网络

Analyzing the distribution and heterogeneity of the network information,it is proposed that Agent-based distributed information retrieval system.

随着计算机网络和信息技术的发展，存储在各种信息系统中的信息资源通过网络互连，形成了巨大的网络信息空间。

The main objective of this project is to research and develop a novel and high efficient video codec framework based on wavelet techniques, especially to address the heterogeneousness of video networks, the fluctuation of transmission bandwidth and the diversity of video-stream receivers. The system will have some basic characteristics of the next video coding standard, such as high compression efficiency, high scalability and high error resiliency. This project will provide a software prototype of wavelet video codec with full scalability, construct a verification platform for wavelet video on demand service, and furthermore, design some VLSI IP cores of the key module in the codec system

本项目研究的主要目的就是着眼于下一代视频编解码标准的基本特征（高效压缩，高可伸缩，高容错），以小波技术为核心构建新型高效的视频编解码系统；特别针对当前视频传输网络的异构性，网络带宽的波动性以及用户视频接收终端的多样性，实现一个码流高度可伸缩同时兼顾压缩效率的小波视频编解码软件原型，并且构建基于异构IP网络的小波视频服务的技术验证平台；进一步还将基于VLSI技术，对小波视频编解码系统的关键模块进行IP核设计

The results are listed as follows:(1) In peneplain with plenty water-resource, hexagonal spatial structure of urban system can be formed. Due to differential competed function of central places, the hexagonal system is distorted. The result is that the area covered is decr eased and the girth is unchanged——but every border is usually unequal;(2) A pattern of pentagonal system evolves from hexagonal system controlled by a river;(3) A pattern of quadrilateral develops from hexagonal system under two parallel rivers;(4) The equal distance distribution of central places in narrow geographic space has its special reasons. The results are very important for understanding urban's formation and development and urban plan in Huang-Huai-Hai plain.

本文通过自然地理因素中水文、地形这两个重要要素对城镇体系空间结构形成的影响，分析了华北平原区在不同要素影响下的城镇体系空间结构样式：①在水源充足的准"均质"河北冲积平原上，基本满足六边形形成条件，但由于周边中心地发展竞争力不同，故使得正六边形发生畸变——覆盖面积减小而周长却保持不变；②构建了在一条河流影响下的六边形网络结构朝五边形网络演变的模型；③构建了在平行状河流作用下六边形网络向四边形网络演替的模式；④指出了在水源充足的狭长地理空间，城镇体系空间结构发育成等间距的现象与原因。

We begin with an introduction of the research background, the difference between traditional network management and security-oriented network management, and the contributions of this paper. Then we present the structure and the principles of the SIMP: we put forward to a functional and hierarch model based on JMX specification and Struts technology And a JMX-based network management model.

本文首先介绍了课题的背景、网络安全管理相对于网络管理的特点和本文的研究内容，针对传统网络管理的不足，提出了安全集中管理系统的总体结构、组成及工作原理：安全集中管理平台的体系结构采用JMX技术作为系统的集成总线，将各管理功能模块作为JMX管理构件，实现了系统的组件化、模块化的开发；层次结构采用了基于Struts的MVC架构模式，底层数据库采用了对象关系映射技术，提高了系统的可维护性和可扩展性。

Hierarchical routing algorithms as well as the initialization and dynamic control of the network are provided.

其中包括路由算法、窄带单信道网络的初始化和动态控制及扩频通信网络的两种网络协议。

Boltzmannn computer network is Hinton and others in 1985 will be simulated annealing primer access to the neural network, the n...

Boltzmannn机网络是Hinton等人在1985年将模拟退火算法引入到神经网络中，提出的，简称BM网络。

Com insiders also believe that users in the choice of a social network, basically not choose the second, or it has spent a lot of social network after the stop in a social network, the "social network of more homogeneous products, Almost function, chat friends, music videos and so on, and the involvement of different people."

com内部人士也认为，用户在选择一个社交网之后，基本上不会选择第二个，或者它用了很多社交网络之后会停在一个社交网络上，"社交网络产品同质性比较大，功能差不多，聊天交友，音乐视频等，而人群方面的切入不同。"

The concept of zero-path tracking in homotopy is generalized into minimum-path tracking and a new method for the training of multi-layer perceptron is thus put forward──the homotopic BP algorithm. An analysis is made on the convergence property of the proposed method.

采用同伦BP算法进行多层前向网络的训练高小榕，杨福生（清华大学电机及应用电子工程系北京100084）摘要本文把同伦论中零点路径跟踪的概念推广到多层前向网络能量函数极小点路径的跟踪，从而提出多层前向网络一种新的训练方法──同伦BP算法（包括教师同伦和输入同伦），并且分析了其收敛性质。

For network security, people will naturally think of offensive and defensive – of the behavior of hackers showdown, while the network of step with the development of safe behavior gradually become a popular focus of attention, while the so-called hackers – using intelligence to challenge the limits of the crowd, as the protagonist and the interpretation of the Internet revolution, but most of the so-called hacker was just that the sense of the word hacker, but rather the punishment not the impulsive and play, hackers, and perhaps the same as Honker, or do not, it is also the behavioral characteristics of attitudes and ideas!

对于网络安全，人们就自然联想到攻防–黑客的行为对决，而随网络大步发展，安全行为逐渐成为热门关注的焦点，而所谓的黑客-用智力去挑战极限的人群，作为主角而演绎网络革命，但大部分的所谓的黑客只是现实意义上的骇客而已，而并非冲动性的惩罚和玩耍，黑客和红客或许一样，那同样是态度和观念的行为特征！

By taking temperature and horizontal coordinates as network input, and the rib-elevation as network output, the neural network model of rib-elevation was established.

此外，以气温、坐标和横坐标为网络输入，拱肋标高为网络输出，建立了拱肋标高的人工神经网络模型。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。