际工程设计中的应用以及求解规模却并未同步发展。

Then, it studies the supply chain management system as a complex system to confirm the state existing during operating of the system. After that, it conducts a probability analysis on the state which the system located by applying supplement variable method, and establishes the model of distributed parameter system in a form of partial differential equations. Combining C0 ? semigroup theory in the functional analysis, it conducts a dynamic analysis on the established mathematical model. Using this method, it obtains the mathematical expression of the dynamic solution and the steady state solution, and proves the uniqueness, non-negativity and the asymptotic stability of the system solution. This dissertation applies the Matlab tool and uses two-step, three-step Simpson integral equation to imitate the condition of system solution. Then, it adds possible mode of failure and the optimization adjustment state to the system, based on which it has established the distributed parameter system model which is described by partial differential system of equations. Combining the functional analysis C0 ? semigroup theory, it studies the established mathematical model, and obtains the mathematical expression of the dynamic solution system and the steady state solution. It has proven the existing of uniqueness of the system solution, the asymptotic stability of system solution and the system solution. In addition, it has lying the theory rationale for further analysis and the research on the optimization of system.

本文首先简要综述了供应链理论、可靠性研究、鲁棒性研究以及供应链鲁棒性研究的现状；然后，将供应链系统作为一个复杂系统来分析，确定了系统运行过程中所经历的状态，通过引入补充变量的方法，建立了用偏微分方程组描述的分布参数系统模型，用泛函分析中的C_0 -半群理论得到了系统动态解和稳态解的数学表达式，证明了系统解存在的唯一性、非负性和指数阶渐近稳定性；并借助Matlab工具，利用二阶、三阶辛普森积分方程模拟系统解的性态，并给出系统动态解的仿真图；本文又对上述系统增加了系统可能失效状态和优化调整状态，并在此基础上建立了用偏微分方程组描述的分布参数系统模型，同样用泛函分析中的C_0 -半群理论对所建立的数学模型进行了研究，得到系统动态解和稳态解的数学表达式，证明了系统动态解存在的唯一性、非负性及渐近稳定性，为进一步分析和研究供应链优化奠定了理论基础。

A strange and mysterious deep sea creature.

一种奇异、神秘的深海生物。

It's a yellow rectangle .

这是黄色的长方形。