查询词典 NP

Partitioning problems belong to a kind of NP- complete optimization problems, which occur frequently in the real world. This paper intr oduces a solution to partitioning problems with satisfactory results by using extende d Hopfield neural network.

摘 要 划分问题是一类常见的NP完备的优化问题，本文利用推广的Hopfield神经网络模型解决了划分问题，并取得了较好的效果，为这个问题的解决提供了一条新的途径。

This kind of parallel processing hugely improves the computational speed, and can change some NP problems that cannot be accomplished by classical computers, i.e., the complexity of the problems exponentially increases with the increase of bits, to P problems, i.e., the complexity of the problems polynomially increases with the increase of bits. In 1994 Peter Shor at Bell Laboratory proved that quantum computers could efficiently solve the problem of Large Number Factorization, which was the security footstone of nowaday classical cryptosystems, while none of any classical computers could implement this.

这种并行处理极大地提高了计算速度，可以把一些经典计算中无法计算的NP问题即问题的复杂度随着比特位数的增长而指数上升，变成P问题即问题的复杂度随着比特位数的增长以多项式上升。1994年，Bell实验室的Peter Shor证明量子计算机可以有效解决经典计算机所不能解决的大数因子分解问题，而这恰恰是目前经典密码的安全性基础。

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。

Conventional fraction 3dimentional conformal radiotherapy was performed, using 15MV xrays from linear accelerator, after 2 cycles of NP chemotherapy, with total dose 36 to 66 Gy.

放疗联合化疗组45例，接受适形放疗联合NP方案化疗，NP方案化疗两周期后续行三维适形常规分割放疗，之后再行NP方案化疗。

Through comparing with the results by simulation to study the effects of theprojectile"s final velocity, the angle of rotation and the ballistic trajectory"s migration withdifferent projectile"s rotating speeds, different target"s moving speeds and differentpenetration angles.

通过比较数值模拟的结果来研究不同弹头转速、目标速度、侵彻角对侵彻过程中弹头最终速度、翻转角度和弹道偏移的影响。

I love stationery and all the accoutrement of writing.

我爱文具以及所有的书写的工具装备。