The rapid growth of social media content during the current pandemic provides useful tools for disseminating information which has also become a root for misinformation. Therefore, there is an urgent need for fact-checking and effective techniques for detecting misinformation in social media. In this work, we study the misinformation in the Arabic content of Twitter. We construct a large Arabic dataset related to COVID-19 misinformation and gold-annotate the tweets into two categories: misinformation or not. Then, we apply eight different traditional and deep machine learning models, with different features including word embeddings and word frequency. The word embedding models (\textsc{FastText} and word2vec) exploit more than two million Arabic tweets related to COVID-19. Experiments show that optimizing the area under the curve (AUC) improves the models' performance and the Extreme Gradient Boosting (XGBoost) presents the highest accuracy in detecting COVID-19 misinformation online.

该研究研究了推特阿拉伯语内容中的虚假信息，并使用传统和深度机器学习模型检测了 COVID-19 的虚假信息，结果表明优化 AUC 可以提高模型性能，而 XGBoost 可以最准确地检测 COVID-19 的虚假信息。

食用大蒜可预防COVID-19感染：在Twitter阿拉伯内容中检测虚假信息