{"url":"/dataset/haystack","name":"Haystack","full_name":null,"description_markdown":"Contrary to prior scene graph datasets, Haystack contains explicit negative annotations, i.e. annotations that a given relation does not have a certain predicate class. Negative annotations are helpful especially in the field of scene graph generation and open up a whole new set of possibilities to improve current scene graph generation models. Haystack is 100% compatible with existing panoptic scene graph datasets and can easily be integrated with existing evaluation pipelines.","description_withheld":null,"homepage":"https://lorjul.github.io/haystack/","introduced_date":"2023-09-05","introduced_date_note":null,"introduced_by":{"paper":"/paper/haystack-a-panoptic-scene-graph-dataset-to","title":"Haystack: A Panoptic Scene Graph Dataset to Evaluate Rare Predicate Classes","first_author":"Julian Lorenz","url":null},"license":null,"modalities":[],"tasks":[{"name":"Scene Graph Generation","url":"/task/scene-graph-generation","datasets_with_task":"/datasets/task/scene-graph-generation"},{"name":"Scene Graph Detection","url":"/task/scene-graph-detection","datasets_with_task":"/datasets/task/scene-graph-detection"},{"name":"Predicate Classification","url":"/task/predicate-classification","datasets_with_task":"/datasets/task/predicate-classification"}],"languages":[],"variants":["Haystack"],"data_loaders":[],"num_papers_in_archive":1,"source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28"},"benchmarks":[],"papers_with_a_benchmark_row":[],"syntology_totals":{"read_at":"2026-09-24T18:15:14+00:00","papers_with_samples":0,"samples_harvested":0,"samples_ran":0,"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."}