Application Research Of Information Filtering Technique In Education Network

With the application and the development of Internet and the accomplishment of the basic construction of educational web, more and more universities have established their LAN which is accessible to Internet. The establishment of campus net have been promoting the exchange of different colleges and universities and the share of network resources, however, when the net provides great convenience to humans, it also brought many harms, for example, plenty of violence, eroticism, drugs, reactions, evil things, gambling and virus abound in internet. The Ministry of Education, the Ministry of Information Industry and the Public Security Ministry are all greatly concerned with the adolescent's access to the Internet, who advocate "green on line" engineering.The so-called information filtering technique is the censorship management and the technology of controlling internet visit through IP filtering, URL filtering, keyword filtering, image filtering, template filtering, intelligence filter etc. Currently, the technology of information filter is one of the main methods for the public security department to supervise and censor all units such as government, schools, and Internet bars which have access to the Internet. The information filtering technique concerns the national security and the social public security, to which the international community has already unanimously agreed, and the information filters the technique is also the key point to promote the Internet development, the electronics governmental affairs and electronic commerce. Information filtering technique has developed quickly in the European countries and America, where the IT technique start more early, and this technique has also developed in our country but it seldom aims at its application in the educational net. The information filtering the technique to eradicate completely the information safety of the tremendous to build up campus net, the network environment of the decontamination campus, on the biggest degree the safe of network suffer from.This text filter system to current network information in the existent key...