查询词典 shortest route problem

The problem is just the known so-called Sylvesters problem of the 15 schoolgirls, which was solved by R.

这就是著名的Sylvestev 15个女学生问题，这一问题直到1974年才被R.H.F。

FREE RIDER PROBLEM:INDIVIDUALS RELUNTANCE TO CONTRIBUTE VOLUNTARILY TO THE SUPPORT OF PUBLIC GOODS REFERRED AS THE FREE RIDER PROBLEM.

免费搭车问题，个人只享受好处而不做出贡献，大意是如此了，我是活该，最近忙着考试，BLOG疏于打理，人来的越来越少也是我活该，免费搭车者不是那么好当的，要天时地利人和，有得必有失，半个月之后，收回失地。

Historical creed method is fore-and-aft analytic poverty problem, realistic method undertakes an analysis to impoverished problem current situation.

历史主义方法是纵向地分析贫困问题，现实主义方法对贫困问题现状进行分析。

Firstly, on the basis of defining the characteristics of project and reviewing the mathematical models for RCPSP, we constructed the mathematical model for RCPSP under the condition that there is non-fixed duration and splittable tasks in project; In order to solve above model, we emphatically discussed the basic principle of the swarm intelligence algorithm--the particle swarm optimization algorithm as well as improvement research for current algorithm, and then proposed a new improved particle swarm optimization algorithm and analyzed its application process in the resource-constrained project scheduling problem; Lastly, in order to confirm the validity of the model and the algorithm, we took an experiment based on 108 instances that produced by problem instance generator which was developed by our team.

首先，在对RCPSP项目特征进行界定以及对项目进度优化模型回顾的基础之上，构建了基于活动工期不固定、任务可拆分特征的RCPSP的数学模型；为了求解上述模型，本文详细阐述粒子群优化算法(Particle Swarm Optimization，PSO)的基本原理以及当前对其改进的研究成果，提出了一种新的改进PSO算法，并对其在RCPSP的应用过程进行了设计；最后，为了检验模型的有效性及算法的优越性，基于梯队内部开发的案例生成器生成的108个算例，进行了仿真试验。

One of the most important, most difficult, and most exasperating unsolved problem s of operator theory is the problem of invariant subspaces

算子理论中最重要、最困难也最令人烦恼的未解决问题之一就是不变子空间问题。

Timetabling Problem is a Multiobjective Combination Optimization Problem with constraints, and also has been proved NP-Completed.

排课问题是一个有约束的、多目标的组合优化问题，并且已经被证明为一个NP完全问题。

Among them, ETA belongs to the famous timetabling problem which is a NP complete problem and has been a research puzzle for a long time.

其中考试时间安排属于著名的时间表问题TTP，TTP 问题属于NP完全问题，是研究的一个难题。

The timetabling problem is an NP-hard multiobjective combinatorial optimization problem with constraints.

排课问题是一个有约束的、多目标的组合优化问题，并且已经被证明为一个NP难问题。

But now, the underachievement problem is still serious in middle school, especially about subject problem.

但时至今日，学业不良问题仍然困扰着中小学，尤其是学科学业不良。

If your boss is calling or drawn into the work,you'd better reconsider the urgency degree of the problem about which you want discuss with him,and don't waste the time of the boss on the problem that you can deal with on your own.

如果你的上司在打电话或者专心工作，最好重新考虑你要找他/她处理的问题的紧急程度，不要在你自己可以解决的小问题上浪费上司的时间。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。