{"url":"/dataset/nne","name":"NNE","full_name":null,"description_markdown":"**NNE** is a dataset for Nested Named Entity Recognition in English Newswire","description_withheld":null,"homepage":"","introduced_date":"2019-06-04","introduced_date_note":null,"introduced_by":{"paper":"/paper/nne-a-dataset-for-nested-named-entity","title":"NNE: A Dataset for Nested Named Entity Recognition in English Newswire","first_author":"Nicky Ringland","url":null},"license":null,"modalities":[],"tasks":[{"name":"Named Entity Recognition (NER)","url":"/task/named-entity-recognition-ner","datasets_with_task":"/datasets/task/named-entity-recognition-ner"},{"name":"Nested Named Entity Recognition","url":"/task/nested-named-entity-recognition","datasets_with_task":"/datasets/task/nested-named-entity-recognition"}],"languages":[{"name":"English","url":"/datasets/language/english"}],"variants":["NNE"],"data_loaders":[],"num_papers_in_archive":19,"source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28"},"benchmarks":[{"leaderboard":"/sota/nested-named-entity-recognition-on-nne","task":"Nested Named Entity Recognition","dataset_variant":"NNE","rows":6,"metrics":["Micro F1"],"first_row_in_archive_order":{"model":"Pyramid","paper":"/paper/pyramid-a-layered-model-for-nested-named","metrics":{"Micro F1":"94.68"},"code_links":[{"title":"LorrinWWW/Pyramid","url":"https://github.com/LorrinWWW/Pyramid"},{"title":"federico-giannoni/pyramid-nested-ner","url":"https://github.com/federico-giannoni/pyramid-nested-ner"}]},"note":"rows are the archive's own order at snapshot; nothing here re-ranks them"}],"papers_with_a_benchmark_row":[{"paper":"/paper/parallel-instance-query-network-for-named","title":"Parallel Instance Query Network for Named Entity Recognition","date":"2022-03-20","rows_on_this_dataset":1,"code_links":1,"syntology":null},{"paper":"/paper/boningknife-joint-entity-mention-detection","title":"BoningKnife: Joint Entity Mention Detection and Typing for Nested NER via prior Boundary Knowledge","date":"2021-07-20","rows_on_this_dataset":1,"code_links":0,"syntology":null},{"paper":"/paper/pyramid-a-layered-model-for-nested-named","title":"Pyramid: A Layered Model for Nested Named Entity Recognition","date":"2020-07-01","rows_on_this_dataset":1,"code_links":2,"syntology":null},{"paper":"/paper/nested-named-entity-recognition-via-second","title":"Nested Named Entity Recognition via Second-best Sequence Learning and Decoding","date":"2019-09-05","rows_on_this_dataset":1,"code_links":3,"syntology":null},{"paper":"/paper/neural-segmental-hypergraphs-for-overlapping","title":"Neural Segmental Hypergraphs for Overlapping Mention Recognition","date":"2018-10-03","rows_on_this_dataset":1,"code_links":1,"syntology":null},{"paper":"/paper/a-neural-transition-based-model-for-nested","title":"A Neural Transition-based Model for Nested Mention Recognition","date":"2018-10-03","rows_on_this_dataset":1,"code_links":1,"syntology":null}],"syntology_totals":{"read_at":"2026-09-25T09:33:49+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."}