【摘要】 随着互联网上信息的迅速增长,网络安全日益引起人们的关注。提供一定手段管理网络用户,尤其是青少年用户具有十分重要的意义。本文利用向量空间模型,Rocchio方法生成类别过滤模板,采用余弦算法比较待过滤文档和类别模板的相似度,并提出一种利用反馈动态修改模板的反馈机制。实验表明本文提出的反馈方法是切实可行的。更多还原

【Abstract】 Network security is increasingly important with the rapid growth of the information on the web,so it is very significant to provide a certain method to administer network users,especially younger users.This paper presents an approach that of generating category filtering templates with a vector space model,the method of Rocchio,employs cosine algorithm to compute the similarity between documents for filtering and category filtering templates,and proposes a dynamic feedback mechanism to amend the category templates.Experiment shows that the feedback mechanism is practicable.更多还原