{"url":"/dataset/coco-mix","name":"COCO-Mix","full_name":null,"description_markdown":"COCO-Mixed dataset includes 897 images with annotations of both known and unknown categories. It contains 2533 unknown objects and 2658 known objects, with original COCO annotations used as labels for known objects. Unambiguous unlabeled objects are also annotated. The dataset is more challenging to evaluate due to the images containing more object instances with complex categories and concentrated locations.","description_withheld":null,"homepage":"https://xuefengbupt.github.io/project_page/unsniffer_cvpr23.html","introduced_date":"2023-03-24","introduced_date_note":null,"introduced_by":{"paper":"/paper/unknown-sniffer-for-object-detection-don-t","title":"Unknown Sniffer for Object Detection: Don't Turn a Blind Eye to Unknown Objects","first_author":"Wenteng Liang","url":null},"license":null,"modalities":[],"tasks":[{"name":"Open World Object Detection","url":"/task/open-world-object-detection","datasets_with_task":"/datasets/task/open-world-object-detection"}],"languages":[],"variants":["COCO-Mix"],"data_loaders":[],"num_papers_in_archive":1,"source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28"},"benchmarks":[{"leaderboard":"/sota/open-world-object-detection-on-coco-mix","task":"Open World Object Detection","dataset_variant":"COCO-Mix","rows":1,"metrics":["unknown F1 score","unknown-AP"],"first_row_in_archive_order":{"model":"unsniffer","paper":"/paper/unknown-sniffer-for-object-detection-don-t","metrics":{"unknown F1 score":"0.287","unknown-AP":"0.150"},"code_links":[{"title":"went-liang/unsniffer","url":"https://github.com/went-liang/unsniffer"}]},"note":"rows are the archive's own order at snapshot; nothing here re-ranks them"}],"papers_with_a_benchmark_row":[{"paper":"/paper/unknown-sniffer-for-object-detection-don-t","title":"Unknown Sniffer for Object Detection: Don't Turn a Blind Eye to Unknown Objects","date":"2023-03-24","rows_on_this_dataset":1,"code_links":1,"syntology":{"read_at":"2026-09-24T18:15:14+00:00","samples_harvested":4,"samples_ran":4,"samples_unverified":0,"pointer_only_for_licence":0,"claim":"Per-sample execution on synthesized fixtures; not a correctness claim."}}],"syntology_totals":{"read_at":"2026-09-24T18:15:14+00:00","papers_with_samples":1,"samples_harvested":4,"samples_ran":4,"samples_unverified":0,"pointer_only_for_licence":0,"papers_with_no_sample_that_ran":0,"note":"the per-paper counts above, summed; not a rate"},"papers_note":"The archive never published its papers-using-dataset list; these are papers with a leaderboard row on this dataset's benchmarks."}