Hybrid Deep Learning Model for Fake News Detection in Social Networks (Student Abstract)

Abstract

The proliferation of fake news has grown into a global concern with adverse socio-political and economical impact. In recent years, machine learning has emerged as a promising approach to the automation of detecting and tracking fake news at scale. Current state of the art in the identification of fake news is generally focused on semantic analysis of the text, resulting in promising performance in automated detection of fake news. However, fake news campaigns are also evolving in response to such new technologies by mimicking semantic features of genuine news, which can significantly affect the performance of fake news classifiers trained on contextually limited features. In this work, we propose a novel hybrid deep learning model for fake news detection that augments the semantic characteristics of the news with features extracted from the structure of the dissemination network. To this end, we first extend the LIAR dataset by integrating sentiment and affective features to the data, and then use a BERT-based model to obtain a representation of the text. Moreover, we propose a novel approach for fake news detection based on Graph Attention Networks to leverage the user-centric features and graph features of news residing social network in addition to the features extracted in the previous steps. Experimental evaluation of our approach shows classification accuracy of 97% on the Politifact dataset. We also examined the generalizability of our proposed model on the BuzzFeed dataset, resulting in an accuracy 89.50%.

Fighting Fire with Fire: The Dual Role of LLMs in Crafting and Detecting Elusive Disinformation

“…Earlier disinformation detectors use diverse approaches such as neural, hierarchical, ensemble- based, and decentralized techniques (Aslam et al, 2021;Upadhayay and Behzadan, 2022;Jayakody et al, 2022;Ali et al, 2022;. Some recent key examples include dEFEND (Shu et al, 2019) andFANG (Nguyen et al, 2020), which are based on CNNs and LSTMs.…”