查询词典 Pareto

In the algorithm,the theory of particle system changing from non-equilibrium to equilibrium is used to define the Rank function and Niche function for solving multi-objective problems,all the individuals in the population have chance to participate the evolving operation to solve the Pareto optimal solutions of the multi-objective problems fast and evenly.

由于该算法使用了粒子系统从非平衡达到平衡的理论来定义求解多目标问题的Rank函数和Niche适应值函数，使得种群中的所有个体都有机会参与演化操作，以达到快速、均匀地求出多目标优化问题的Pareto最优解。

Comprehensive evaluation, Multi-objective decision making, Data envelopment analysis, Pareto efficiency solution, sample unit

中文关键词综合评价，多目标决策，数据包络分析，Pareto有效解，样本单元

Combining the shortcoming of multi-objective evolutionary algorithm based on the idea of objective space dividing with high calculation complexicity, this paper proposed an improved new algorithm which processed following characters: transforming the dominance relationship among individuals' Pareto to the rank relationship of sum index of interval in dividing space; simple and efficient environmental choosing method based on index ranking; an individual crowding algorithm which rapidly choosing the nearest to origin.

针对现有基于目标空间分割思想的进化算法计算时间复杂度高的缺陷，提出了一种改进的基于目标空间分割的多目标进化算法。该算法具有以下特点：把个体之间的Pareto支配关系转换成分割区间索引值排序关系的目标空间分割算法；简单高效的基于区间索引值排序的环境选择算子；一种快速的优先选择最接近分割区间原点的个体拥挤机制。

For solving Multi-objective and multi-restriction optimization problem , this paper used non-dominated ranking method, elitist preserve strategy, niche approaches, and presented an individual vector module adaptive function as wash out rule, then an improved Pareto multi-objective optimization with genetic algorithm was found.

为解决含多个目标和多约束的优化问题，本文结合了非支配排序思想、精英保留策略，小生境技术，并对传统的小生境技术中基于个体适应度的淘汰技术进行改进，提出了一种向量模适应度函数来作为淘汰准则，得到一种改进的Pareto遗传多目标优化算法。

Scrolls profile optimization; Whewell equation; Nondominated Sorting Genetic Algorithm; Pareto optimal sets

涡旋型线；形状优化；Whewell方程；非劣优选遗传算法；Pareto最优解集

Wavelet neural networks; Pareto genetic algorithm ; fluidic element ; turbomachine ; optimization design

小波神经网络； Pareto遗传算法；射流元件；叶轮机械；优化设计

A multiobjective optimization model of concrete bridge deck is therefore developed for several objectives which conflict with each other,such as minimizing the total cost but maximizing the performance simultaneously,and the niched Pareto genetic algorithm is introduced to s...

建立了桥面板维修的多目标优化模型，同时满足费用最小化以及性能最大化等多个相互冲突的目标，并采用小生境Pareto遗传算法求解。

In this paper, a program named NPGA-GW is developed for groundwater system multiobjective management, based on the niched Pareto genetic algorithm, which is coupled with the groundwater flow simulator MODFLOW and the contaminant transport simulator MT3DMS.

将地下水流模拟程序MODFLOW和溶质运移模拟程序MT3DMS相耦合，采用基于小生境技术的Pareto遗传算法进行求解，开发了一个用于地下水系统多目标管理的应用程序NPGA-GW。

As for the importance of the distribution of the solutions on the Pareto front, the following measures are introduced in the dissertation: the Niching technique for keeping the genetic diversity and the real coding combining with the average crossover operator for eliminating the so-called"ending effect"of the GAs coding.

求解Pareto波阵面时，解的分布性至关重要，本文从两个角度来提高解的分布性：一是采用小生境技术解决了基因材料多样性损失问题；二是采用常规实数编码配合平均交叉算子解决了端点效应问题。

For one-dimension optimization problem, stage pressure ratio and flow angles at the stator trailing edges, solidities at the stator and rotor trailing edges are considered as design parameters, To demonstrate feasibility of the present method, a multiobjective optimization of a six-stage compressor design was performed for maximization of the overall isentropic efficiency and the total pressure ratio, It obtained dozens of reasonable and uniformly distributed Pareto-optimal solutions that outperformed the baseline design in both objectives.

对于一维优化问题，以某六级高压压气机为对象，选取各级的级压比和静子出口气流角以及转子、静子的稠度为变量，得到了几十个在两个目标上均优于初始设计的Pareto最优解。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。