优化问题

So a Matlab p rogram is developed to op timize interval estimation on variance of normal distribution and p rovide arith2 metic of hypothesis testing on variance of normal distribution.

5统计工具箱没有优化正态总体方差的区间估计，且没有给出正态总体方差检验的问题，通过编写Matlab程序，优化统计工具箱对正态总体方差的区间估计，开发正态总体方差的假设检验算法。

Particle swarm optimization algorithm is easy to be trapped into local minima in optimizing multimodal function.

针对利用粒子群优化算法进行多极值点函数优化时，存在陷入局部极小点和搜寻效率低的问题。

Which are important in object-relational databases, and how to translate the select-from-where cause into representations of monoid system are discussed.

发展了复杂水火电系统开停机优化的综合优化算法，在解决复杂的混合整数规划和非线性问题上向前推进了一步。

Some conclusions are obtained:(1) The interval data concept can rationally settle the apart component's dependence problem of monitoring data;(2) The survey point's displacement which is the material parameter's increasing function or deducing function can be used to back-analyse the material parameter's up and down limit; and (3) Both the interval parameter perturbation back analysis method and the interval parameter monotony back analysis method can obtain satisfactory interval parameters.

通过分析得出结论：(1)可利用区间数概念合理解决监测资料中分离分量相关性的问题；(2)可利用工程结构中位移为待反分析材料参数的增函数或减函数的测点位移的上、下限，来反演得到不确定性材料参数的上、下限；(3)工程算例分析表明，区间参数摄动优化反分析法和区间参数单调性优化反分析法都能得到令人满意的参数区间。

Above 3 respects, also be muddle-headed to those the proposal that the friend that is dropped by Baidu K offers, I wish be in later, the problem that optimizes to Baidu can have deeper experience, do not want blind to optimize Baidu.

以上三个方面，也是对那些糊里糊涂被百度K掉的朋友提出的建议，但愿在以后，对百度优化的问题能有更深刻的体会，不要盲目的去优化百度。

A non-linear programming model was established which considered both assignment of machine and time arrangement for the production environment with multi-stage, multi-machine and different refining number. The hybrid intelligent optimal scheduling method was presented which included assignment of machine based on expert system, neighborhood search based on man-machine interaction, and time optimization based on model conversion.

针对多阶段、多设备以及精炼工序重数不同的炼钢连铸生产调度问题，建立了综合考虑工序设备指派和作业时间安排的非线性规划模型，提出了基于专家系统的设备指派、基于人机交互的邻域搜索与基于模型转换的时间优化相结合的三阶段炼钢连铸混合智能优化调度方法。

And through the discussion of their localizations, a method is put forward to improve the optimal value of the objective function further by adjusting the LP's technique coefficients but not changing the optimal solution's structure, and the model is endowed with the inherent meanings of management innovation as well.

并在对两类线性优化逆问题自身局限性进行讨论的基础上，研究提出了在线性规划最优解结构不变的前提下，通过调整技术系数参数实现目标函数值进一步改善和优化的一种方法，且赋予了其企业管理创新的内在涵义。

In this paper , an efficient optimality criterion method is developed for the mini-mum weight design of WF I-section frames with constraints on stresses, displacements, local buckling and cross-sectional dimensions.

本文利用优化准则法解刚架结构优化设计问题，可以处理工程上常用的宽缘工字梁型剖面结构在应力、位移、板局部稳定性和几何约束条件下的最小重量设计。

The local decision space partitioning is given in the sense of maximum Bhattacharyya distance criterion. The optimality and the non-triviality of the partitioning scheme are proved. The reasonability of using Bhattacharyya distance as partitioning criterion is analyzed. The simulation results show that the partitioning method based on Bhattacharyya distance criterion is superior to that based on J-diversity criterion.

研究了基于 Bhattacharyya 距离准则的决策空间优化划分问题，求出了在 Bhattacharyya 距离最大意义下的决策空间划分方法，证明了这种决策空间划分方法的最优性和非退化性，分析了选择 Bhattacharyya 距离作为划分准则的合理性，并进行了计算机仿真比较，结果表明基于 Bhattacharyya 距离准则的决策空间优化划分优于基于最大 J-散度准则的决策空间划分。

Secondly, based on the introduction of the contemporary situation and the existing problems of the performance analysis on the industrialization projects of the comprehensive agricultural development, this part makes an explanation on the mentality of designing and the principle of optimality for performance analysis system, then builds macro-level and micro-level performance analysis systems and the related models.

其次，在分析当前我国农业综合开发产业化经营项目绩效分析现状、存在问题的基础上，阐明了本研究绩效分析体系的设计思路和优化原则，并构建了优化后的宏观、微观绩效分析体系及模型。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。