选择函数

When this method is used to normalize data, thrice weight function is always used.

对于权函数的选择一直以来都是采用三次权函数。

To solve the problem, outbreeding strategy and dynamic fitness function strategy: outbreed and timely change standard of evaluating individuals were proposed to increase diversity and select excellent individuals; The experiments showed that the performance of traditional GEP is effectively improved by the combination of OBS and DFFS. The average fitness for the best individual is increased by 7%~14%, the maximal fitness is increased by over 7%, and the success rate is increased by over 30%.

提出了远缘繁殖策略和动态适应度函数策略，远亲繁殖并及时变换评估个体的标准，增加多样性并有利于选择优质个体；实验表明，将远缘繁殖和动态适应度函数策略结合，有效地改善了传统GEP的性能，进化代数平均下降达10%，平均最高适应度值提高7%~14%，最高适应度提高达7%以上，进化的成功率提高达30%以上。

An appropriate selection of basis function directly influences the learning performance of a policy iteration method during the value function approximation.

在策略迭代结强化学习方法的值函数逼近过程中，基函数的合理选择直接影响方法的性能。

By means of this connexion, we give an algorithm for parallel computing all the roots of the polynomial expression equation.

它对信号进行时频变换，这一点在我们选择母波函数作为激发函数时可以得到进一步的验证。

An adaptive learning procedure for constructing and training networks is proposed, based on the adaptive projective algorithm.

进一步地研究了径向基函数网络的逼近性能、径向基函数中心的选择及构造和训练网络的学习算法。

To improve classification reliability, aGaussian Radial Basis Function is chosen on the Spectral Histogram Representation and the Support Vector Machines is used as classifying function.

为了保证分类的可靠性，选择高斯径向基函数进行谱直方图表示，采用支持向量机作为分类函数。

This paper is concerned with two problems: First, a formula is derived to estimate the error of system identification from the autoeorrelative function of stationary random disturbances and that of pseudo-random sequences. It can be used to select the type of pseudo-random sequences to be used for quick identification with a given error.

本文讨论了两个问题：(1)导出了平稳随机干扰的自相关函数、伪随机序列的自相关函数和系统脉冲响应辨识误差之间的定量关系式，可用来选择伪随机序列和估计试验误差。

Chapter 2 is devoted to study of exact solutions of the nonlinear evolution equations. Using solutions of a Bernoulli equation instead of tanh in tanh-function method we find some more general solutions of the KdV-Burgers-Kuramoto equation , and by using the nonlinear telegraph equation we show that there are many different choices on its balancing number m and the power n of the nonlinear term in Bernoulli equation by which we can recover the previously known solutions and also can derive new square root type solitary wave solutions. Exact solitary wave solutions for a surface wave equation are obtained by means of the homogeneous balance method. We also present an approach for constructing the solitary wave solutions and non-solitary wave solutions of the nonlinear evolution equations by using the homogeneous balance method directly, which is also used to find the steady state solutions, solitary wave solutions and the non-solitary wave solutions of the 2+1 dimensional dispersive long wave equations. The soliton-like solutions of the BLMP equation and the 2+1 dimensional breaking soliton equation are found by use of the symbolic-computation-based Method.

第二章中研究了非线性发展方程的精确解：用双曲正切函数法中的双曲正切函数换为Bernoulli方程的解的方法而给出KdV-Burgers-Kuramoto方程的精确解并用非线性电波方程为例说明了平衡数m和Bernoulli方程中非线性项的次数n有着多种选择的可能，它不但使我们能找到已知解而且也能找出新的根式孤立波解；用齐次平衡法给出一个曲面波方程的精确孤立波解，并提出直接用齐次平衡法寻找非线性发展方程的孤立波解、非孤立波解的方法，作为应用给出2+1维色散长波方程组等的定态解、孤立波解、非孤立波解等；用Symbolic-computation-basedMethod获得BLMP方程和2+1维破裂孤子方程的类孤子解；提出sine-Gordon型方程的直接求解方法，并获得sine-Gordon方程、双sine-Gordon方程、sinh-Gordon方程、MKdV-sine-Gordon方程和Born-Infeld方程等的精确孤立波解。

It has been proven that the textural information can be used to classification by means of test.

本文首先分析了遥感影像分类方法和纹理提取方法的研究现状，接着对地统计学的基本原理进行了论述，在这一理论的基础上，对变差函数应用于遥感影像的纹理描述和提取进行了论证和实验说明；并就一些具体应用问题如计算窗口大小、计算方向和计算步长的选择等问题进行了讨论，提出了一种自适应的确定纹理计算窗口大小的方法；同时，在现有算法的基础上提出了一种新的纹理计算方法――加权变差函数法。

By a linear transformation of coordinates,an explicit construction for functions satisfying the strict avalanche criterion or being .

讨论了与选择逻辑函数线性等价意义下满足严格雪崩准则或具有相关免疫性的逻辑函数构造问题。

In her eyes, because that is the doorway toher heart * the place where love resides.

女人的漂亮必須從她的眼睛中去看，因為那是她心靈的窗戶和愛居住的地方

I will send some postcards to you.

我会向你发送一些明信片。