task_categories:text-retrieval multilinguality:monolingual source_datasets:mteb/nfcorpus language:pol size_categories:10K<n<100K format:parquet modality:text library:datasets library:pandas library:mlcroissant library:polars arxiv:2305.19840 arxiv:2502.13595 arxiv:2210.07316 region:us mteb text