Divide and Conquer: Reliable Multi-View Evidential Learning for Deepfake Detection

• URL: http://arxiv.org/abs/2606.01885v1
• Date: Mon, 01 Jun 2026 08:29:40 GMT
• Title: Divide and Conquer: Reliable Multi-View Evidential Learning for Deepfake Detection
• Abstract summary: Deepfakes have achieved near-perfect semantic realism, leaving forensic traces only in subtle structural anomalies.<n>Existing single-view paradigms often fail to generalize, as dominant semantic features overwhelm subtle artifact cues.<n>We propose Divide-and-Conquer Multi-View Evidential Learning (DiCoME) for Deepfake Detection.
• Score: 20.81268820480393
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: With the evolution of generative models, deepfakes have achieved near-perfect semantic realism, leaving forensic traces only in subtle structural anomalies. However, existing single-view paradigms often fail to generalize, as dominant semantic features overwhelm subtle artifact cues within entangled representations. This imbalance leads to overconfident yet brittle predictions -- a phenomenon we term the Semantic Masking Effect. To address this challenge, we propose a reliable framework called Divide-and-Conquer Multi-View Evidential Learning (DiCoME) for Deepfake Detection. In the "Divide" phase, we employ Geometric View Purification to decompose the entangled representation space through principled geometric projection. This process suppresses semantic interference within artifact-sensitive representations, forming the foundation for decorrelated yet complementary semantic and artifact views. In the "Conquer" phase, we leverage Uncertainty-Aware Evidential Learning to synthesize these distinct views. By explicitly modeling the "epistemic conflict" between semantic and artifact cues, this mechanism provides calibrated uncertainty estimates instead of forcing rigid deterministic decisions. Extensive experiments across multiple benchmarks demonstrate that our method consistently outperforms existing approaches in generalization performance, while providing reliable uncertainty estimation for trustworthy deepfake detection. Code is available at https://github.com/kxl0825/DiCoME.git.

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