【摘要】 针对校园网络信息环境及其应用的特点,设计并实现了一个中文Web页面信息过滤与中文电子邮件监控系统,给出了系统的组成模块、算法模型和关键技术,分析了数据报文捕获技术的核心—WinPcap的体系结构,给出了基于Windows的实现方法,提出了一种改进的向量空间模型。试验表明,该模型对中文信息过滤是有效及可行的。更多还原

【Abstract】 Aiming at the information conditions and the applications in campus network, a system for Chinese Web information filter and E-mail monitor is designed and implemented. The composing modules, arithmetic model and key technique of the system are described. The architecture of WinPcap-the kernel of datagram capturing technique is analysed, and the approaches to realize are showed. A mending vector space model, brought forward in the filtering system, is shown effective and doable by the experiments.更多还原