Abstract
Multi-modal Fake News Detection (MFND), which aims to identify fake news by integrating texts and attached images, has attracted considerable attention in recent years. Existing works on MNFD have made a great progress by enhancing text-only fake news detection with visual information. However, most prior efforts focus on conducting multi-modal fusion yet largely ignore the significance of multi-modal representation, which is insufficient to explore various semantic interactions between images and texts. In this paper, we propose an instance-guided multi-modal graph fusion method by jointly modeling the intra- and inter-modality relationships between image and text. Specifically, considering that the content of multi-media news is always narrated around instances, we extract instance-level features of images to represent visual contents. After that, we construct a unified graph to enhance the multi-modal representation for improving fake news detection. In addition, we utilize multiple fusion layers to learn the graph embeddings, which is able to capture the intra-modality relationship within each modality and the inter-modality relationship between textual and visual instances simultaneously. Finally, we devise a fake news detector with hierarchical multi-modal representations to identify the fake news. Experimentation on two benchmark datasets demonstrates the superiority of our model.
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Notes
- 1.
If no noun is detected for a sentence, all textual and visual nodes are connected with fully connection.
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Acknowledgement
The authors would like to thank the anonymous reviewers for their constructive comments. This research was supported by the National Natural Science Foundation of China (No. 61976247).
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Wang, J., Yang, Y., Liu, K., Xie, P., Liu, X. (2022). Instance-Guided Multi-modal Fake News Detection with Dynamic Intra- and Inter-modality Fusion. In: Gama, J., Li, T., Yu, Y., Chen, E., Zheng, Y., Teng, F. (eds) Advances in Knowledge Discovery and Data Mining. PAKDD 2022. Lecture Notes in Computer Science(), vol 13280. Springer, Cham. https://doi.org/10.1007/978-3-031-05933-9_40
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DOI: https://doi.org/10.1007/978-3-031-05933-9_40
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