论文标题
Phemeplus：丰富社交媒体谣言验证和外部证据
PHEMEPlus: Enriching Social Media Rumour Verification with External Evidence
论文作者
论文摘要
在社交媒体上工作的谣言验证利用帖子，传播和所涉及的用户的信号。基于Wikipedia的信息或值得信赖的新闻文章，无需考虑社交媒体环境，就可以根据Wikipedia的信息来识别和核实事实检查主张。但是，缺乏将社交媒体的信息与更广泛网络的外部证据相结合的工作。为了促进这一方向的研究，我们发布了一个新颖的数据集Phemeplus，Phemeplus是Pheme基准的扩展，该数据集包含社交媒体对话以及每个谣言的相关外部证据。我们证明了将这种证据纳入改进谣言验证模型的有效性。此外，作为证据收集的一部分，我们评估了各种查询公式的方式，以识别最有效的方法。
Work on social media rumour verification utilises signals from posts, their propagation and users involved. Other lines of work target identifying and fact-checking claims based on information from Wikipedia, or trustworthy news articles without considering social media context. However works combining the information from social media with external evidence from the wider web are lacking. To facilitate research in this direction, we release a novel dataset, PHEMEPlus, an extension of the PHEME benchmark, which contains social media conversations as well as relevant external evidence for each rumour. We demonstrate the effectiveness of incorporating such evidence in improving rumour verification models. Additionally, as part of the evidence collection, we evaluate various ways of query formulation to identify the most effective method.
