查询词典 object function

The offered simples can not completely accorder with the assessment model, so the error was regarded as the object function, and the optimum probability assessment model was presented. In order to optimize the model's distribution parameter, the improved genetic algorithm was adopted.

对原始数据在评估模型中产生的误差作为目标函数，建立概率评估优化模型并采用改进遗传算法对分布参数进行优化计算。

The object function of IGM(1,1) is unable to be gained by classical optimization approaches due to its discontinuousness and non-differentiability. We design a genetic algorithm for IGM(1,1) based on its characteristics and test the algorithm with an example. The result acquired shows that the simulation precision of IGM(1,1) model is much higher than that of GM(1,1) mode

由于IGM(1，1)目标函数非连续，不可导，用传统的优化无法求解，本文针对IGM(1，1)模型的特性设计了求解该优化模型的遗传算法并进行了算例验证，求解结果表明了IGM(1，1)模型的模拟精度远高于GM(1，1)模型。

However, the vast computation cost, the implicity of object function and discontinuousness of search space limit the application of traditional gradient-based optimization methods.

然而，由于计算时问长，目标函数无法显式表述，搜索空间可能不连续等因素，很难直接基于数值仿真通过梯度法进行设计优化。

The optimal model of indirected cost allocation for maximizing profit of enterprises using cost based pricing has been developed.The object function of maximizing profit has been shown convex.Then,a method of optimal indirected cost allocation for maximizing profit has been proposed.

在此基础上建立了企业在采用成本定价法时，以获得最大利润为目标的间接固定成本分摊的优化模型，证明了成本分摊的利润性能函数是一个凹函数，由此给出了一种利润最大化的间接固定成本的优化分配方法

The finite element analysis of static electric field and the orthogonal design method are combined and used to optimize ECT sensor with an overall score of the reconstructed image fidelities of typical flow patterns as the optimum object function. The overall quality of the images reconstructed is improved effectively by this optimum method.

提出一种以典型流型重建图象质量综合评分最优为目标，有限元分析与正交设计相结合的ECT传感器优化设计方法，有效地改善了重建图象的总体质量。

The method uses maximum between-class variance technique,by the optimization of the niching particle swarm optimization object function,the optimal thresholds can be gotten,and the image by use of the thresholds can be segmented.

该方法基于最大类间方差阈值分割技术，用小生境粒子群算法对适应度函数进行优化，得到最佳阈值，并用该阈值对图像进行分割。

The object function includes the amortized investment and run charge of every year.

根据某油田的实际井位分布情况，运用该软件进行了设计。

This model optimizes the 110 kV-substation number, its capacity and unit number, using the minimum cost of network construction and grid energyloss as object function, the capacity-load ratio of transformer and the radius of power supply as constraint condition. DIPSO is used to find out the best result of this model.

模型以网络的建设费用和运行损耗费用最小化为目标函数，以变电所容载比和供电半径等为约束，对给定负荷水平下的城市中心负荷区110kV变电所个数、变压器台数、容量以及10kV出线回路数进行优化，并用改进粒子群算法计算求得最优解。

Based on these, an improving μ-synthesis is presented, with which the high-purity distillation is designed well. 2. The robust performance problem of MIMO plant is explained with the plant direction angle, which shows that the robust performance varies with different input uncertainties and the μ-synthesis should be applied correctly according to the uncertainty structure. 3. Condition number and bandwidth are the important items for robust performance design in MIMO system. The H〓 two-block problems can not deal with the robust performance design of MIMO system because of the condition number cancellation. A general μ-synthesis procedure for MIMO system with uncertainties is presented. 4. For the SISO system, the object function in robust performance is amplified by at most 〓 than that of H〓 two-block problems in value: So the robust performance of SISO system can be done with the H〓 two-block problems to avoid the complicated μ-synthesis procedure. 5. All the conclusions and methods presented in this paper are demonstrated by some typical design examples.

从而形成一种改进的μ综合方去，并对精馏塔病态对象进行了鲁棒性能设计，得到令人满意的结果；（2）利用对象的方向角解释了MIMO对象鲁棒性能设计出现问题的原因，并提出不同输入摄动形式下系统的鲁棒性能问题也并不相同，因此利用μ综合处理鲁棒性能设计时，应根据不同的摄动情况采用不同的结构进行设计：（3）条件数问题和带宽问题是MIMO系统鲁棒性能设计的两个主要问题，指出由于条件数对消的存在使得一般H〓两块问题无法处理MIMO系统的鲁棒性能设计，而μ综合方法则是处理MIMO系统鲁棒性能设计的有效方法，并给出了其处理MIMO系统鲁棒性能设计的一般性方法；（4）提出对于SISO系统H〓两块问题（S/T问题、S/KS问题）的设计指标函数与鲁棒性能设计的μ指标函数在数值上最大差〓倍，因此对于一般SISO系统的鲁棒性能设计可以简单地用一般的H〓的两块问题处理，而避免μ综合设计的复杂过程；（5）本文中提出的结论和算法都利用H〓/μ发展中的典型例子：Doyle-Stein问题，Safonov的战斗机模型，精馏塔对象等进行了设计验证。

In this paper, taking the reliabilities of constraints into the modified constraint conditions, optimum design of object function was carried.

在优化设计的平台上，综合考虑每一约束的可靠性，产生通过可靠性设计后的改性约束条件，再在众多的改性约束条件的前提下，进行目标函数的优化设计。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。