Research on the Implementation of Web Content Filtering

This paper presents the technical principle of Web content filtering and the implementing method on the fire wall and designs a content filtering model to show the advantage of the implementing on the fire wall. This model combines the URL filtering and text keywords filtering technic, discusses how to improve the classical filtering algorithm and the parameter value. This technic improves the filtering speed and doesn't deteriorate the filtering precision. Finally, it introduces how to implement it on the fire wall.