查询词典 combinatorial problem

A boundary identification problem, i.e., inverse geometry problem of two-dimensional heat conduction was solved by using boundary element method and conjugate gradient method-based inverse algorithm.

采用基于边界元法和共轭梯度法的反演算法求解二维导热边界识别问题，即几何反问题。

Parametric evaluation function can condense the complicated multi-objective and multi-constrait problem into a single-objective unconstrained problem, then solved with conjugate gradient method.The parametric evaluation function method decreases the optimization difficulty,and makes the solution away from the boundary of feasible region during the optimization process,which makes all the objectives optimized simultaneously.

参数评价函数把复杂的多目标多约束优化问题转化为单目标无约束问题，然后用共轭梯度法进行求解，不但降低了求解难度，而且使得在优化过程中其解远离可行域的边界，保证了对多目标中所有目标同时进行优化。

The problem remains NP-complete even if all expressions are written in conjunctive normal form with 3 variables per clause (3-CNF), yielding the 3SAT problem.

问题依然存在NP完全问题，即使所有的表现形式是书面的合取范式与3个变量为第（ 3合），收益率的3SAT问题。

Study on the psychology and mental salvation of the urban vulnerable groups can help them know their problem that they are faced. It can help them take scientific and rational attitude to treat temporarily inextricable phenomenon and unable conquerable problem. It cannot bring on panic psychology. It can meet peoples deep level mental demand.

对城市弱势群体心态和心理救助进行研究，它有利于帮助人们正确认识所面临的问题，对暂时无法解决的现象或者自己无法克服的问题采取比较科学和理性的态度，不至于出现心理恐慌，同时得到更深层次的心理需求。

Solving the consistency problem In order to realize group work application system, how to control the operation to multi-copied data without destroying the consistency is a very important problem.

解决一致性问题为了实现群体工作应用系统，如何控制对多拷贝数据的访问而不破坏数据一致性是一个非常重要的问题。

Based on the idea and method of problem frame,consistency of viewpoints,integrated manner and integrated process of viewpoints are analyzed and discussed,and a method of integration of viewpoints based on problem frame is proposed.

基于问题框架的思想和方法，该文讨论了视点的一致性、集成方式、集成过程等，提出了一种基于问题框架的视点集成方法。

As the optimization problem is constrained, traditional genetic algorithms are no longer applicable to this problem.

由于它是一个带约束的优化问题，传统的遗传算法对它不再适用。

Firstly, the problem is converted into a constrained single-objective optimization problem.

提出了基于粒子群优化的多目标Memetic算法。

One way to look at this problem is as a resource constrained project scheduling problem.

研究这类问题的一种方式是资源项目约束的排定问题。

We are left with at least two residual issues: the problem of "broad" contextually determined states of mind, and the qualia problem.

我们还有至少两个留下的问题："宽"语境决定的心灵事态，还有感受质的问题。

We were cousins—his grandfather was King of Scots,and his great-grandfather was Henry VII of England.

我们是堂姐弟——他的祖父曾是苏格兰国王，他的曾祖父是英格兰的亨利二世。

I do want to help you, but I am in a quandary now!

我是想帮你，但是我现在左右为难啊！