Online Social Network (OSN) has become a hotbed of fake news due to the low cost of information dissemination. Although the existing methods have made many attempts in news content and propagation structure, the detection of fake news is still facing two challenges: one is how to mine the unique key features and evolution patterns, and the other is how to tackle the problem of small samples to build the high-performance model. Different from popular methods which take full advantage of the propagation topology structure, in this paper, we propose a novel framework for fake news detection from perspectives of semantic, emotion and data enhancement, which excavates the emotional evolution patterns of news participants during the propagation process, and a dual deep interaction channel network of semantic and emotion is designed to obtain a more comprehensive and fine-grained news representation with the consideration of comments. Meanwhile, the framework introduces a data enhancement module to obtain more labeled data with high quality based on confidence which further improves the performance of the classification model. Experiments show that the proposed approach outperforms the state-of-the-art methods.
翻译:社交网络上的假新闻已成为信息传播的温床,由于信息传播的低成本,假新闻问题愈发严重。尽管现有的方法在新闻内容和传播结构方面进行了许多尝试,但假新闻的检测仍面临两个挑战:其一是如何挖掘关键特征和演化模式,其二是如何解决小样本问题以建立高性能模型。与利用传播拓扑结构的普遍方法不同,本文从语义、情感和数据增强的角度提出了一个新颖框架,挖掘了新闻参与者在传播过程中的情感演化模式,并设计了涉及评论的语义和情感的双向深度交互通道网络,以获得更为全面和精细的新闻表示。同时,该框架引入数据增强模块,基于置信度获取更高质量的标注数据,进一步提高了分类模型的性能。实验表明,所提出的方法优于现有最先进方法。