查询词典 combinatorial optimization problem

First, an attempt is made to improve the generability of neural network and the interpretability of fuzzy system. Then, combining empirical models with improved optimization algorithms, a systematic data-driven soft computing modeling and optimization framework is to be developed.

主要对以下内容开展研究：改进神经网络学习算法，简化模糊推理系统；改进遗传算法和粒群优化算法；开展软计算在工程材料中的应用研究。

Theoretically, its calculation complexity is studied, while it is tested empirically by learning multi-samples generated randomly. The comparative analysis and applications show it has some merits of rapid searching and good clustering effect. B3. An immune network optimization algorithm with information feedback, which can solve special complex function optimization problems with high dimensions which objective functions are formed by summing multi-subobjective ones, is constructed based on the clone selection principle and the immune network regulation of the idiotype immune network.

为了对免疫系统中抗体如何学习抗原特征的整体行为有一定的认识，从单个抗体识别抗原及多个抗体并行识别抗原的特征出发，利用免疫应答的相关原理及免疫细胞的免疫功能设计了适合于批量样本聚类的抗原特征学习算法，理论上分析了其计算复杂度，获得了此算法中的关键参数与其搜索性能的关系；应用上，该算法通过对实际的多样本学习，获得了搜索速度快及聚类效果好的优点，比较分析表明这种方法是可行的和有效的。

Kinematical optimization of redundant robots is proposed to be simultaneous with dynamical optimization according to the characteristics of their redundancies.

利用冗余度机器人的冗余特性对其运动学和动力学同时优化。

The experimental results show that MPAGA has higher optimization precision and shorter optimization time than MAGA.

实验结果表明，该算法在全局优化结果的精度、优化收敛速度方面均优于MAGA。

The model definition language and the model manipulation language, which are suited for representing mechanical optimization models, are also studied. To choose the optimization methodic softwares, the characteristics of different programs have to be understood deeply, so it is needed to evaluate related programs.

机械优化设计模型是有前处理过程的复杂模型，模型的管理和存贮是计算机辅助建模的关键，为此，又研究了适合于描述机械优化模型和方便智能化处理的模型定义语言和模型操作语言，并建立了相应的模型库管理系统。

Nevertheless, induced bilevel programming models for the former category usually belong to a subject of nondifferentiable optimization problems, whereas that for the latter category becomes the continuously differentiable optimization problems.

此文首先从模型和算法的角度总结了有关这类问题已有的研究成果，接着介绍有关这方面的最新的研究进展，即如何把用户基于平衡原则下的交通网络优化问题的双层规划模型统一地转换为一个连续可微的单层最优化问题，并设计统一的算法。

As the shape optimization design of structural element sections belong to structural optimization,which has its own traits such as discreteness, nondifferentiable and non-convexity,while the traditional optimal methods are not applicable.

结构截面形状优化设计属于工程结构优化问题，由于工程结构优化问题具有离散性、不可微性和非凸性等特点，而传统的优化算法对所优化的问题往往要求连续、可微、非凹等前提条件，所以已不再适合用于工程结构优化问题的求解。

Therefore based on analysis of the status quo and the bottleneck points of the drilling and completion, effective measures have been put forward, including optimization of casing program, application of UBD and compound drilling, adoption of nonpermeable drilling fluid, diverting technology, rotating while cementing, casing optimization, horizontal drilling and extended reach well technology, etc.

为解决上述问题，在对钻井完井现状和难点进行分析的基础上，提出了有效的应对措施，主要包括优化井身结构，推广应用欠平衡钻井和复合钻井技术，采用非渗透钻井液、屏蔽暂堵技术和旋转固井技术，优选套管射孔完井，开展水平井和大位移井钻井工艺等。

Miscellaneous systems result in the problems of nonsynchronous information,dispersed management,low efficiency etc.,even the optimization of each system can not attain the optimization of whole essentially.

系统的繁杂带来了系统之间信息不同步、管理散乱、效率低下等问题，即使各个系统的最优也并不一定能达到整体最优。

Among the methods of on-line optimization of basic control param eters,global optimization is an advanced technology.

针对一定的测试规范进行控制参数的全局优化是一种先进的思想。

Effective local search tactics reaches local searchers when they are ready to buy - with every way that it is possible for them to buy from you.

有效的地方搜索策略达到当地的搜索，当他们准备购买-以各种方式，这是他们有可能从您那里进行购买。

The first two are periodic sentences for their beginnings; and the fifth and the last are also periodic sentences each for the embedding of a parenthetic structure.

1960年代中后期，当战后女权主义和当时的许多其他抗议运动在西欧和北美发展成某种势力时，性别的概念演绎成补充和延伸生物性别差异的概念。