Internet content information detection and filtration system
一种互联网内容安全检测过滤系统

In order to solve the problem of Internet content security,an Internet content information detection and filtration system was present.The system included four layers: network layer,information identification layer,information stream filtration layer and content detection layer.In the network layer,there were text information,audio information,image information and video information etc.The information in this layer could be captured by network sniffer,and then sent to the second layer.The second layer was information recognition layer,the function of this layer was to classify the information to text information,audio information,image information and video information etc.The third layer was information stream filter layer,the function of this layer was to fuse the information transferred form the nether layer by multi-characters,and filter the useful information,standardize the information format.The last layer was the core of the whole system.Its main function of this layer was to filter the information to find the special content information by pattern match algorithm.