一种基于内容的信息过滤改进模型

根据过滤系统的不同过滤目的，将信息过滤分为两类：(1)基于满足用户信息需求的用户兴趣过滤；(2)基于保障数据安全和社会安全的安全过滤．在详细分析了这两类信息过滤的异同之后，指出了安全过滤研究的特殊性及其主要研究内容．在现有用户兴趣过滤系统模型的基础上，提出了一个基于内容的信息过滤模型，并对模型中新增模块进行了试验．研究结果表明，新增模块能够很好地实现基于内容过滤系统的高精度，证明了该过滤模型具有一定的实用价值．

One Improved Content Based Information Filtering Model

According to different filtering aims, information (filtering) was divided into two kinds: one is User Filtering to satisfy user's information need; the other is Security Based Filtering to ensure data security and society security. Firstly, the similarities and differences between the two kinds of information filtering were analyzed. Then, the importance of Security Filtering and its main research content were discussed. After a brief survey on the information filtering systems at present and automatic filtering techniques used, a general model of content based security filtering was put forward. Experiments and analyses were given which demonstrate this model can achieve high accurate text filtering based on text's content.