Sparse Evidence Can Suffice: Agentic Evidence Seeking for Multimodal Video Misinformation Detection

Multimodal video misinformation detection is commonly formulated as a holistic video-understanding task, where the entire video and its associated content are processed and judged in a single pass. However, real-world misinformation often exhibits a sparse and compositional evidence structure: a reliable decision may depend on only a few coupled clues, while most video content contributes limited additional information. Exhaustive multimodal reasoning may therefore introduce substantial redundan

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ethics.ai (20 July 2026), “Sparse Evidence Can Suffice: Agentic Evidence Seeking for Multimodal Video Misinformation Detection,” evidence record 12212, https://ethics.ai/record/12212 (originally published by arXiv cs.AI).

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