查询词典 penalty function

A class of bilevel multi-objective programming was converted into the problem of equivalent single-level multi-objective programming. Then a new chaos genetic optimization algorithm was presented by using the inversion property of genetic algorithm and the ergodic property of chaos optimization method and combining with the exact l_1 penalty function.

针对求解一类二层多目标规划问题，首先将其转化为等价的单目标规划问题，然后利用遗传算法优化的反演性和混沌优化方法的遍历性，并结合精确罚函数求解非线性约束优化问题，提出了求解此类问题的混沌遗传算法。

Further, a direct interpolation method is used to impose the essential boundary condition without use of the penalty function and the Lagrange multipliers method.

通过悬臂梁和无限开孔板两个算例验证了本文方法较传统的无网格局部Petrov-Galerkin方法在计算效率上有了较大的提高。

The optimization method is genetic algorithm based on exterior point penalty function method.

采用基于外点罚函数法的遗传算法，对精馏塔优化问题进行求解，获得精馏塔的最优操作状态。

At the early iteratives, the mutation rate is bigger and the aim is to make particles to explore smaller and isolate region and to avoid the algorithm trapping to the local optimum. While the algorithm runs, the mutation rate will be decreased to reduce the disturbing to the particles. IPSO adopts a new method that congregates some neighboring individuals to form multiple sub-populations in order to lead particles to explore new search space. Additionally, our algorithm incorporates a mechanism with a simple and easy penalty function based on the largest distance between the particle and the boundary of the feasible region to handle constraint.

IPSO采用了一种新型的变异策略，变异概率随着算法的运行是动态变化的：在算法运行初期，变异概率大，其目的是使算法不但能够探测到目标空间中的孤立区域，而且避免搜索陷入局部极值；在算法运行后期，变异概率逐渐变小，以减少对粒子的扰动；算法通过将部分具有邻近距离的粒子聚集成核形成多子群引导种群中粒子的飞行；采用一个简单的基于粒子与可行域边界最远距离的罚函数处理约束的机制，使得算法高效实现。

In contrast to the penalty function method, the rule requires no additional parameters and can guide the swarm to the feasible region quickly.

与惩罚函数法相比，可行基规则不需要额外的参数，且指引粒子迅速飞向可行域。

A penalty function method of finite element was proposed for nonlinear contact stiffness of joint.

提出了一种在有限元分析中用罚函数法分析结合部非线性接触刚度的方法。

A penalty function method of finite element was proposed for nonlinear contact stiffness of joint. The stiffness of joint was obtained by experiment.

提出了一种在有限元分析中用罚函数法分析结合部非线性接触刚度的方法。

After introducing the mechanism of seismic displacement control with dampers, 3 kinds of assessment functions for seismic response control effect are formulated based on the seismic response characteristics of longspan suspension bridges and a new optimal placement method of dampers using penalty function and first order optimization theory is proposed.

从地震位移控制的原理出发，根据大跨悬索桥结构地震响应的特点，建立了其地震位移控制效果的3种评估函数，提出了一种基于罚函数和一阶优化原理的阻尼器最优布置方法。

The abc are to get the generic "default parameters" for use in the comparison program CONTRAST which aligns protein sequenes based on their 3D-structure, to confirm the efficiency of the differential -geometric representation of protein backbone by comparing 3 different algorithms of the curvatures and tortions, and tO find apropriate gap penalty function.

中国科学院上海生物化学研究所，上海 200031摘要：继前面的工作把测试蛋白从三族扩大到十一族，寻求联配参数的普适"缺省值"；比较不同的主链曲率和挠率的计算方法，进一步确认主链的折线线分几何刻划方法的有效性；寻找有效的可变缺失突变惩罚函数的形式。

In addition, by using an exact penalty function, we globalize the proposed method.

此外，我们利用不可微精确罚函数对算法进行全局化。

He and Nina moved to California and lived at 2005 Ivar Street, Apt.

他和Nina搬到加州，并在2005年伊瓦尔街，公寓生活。

Droperidol （ potently inhibits transfected HERGchannels and this is the probable mechanism for QT prolongation.

氟哌利多有效地抑制了转染的 HERG 钾通道，可能是 QT 间期延长的机制。