查询词典 stable convergence

The stability of the improved Elman neural networks is proved in the sense of Lyapunov stability theory. The optimal adaptive learning rates are obtained, which can guarantee the stable convergence of the improved Elman networks.

在Lyapunov稳定性意义下分别给出了改进网络的稳定性证明，得到了保证网络稳定收敛的最佳自适应学习速率。

At last, the application of above modeling and control strategies has been demonstrated by the simulations of a nonlinear dc motor control problem. Under this control strategy, system identification phase is not needed, and only a controller based on the recurrent neural network is provided. Because the control and learning laws are designed with stable theory, stability and convergence problems are solved here with rigorous analysis, which can not been analyzed easily when usual BP neural networks are used.

最后通过非线性电机模型的仿真研究，表明了基于上述动态动态递归神经网络模型对非线性系统进行自适应控制的实际可行性，并且采用这种方法不需要对系统进行离线辨识，整个系统只采用了一个基于动态递归神经网络的控制器，由于整个系统是基于稳定性理论设计的，有效地解决了应用BP网络等其它前向网络时系统的稳定性和收敛性难以分析的问题。

The used chaotic neural networks has many merits, such as transient chaos and stable convergence etc., and it can effectively overcome the drawbacks of easily getting stuck in local minim in conventional Hopfield neural networks.

所提出的方法具有许多优良特性，即暂态混沌特性和平稳收敛特性，能有效地避免传统 Hopfield神经网络极易陷入局部极值的缺陷。

We study the attractive manifold method of the iterative learning control for a class of degenerate systems in the chapter Ⅲ. When the learning control systems don't satisfy the convergence condition, we present the learning control method satisfying the condition by constructing a stable and attractive manifold corresponding system. This method makes the system with better robustness.

第三章主要研究了一类退化系统目标跟踪的迭代学习控制的吸引流形方法，在系统不满足一般收敛条件的情况下，我们通过构造一个相应于所给系统稳定而吸引的流形，导出所满足要求的迭代学习控制，该方法对系统有较好的鲁棒性。

The APW in summer is less than 25 mm which is the least limit value of monsoon areas.This means that Xinjiang is not affected by monsoon.The geographic distribution of APW is adverse with that of precipitation,videlicet,higherAPW values corresponding to lower precipitation values.With the effects of westerly winds,the APW mode presents as an uniform change within Xinjiang area and has a stable distribution.It is very different from Xinjiang rainfall mode which changes a lot spatially.As mentioned above,there is no obvious change during 1961～2000,this indicates that APW is not a dominant factor determining precipitation,it is the result of dynamic condition,water vapor convergence and other causes.

APW的地理分布与实际降水量分布相反，其最大区域却为降水量最小区，受西风带影响，新疆APW模态主要表现全疆一致变化，分布稳定，与降水模态分布差异性大有显著不同，且近40年来无显著变化趋势，表明决定新疆降水差异的根本原因不在于水汽的多少，而是由降水产生的动力条件、水汽辐合和其它因素差异决定的。

We show that the solutions for the HARA utility are stable in the sense of weak convergence when the parameters vary in a suitable way.

当效用函数为HARA、指数和对数型时，我们分别得到了最优投资的显式解，并且证明了当HARA效用函数中的参数变化时所对应的最优策略在弱收敛意义下的稳定性。

Its convergence speed and performance during the stable period are also superior to those of De Campos's quasi-Newtonalgorithm.

一些简单的算法，如：最小均方算法在通常情况下非常稳定，但收敛速度较慢

Compared with Figure 6, one can see, as time progresses, the time Reverberation-Chamber fluctuations reduce the average electric field value, and gradually become stable, while the rectangular cavity resonance due to its role in the convergence very slow wave, volatile .

通过与图6比较，可以看出，随着时间的推进，混波室的时间平均电场值波动减小，逐渐趋于稳定，而矩形空腔由于其谐振作用，波形收敛很慢，波动很大。

The difference in oxygen absorption stable performances of different diesel fuels can be accurately and easily seen by the oxygen absorption stable index ...

本文提出的吸氧安定性因子能够准确反映出不同种类柴油在吸氧安定性能方面的差别，可用以评价柴油的吸氧安定性能。

By means of the moisture-absorption test in RH: 52% and the thermal stability test, it was dynamically demonstrated that the modification C is far more stable than the modifications A and B, and the amorphism is the least stable.

我们对国内外部分样品作了晶型、晶态的测定和稳定性加速试验，对各种结晶工艺所制得的样品作了稳定性优劣的判别，为提高产品质量提供了部分依据。

The teacher likes the honeymouthed little girl very much.

老师很喜欢这个嘴甜的小姑娘。

Mr. Notker Bien's interests are traveling, spending quality time with the family and long-distance-running.

诺特卡·柏恩先生热爱旅游，长跑，以及和家人一起共度美好时光。