Consistency-aware Fake Videos Detection on Short Video Platforms

• URL: http://arxiv.org/abs/2504.21495v1
• Date: Wed, 30 Apr 2025 10:26:04 GMT
• Title: Consistency-aware Fake Videos Detection on Short Video Platforms
• Authors: Junxi Wang, Jize liu, Na Zhang, Yaxiong Wang,
• Abstract summary: This paper focuses on detecting fake news on the short video platforms.<n>Existing approaches typically combine raw video data with metadata inputs before applying a classification layer.<n>Motivated by this insight, we propose a novel detection paradigm that explicitly identifies and leverages cross-modal contradictions.
• Score: 4.291448222735821
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: This paper focuses to detect the fake news on the short video platforms. While significant research efforts have been devoted to this task with notable progress in recent years, current detection accuracy remains suboptimal due to the rapid evolution of content manipulation and generation technologies. Existing approaches typically employ a cross-modal fusion strategy that directly combines raw video data with metadata inputs before applying a classification layer. However, our empirical observations reveal a critical oversight: manipulated content frequently exhibits inter-modal inconsistencies that could serve as valuable discriminative features, yet remain underutilized in contemporary detection frameworks. Motivated by this insight, we propose a novel detection paradigm that explicitly identifies and leverages cross-modal contradictions as discriminative cues. Our approach consists of two core modules: Cross-modal Consistency Learning (CMCL) and Multi-modal Collaborative Diagnosis (MMCD). CMCL includes Pseudo-label Generation (PLG) and Cross-modal Consistency Diagnosis (CMCD). In PLG, a Multimodal Large Language Model is used to generate pseudo-labels for evaluating cross-modal semantic consistency. Then, CMCD extracts [CLS] tokens and computes cosine loss to quantify cross-modal inconsistencies. MMCD further integrates multimodal features through Multimodal Feature Fusion (MFF) and Probability Scores Fusion (PSF). MFF employs a co-attention mechanism to enhance semantic interactions across different modalities, while a Transformer is utilized for comprehensive feature fusion. Meanwhile, PSF further integrates the fake news probability scores obtained in the previous step. Extensive experiments on established benchmarks (FakeSV and FakeTT) demonstrate our model exhibits outstanding performance in Fake videos detection.

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