基于多特征的垃圾微博检测方法

摘要

With the rapid development of micro-blog,spam detection and filtering is faced with enormous challenges.It is significant to realize realtime and accurate detection of spam,which is important to improve user experience and the sustainable development of micro-blog platform.In this paper,a sparn detection method based on multi-features of microblog is proposed.The main procedures are:first,the features of user and content are extracted.Second,LDA is applied to extract latent topic features.Finally,the features above are fused and a proper classifier is trained based on SVM.Experimental results show that the precision and F 1 get increased while adopting the method proposed in this paper compared to the pervious methods.%随着微博平台的快速发展,垃圾信息检测与过滤也面临着巨大的考验,实时精确地识别垃圾信息对于提高用户的体验以及微博平台的可持续发展意义重大.本文根据新浪微博的真实数据,提出了一种基于多特征的垃圾微博检测方法.首先,提取微博的显式特征(用户特征、内容特征);然后利用文档主题生成模型(LDA)提取微博中的隐含主题特征;最后根据所提取的微博特征利用支持向量机(SVM)构建分类器.实验结果表明,该方法相比于现有方法在准确率和F1值方面都有一定的提升.