task_categories:visual-document-retrieval language:ar language:en language:es language:fr language:ja language:zh license:cc-by-nc-4.0 size_categories:1K<n<10K format:parquet modality:text library:datasets library:pandas library:mlcroissant library:polars arxiv:2508.03644 region:us multilingual multimodal rag document-understanding benchmark