task_categories:video-classification task_categories:visual-question-answering task_categories:video-text-to-text language:en license:cc-by-nc-sa-4.0 size_categories:1K<n<10K format:json modality:image modality:text library:datasets library:pandas library:polars library:mlcroissant arxiv:2512.06581 region:us medical surgery video-understanding reinforcement-learning GRPO DAPO