神经网络

In order to improve the convergence ability and approaching effect, the study algorithm of WNN is ameliorated by local study policy.

为提高网络的收敛能力和逼近效果，应用局部学习策略改进了小波神经网络的学习算法。

On the basis of the orthogonal experimental design technique, I redefine the crossover operator, an important operator used in a genetic algorithm.

神经网络的训练过程和网络结构的寻优过程都是十分耗费时间的，为了寻找解决这个难题的方法，我尝试利用DSP/PC机组成的典型的主从式系统来实现自己提出的网络设计方法。

Orthogonal least square is a widely used approach to training networks, so it also can be applied to wavelet networks.

正交最小二乘法是一种常用的前向神经网络训练方法，因此可以用正交最小二乘法训练小波网络。

On the basis of the data obtained from the cam-type plastometer, four prediction models including the BP, Elman, RBF and GRNN neural network prediction models were established, which corresponded to the relationship between the deformation stress of nickel-chrome steel with chemistry elements, temperature, strain rate and deformation strain of the steel respectively. A comparative analysis for the prediction accuracy of the four models was obtained.

以凸轮式高速形变试验机进行的热模拟压缩实验得到的实验数据为基础，建立了热轧铬镍钢的变形阻力与其化学成分、变形温度、变形速度及变形程度对应关系的BP、Elman、RBF和GRNN 4种神经网络预测模型；并对4种网络的训练过程和预测精度进行比较分析。

Basically,an optimal nonlinear control law based on an artificial neural network is presented,on the basis of the optimum trajectory from perilune to lunar surface in terms of Pontryagin's maximum principle according to the terminal boundary conditions and performance index.

其主要内容是，根据终端着陆条件和性能指标，以由庞氏极大值原理得出从近月点到月面的最优着陆轨迹为基础，给出一种基于人工神经元网络的非线性最优控制策略，使被控系统能通过神经网络对非线性的映射能力实现某种最优的非线性控制。

Its aim is to improve the generalization ability of networks, and it trains a network with the purpose of obtaining the weights corresponding with the maximum posterior probability.

该算法是一种新型前馈神经网络训练算法，它以提高网络的泛化性能为主旨，其训练目标在于获取对应于后验分布最大值的权值向量。

In order to improve the BP Arithmetic's study rate, we do some improvement, and get more accurate results. Then we introduce the improved GA which used to improve the BP Arithmetic. Another DM technology--Fuzzy theory which will be used in the Pre-prepare of the load and relative data.

接着用改进后的遗传算法结合改进后的BP算法来改善神经网络的局部收敛性，同时采用了模糊理论的知识，对各种数据进行归一化和修正处理，提高了网络的预测精度和学习效率。

A principal focus of the work resides in the use of neural networks to solve the mechanical optimum design.

Hopfield网络是一种典型的全互连神经网络模型。

From the principle of projective geometry, a group of corresponding image points between original and rectified stereo pairs are determined, These correspondent points then used as samples to train a BP network.

该方法巧妙地运用投影成像原理，构造出一组立体图对在校正前后的对应点，将其作为样本来训练BP神经网络，从而将整个校正关系存储到网络中。

This paper describes a new approach to the automatic radioisotope identification problem based on the use of OLAM network.

摘 要：介绍了一种重要的人工神经网络——最优线性联想网络，并将其应用在X射线谱分析中，成功地克服了传统解谱方法速度慢、不能准确分析含有重峰的复杂X射线谱的缺点。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。