Integrating Graph Learning and Multimodal Fusion for Detecting Misinformation on Social Platforms

Liliana Martirano

Keywords: Multimodal Fake News Detection, Deep Fusion Methods, Social Networks, Heterogeneous Information Networks

Abstract:

Nowadays, modern social networks allow the rapid sharing of news worldwide. Alas, these news are frequently unverified or shared on the basis of users' opinions or beliefs, which can cause confusion widespread, public trust erosion, and contribution to social and political instability. In this complex and evolving scenario, the early detection of fake news has become a critical issue. Multimodal approaches, which integrate various data types such as text, images, audio, video, and network structures, have shown promising results in addressing such a problem. The literature presents different fusion strategies, but there is no consensus on which one is the most effective.
In this work, we propose M3DUSA, a modular multi-modal framework able to combine different modalities to effectively detect malicious and misleading content. By using deep attention-based architectures, our framework discovers informative latent representations that can be combined using different early or late fusion strategies.
Experiments conducted on a real-world dataset demonstrate the effectiveness of our solution. The achieved results highlight that while both early and late fusion approaches can effectively exploit the complementary contributions from different modalities, they can exhibit distinct advantages depending on the desired outcomes.

Submission Number: 4