It uses pattern matching method and runs under network environment 在实现上,该系统采用了基于网络的模式匹配方法。
Pattern matching method 图案选配法
Secondly , the author plans and completes a network ids which adopt the protocol analysis and pattern match method . ip fragment reassembly and tcp stream assembling is analyzed and completed , decoding the http request which coding by the unicode to the ascii 作者分析和实现对网络数据包的捕获、对ip协议解码和tcp协议解码,正确的实现了ip分片重组和tcp流还原,将unicode编码的http请求解码为ascii编码。
The system adds the image recognition function on warning signal lights except the traditional video monitoring , remote control and collecting alert signals function etc . the methods for alert signal recognition include gray histogram arithmetic , pattern matching method and hsi system . the gray histogram arithmetic is the best method for this system 除了实现传统视频监控系统所具有的监视、远程控制、告警信号采集等功能外,增加了基于颜色特征的告警信号灯图像识别功能。确定了三种可用于基于颜色特征的告警信号灯识别的方法:灰度直方图法,模板匹配法和hsi系统法。
The wireless sensor networks ( wsns ) are the hotspot research of current sensor technology . much attention are focused in this paper on the design of the hardware architecture for wireless sensor network node , the development of the sensor node ‘ s hardware and software and its structural health monitoring application system . a structural health monitoring system based on the developed node , named as cute1 , was built by the pattern matching method 无线传感网络是当前国内外传感器技术领域的热点研究课题,本文着重研究了针对无线传感网络节点的软硬件设计,成功实现了智能无线传感网络节点“ cute1 ”的设计,并运用该无线传感节点建立了针对结构健康监测的应用系统,利用模式匹配的方法实现了基于无线传感网络的结构紧固件失效的实时监测。
Based on the analysis of above drawbacks , this paper proposes frequent access pattern tree algorithm ( fapt ) . this algorithm includes two steps : access pattern tree method , through the pattern matching method it saves user ' s visit sequences with tree ; pruning method , it uses frequent degree to prune access pattern tree which is under the frequent degree 在分析以上不足的基础上,提出了频繁访问模式树( fapt )算法,该算法包括以下两个步骤:访问模式树的生成,通过模式匹配的方法将用户访问序列以树形结构来存储;修剪的策略,利用频繁度对访问模式树进行修剪,修剪掉其中低于频繁度的节点。
In feature matching , a dot pattern matching method is developed , which combine subschema matching method for solving rotations and scale changes problems , and employ variable bounding box to solve translations problem . then the problems of arbitrary translations , rotations , and scale changes in feature matching have been well 特征匹配算法采用了基于点模式的匹配方法,并结合基于结构的匹配方法解决图像的旋转、平移问题,同时采用可变限界盒方法解决图像的变形问题,使得指纹图像匹配中因图像旋转、平移、形变等带来的问题得到了较好的解决。