task_categories:video-text-to-text task_categories:visual-question-answering language:en license:cc-by-4.0 size_categories:n<1K modality:text modality:video arxiv:2505.19877 arxiv:2008.08944 arxiv:2509.26636 arxiv:2209.12386 arxiv:1801.04264 region:us video video-understanding video-question-answering anomaly-detection traffic surveillance chain-of-thought aicity aicity-2026 track3