查询词典 network analysis

With the development of network technique and the prevalence of network, network teaching is now a hotspot.

随着网络技术的发展和网络的普及，网络教学已经成为当前的一个教育热点。

Hierarchizing and decomposing the triangular incidence matrix, topology information of network is extracted, which is suitable for network topology identification of common tree structure, even suitable for network topology identification of the structure with parallel branch.

这种方法适用于实际应用中常见的树状结构拓扑的辨识，甚至适用于带并联支路的网络拓扑辨识。

The experimental results indicate that the LMBP neural network has higher classification rate, more rapidly converge velocity by comparing with other improved BP algorithm and the Radial Basis Function neural network. Through the experiments of recognizing the sonar image polluted with Gaussian noise, it is proved that the LMBP neural network has good stability and better anti-noise performance.

通过与标准BP算法和几种常用改进型BP神经网络以及径向基函数网络比较，验证了用LMBP神经网络作为声纳图像识别系统中的分类器，能够提高图像的识别率，加快网络的收敛速度，通过对受不同程度高斯白噪声污染的声纳图象的识别，验证了其性能稳定，具有较好的抗噪声性能。

In order to measure the passive network's conduction automatically, a network conduction instrumentation based on FPGA technology was designed and implemented according to the design principle of Virtual Instrument. System adopted FPGA technology building a digital flat-top to imitatively produce the high quality sine signal. Under the control of C8051MCU, measurement, calculation and display of the port network's conduction were automatic implementation. Furthermore, the system has the function of frequency step measurement.

摘 要：为了实现对无源端口网络的导纳进行自动测量，根据虚拟仪器设计思想，设计实现了基于FPGA的网络导纳测量仪，系统以FPGA作为数字平台模拟产生优质的正弦信号，在单片机C8051的控制和处理下，自动实现端口网络导纳值的测量、计算、显示，同时具有频率步进测量功能。

Due to the inherited heterogeneity, complexity, openness and dynamic natures of the Internet and the fast evolution of networks and applications, throughout understandings of network behaviors are needed imperiously, for monitoring, managing and modeling the network as a whole, and for guaranteeing network quality of service, especially the end-to-end QoS.

由于互联网固有的异构性、复杂性、开放性和动态性等特点，以及网络及其应用的飞速发展，人们迫切需要对网络行为有透彻的理解，可以对网络整体进行监测管理和建模，保障服务质量，特别是端到端服务质量。

In new network justice black on June 26 report (Chen Zhengming of reporter Zhang Yin's reporter) the form of network bilk is increasing now, justice black appeared a few days ago code of user of broken solution of program of one cheater use hacker, next imposture lends money to QQ good friend of the victim,"The friend sends a short message to want 4000 yuan of urgent need in QQ, looking is him really in video, then I send money ", bell lady did not think of this is new fraud of a network however.

中新网义乌6月26日电(记者张茵通讯员陈正明)现在网络诈骗的形式越来越多，日前义乌出现一骗子使用黑客程序破解用户密码，然后冒名顶替向事主的QQ好友借钱，"朋友在QQ里发来短信要4000元急用，看看视频里的确是本人，于是我就寄钱了"，钟女士没想到这却是一个网络新骗局。

In fact, many hidden in the dark of the network system capabilities, system optimization, many of the trick can not be touched in many cases is improper because they slow down the network functionality of the system boot speed; To this end, we as long as these improper masked network function, we will be able to speed for the system coupled with!

事实上，许多藏在系统暗处的网络设置功能，是许多系统优化绝招无法触及的，很多情况下就是因为这些设置不当的网络功能拖慢了系统启动速度；为此，我们只要将这些不当的网络功能屏蔽掉，就一定能够为系统提速再加一鞭！

In addition, because of the inhere defects of the IP network, a lot of devices and bandwidth of the network can not be used sufficiently. That is one of the main reasons for network congestion.

另外，由于传统IP网络的固有缺点，使许多网络带宽和网络设备没有得到充分的利用，这也是造成网络拥塞的一个主要原因。

The effects of the initial values and the network approximation error using neural network model composed of feedforward neural net and delayed output feedback in the approximation of NARMAX system are studied, and a conclusion is drawn that under some weak conditions the output of the network model has little difference from that of the actual system.

研究了用带有延迟环节的前馈网组成的网络模型逼近NARMAX系统时网络逼近误差及运行初始误差对网络模型输出的影响，指出在一些弱的条件下网络模型输出与实际系统输出间相差不大。

Along with the development of computer network, network safe problem especially interior network shows increasingly more important.

随着计算机网络的发展，网络安全问题尤其是网络内部的安全日益显的更加重要。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。