极小值

当共混比为50/50时，B产生局部极小值现象。

A local minimum phenomenon for B is formed when the blending ratio is 50:50 .

BP网络有易陷入局部极小值的缺点。

The drawback of BP network lies in its local minimum .

异或运算下（2，n）分存规模的极小值

Minimum size of ( 2 , n ) data sharing scheme under XOR operation

在BP网络的训练过程，作者针对BP算法中局部极小值问题和收敛速度慢的问题，采用了改进的BP算法，取得良好的效果。

During the training of BP network .

用MATLAB实现进化策略算法&求特定方程的极小值

The Implementation of Evolution Strategy Arithmetic by MATLAB & For the MinimumValue of the Special Function

避免路径规划NA算法局部极小值的仿真试验

The Experiment of the Local Minimum Value of the Algorithm for Path Planning

然后将产品的图像模型与其CAD理论模型之间的残差平方和定义为优化目标函数，采用黄金分割方法搜索其极小值；

Then deviation square sum between product 's image model and CAD model is defined as optimized object function .

（M，N）-图类的Wiener指标的极小值问题

Minimum Value of the Wiener Index for ( M , N ) - graph

针对BP神经网络容易陷入局极小值，收敛速度慢的问题，本文提出了基于混合BP神经网络的分类模型，并通过实验将此模型应用于复杂样本的分类问题中。

This paper proposed that hybrid BP neural network model and applied this model in complex sample classification .

用退偏实验得到的数据表明p波的退偏极小值点对应的入射角就是该材料的布儒斯特角。

With the data of the depolarization experiment we find that the depolarization weak extremum of p-wave is at the Brewster angle of its material .

寿命服从极小值分布的MIS的软件可靠性分析

Reliability Analysis Made on MIS Software with an Operation Life Submitting to Minimum Distribution

对MR曲线的截距变化曲线进行类似于坐标旋转的校正，使对应信号初至的拐点成为曲线的极小值，有助于信号初至的自动检测。

In order to detect arrival time of signals automatically , the intercept curve was corrected using a method that similarly to coordinate rotation .

，如果我只观察平行于x轴的切面，那这应该是一个极小值点。

If I look only at the slice parallel to the x-axis then maybe I am going through the minimum .

BP网络能较好地解决贮灰坝监测系统的预报问题，但容易陷入局部极小值；

BP network can solve the prediction problem of monitoring system , but is apt to plunge into local minimum .

将混沌优化算法与BP算法相结合，使模糊神经网络克服了容易陷入局部极小值的缺点。

The combination of chaos and BP learning method make fuzzy neural network escape from getting in local minimization value .

进一步得出了声压反射系数模r（f）极小值与涂层声速和厚度之间的关系。

The relationship between the minimum of the mode of ultrasonic reflection coefficient , ultrasonic velocity and coating depth is acquired .

因此，克服了传统的BP学习算法过程中难以跳出局部极小值与收敛速度慢的缺点。

So it overcomes properties of traditional BP algorithm , such as falling easily into local optimal solution and slower convergence speed .

采用GA作为训练算法，解决ANN局部极小值问题；

In the thesis GA is adopted as the training algorithm to solve the ANN local minimum problem .

对于传统BP算法存在的收敛速度慢和易陷入局部极小值问题，人们提出了径向基函数网络。

People put forward radial basis function networks considering the conventional BP algorithm problems of slow convergence speed and easily getting into local dinky value .

由于标准的BP算法在训练系统网络时，不仅收敛速度慢，而且其最优解很容易陷入局部极小值，这就在一定程度上限制了鉴定系统的稳定性和准确率。

Because the standard BP algorithm not only has a low convergence rate , it is more easily trapped in local minimum during its training .

先对传统的BP人工神经网络进行了分析，针对其收敛速度慢，存在局部极小值的缺点提出了一种改进后的BP人工神将网络。

An improved BP neural network is proposed for the purpose of overcoming the slow convergence and existence of local minimum in conventional BP neural network .

3基于非均匀B样条曲线插值数据极大值、极小值点，提出了经验模态分解信号包络拟合的新方法。

Data extending method for handling the end effects of EMD is effective . 3 A new method of envelope fitting for empirical mode decomposing databased on non-uniform B-spline curve is developed .

基于极大极小值原理的UPFC控制器设计

Design of UPFC Damping Controller Based on Minimax Principle

为克服BP算法收敛速度慢，易陷入局部极小值等的缺点，提高BP预测精度等性能，提出了变共轭梯度法（VCG）。

To improve the prediction accuracy of BP network , the variable conjugate gradient ( VCG ) algorithm was proposed .

而在孔距∧确定的情况下，光子晶体光纤的波导色散的零点、极小值点位置与f在所讨论的波长范围内存在线性关系。

When the pitch Λ is fixed , the zero and the extremum positions of the waveguide dispersion are linear with f in prefer wavelength range .

但是在训练过程中BP神经网络的寻优不具有唯一性，容易陷入局部极小值，从而可能造成误判。

But the optimization of BP neural network is not unique ; it is susceptible to fall into the local minimum , which maybe results in miscarriage of justice .

但是传统的BP神经网络由于本身存在收敛速度慢，人工神经网络易陷入局部极小值的原因，使得其在应用方面具有一定的局限性。

Given the traditional BP neural net has problems that the convergence speed is slowly and the net maybe trapped into local minimum , it is limited in applications .

在Needle方法陷入局部极小值点时，可以运用增加总厚度的方法来使优化过程不断地进行下去。一般采用增加薄膜中某一层的厚度。

When the process of Needle optimization is trapped in a local minimum , it is pulled out by increasing the thickness of the current structure .

另外，用Lagrange乘数法求出的解不一定是条件极值问题的极小值解。

Furthermore , the solutions given by the Lagrange multiplier method are not necessarily minimal solutions about the conditional extremum problem .

ESR线宽在顺磁态随温度升高而线性增大，在居里温度附近呈现了极小值。

The resonance linewidth of ESR decreases linearly with decreasing temperature in paramagnetic state and shows a minimum around Curie temperature .