Abstract-This paper studies the problem of automatic de tection of false rumors on Sina Weibo, the popular Chinese mi croblogging social network. Tr aditional feature-based approaches extract features from the false rumor message, its author, as well as the statistics of its responses to form a flat feature vector. This ignores the propagation structure of the messages and has not achieved very good results. We propose a graph-kernel based hybrid SVM classifier which captures the high-order propagation patterns in addition to semantic features such as topics and sentiments. The new model achieves a classification accuracy of 91.3% on randomly selected Weibo dataset, significantly higher than state-of-the-art approaches. Moreover, our approach can be applied at the early stage of rumor propagation and is 88% confident in detecting an average false rumor just 24 hours after the initial broadcast. 1
REF extracted features from message propagation trees.
False rumors detection on Sina Weibo by propagation structures
2015 IEEE 31st International Conference on Data Engineering
2015 IEEE 31st International Conference on Data Engineering
Computer Science