Multimodal fake news detection remains challenging because deceptive posts exhibit heterogeneous manipulation patterns, while most existing methods still rely on a unified fusion strategy. This mismatch limits their ability to adapt to different evidence preferences across samples, encourages entanglement between deception cues and topical semantics, and weakens decision making when textual, visual, and cross-modal signals conflict. To address these issues, we propose TERN, a type-aware evidence reasoning network for multimodal fake news detection. TERN induces latent deception types from image-side multimodal features through prototype-based clustering, uses the induced assignments as structural priors for downstream veracity prediction, disentangles type-discriminative factors from semantic content, and performs type-conditioned hierarchical reasoning over text semantics, image authenticity, and cross-modal consistency. Experiments on MR2-Chinese, MR2-English, Weibo, and PHEME show that TERN achieves an average accuracy of 93.21% and an average F1 score of 91.09% while also improving Matthews correlation coefficient over representative multimodal baselines.
Zhang et al. (Mon,) studied this question.
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